Journal articles on the topic 'Continental flora'

To see the other types of publications on this topic, follow the link: Continental flora.

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Continental flora.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Seppelt, R. D. "Phytogeography of Continental Antarctic Lichens." Lichenologist 27, no. 6 (November 1995): 417–31. http://dx.doi.org/10.1016/s0024-2829(95)80003-4.

Full text
Abstract:
AbstractThe northern and southern polar regions differ substantially in topography, climate, terrestrial habitats and in their biota. The Arctic flora comprises around 900 flowering plants, 600–700 bryophytes and 2000 lichens. The Antarctic flora is depauperate by comparison with only two flowering plants, 100–120 bryophytes, and probably only around 200 lichens. Despite considerable taxonomic uncertainty, broad phytogeographic patterns can be outlined, with species having a Maritime Antarctic, Peninsula and Lesser Antarctic, Circum-Antarctic, and Disjunct distribution pattern. The extent of endemism in the flora is unclear. The origin of the Antarctic lichen flora appears ancient in pan, although there is ample evidence for post-Pleistocene or Holocene colonization and invasion.
APA, Harvard, Vancouver, ISO, and other styles
2

Rajanikanth, A. "Diversification and evolution of Early Cretaceous East Coast flora of India." Journal of Palaeosciences 45 (December 31, 1996): 369–77. http://dx.doi.org/10.54991/jop.1996.1257.

Full text
Abstract:
The Early Cretaceous continental sediments in the East Coast of India are characterized by the Ptilophyllum flora. Interplay of tectonism and sedimentation caused plant fossil preservation in different unconnected paralic deposits distributed in Cauvery, Palar, Krishna-Godavari and Mahanadi basins and in the associated Pranhita-Godavari Graben. Plant megafossils assigned to pteridophytes, pteridosperms, cycadophytes, Taxales, Ginkgoales and Coniferales are variously distributed in these basins. Differential preservation of plant parts denotes an incomplete evolutionary pattern. Variation within the basinal flora reflects a localised aspect. Plant fossils preserved in the Cauvery, Palar, Krishna-Godavari and Mahanadi basins reflect a near shore continental sedimentary fill subjected to more dynamic events like marine transgression, which probably did not allow better preservation of plant fossils. Paucity of carbonised/silicified material, abundance of impressions of plant leaf fossils, scarcity of wood and reproductive parts indicate an unfavourable environment for plant fossil preservation in these pericratonic basins. Whereas in the associated Pranhita-Godavari Graben the plant fossils are better preserved in the sub-aerially exposed basinal areas away from the main coast-line. The Early Cretaceous flora of Cauvery, Palar and Krishna-Godavari basins dominated by cycadophytes suggests presence of seaward margins of fluviodeltaic palaeoenvironment. The pteridophyte dominant flora of Mahanadi Basin represents a decreasing marine influence contrary towards the south-eastwards. The evolution and diversification of the East Coast Early Cretaceous flora runs parallel to other intracratonic basinal flora. The uniformity in the floral component supports an equable climate. Conifers being the upland floral elements constitute chief components of intracratonic basinal flora. The fluviomarginal elements like cycadophytes predominate the pericratonic sedimentation with some upland near basinal taxa. Pteridosperms and Ginkgoales are scanty. Presence of leaves with entire margin indicates a favourable growth environment.
APA, Harvard, Vancouver, ISO, and other styles
3

Koponen, Timo. "Bryophyte flora of Western Melanesia." Bryophyte Diversity and Evolution 2, no. 1 (June 30, 1990): 149–60. http://dx.doi.org/10.11646/bde.2.1.13.

Full text
Abstract:
A project dealing with the hepatic and moss floras of New Guinea and the Solomon Islands has proceeded more than halfway. The revision of the flora is based on the study of ca 17000 specimens collected in 1981. Two new genera and ca 50 new species have been described in 33 published papers and seven manuscripts. Many families, genera and species not previously recorded for the area have been added to the flora. More than 300 names have been reduced to synonyms. The percentage of endemic species of liverworts (40 %) is higher than that of mosses (18 %). Most of the endemic species occur at elevations above 1700 m. The geological history of New Guinea suggests that these high altitude endemics may be relatively young, i.e. less than 10 million years old. The moss flora is more closely related to the floras of Indonesia and the Philippines and continental Asia than to that of Australia. This can be explained by plate tectonics. The altitudinal distribution of hepatic and moss floras partly coincides with the zonation of vegetation proposed earlier. Human influence on bryophyte floras is devastating but a part of the flora may survive in gardens and plantations.
APA, Harvard, Vancouver, ISO, and other styles
4

Ugarte, Eduardo, Francisco Lira, Nicol Fuentes, and Stefan Klotz. "Vascular alien flora, Chile." Check List 7, no. 3 (May 1, 2011): 365. http://dx.doi.org/10.15560/7.3.365.

Full text
Abstract:
We compiled a list of 737 alien plant species growing in continental Chile. Most names were obtained from herbarium specimens (mainly herbarium CONC at Universidad de Concepción, Chile). More than fifty percent of the species are european in origin. Besides, records also include: traits related to life-cycle and brief coments on origin and history of introduction.
APA, Harvard, Vancouver, ISO, and other styles
5

Acharyya, S. K. "Limits of Greater Indian Plate during Gondwana time." Journal of Palaeosciences 36 (December 31, 1987): 290–301. http://dx.doi.org/10.54991/jop.1987.1588.

Full text
Abstract:
Limits of the Greater Indian Gondwana continent varied with its break-up and collisional episodes. Late Palaeozoic basal Gondwana type glaciogene and associated sediments containing cold-water marine fauna, with or without Glossopteris, Cathaysian floral remains or admixtures occur in and across the Himalaya, in south Pamir, Tibet and in Shan-Tenesserim-Malaysian area, i.e., across the Late Mesozoic peri-Indian ophiolite belts. Cathaysian Flora with or without Glossopteris intercalations also occurs in western Iraq and New Guinea, both representing parts of the Gondwanic shield. Thus during Late Palaeozoic the Gondwana continents also hosted Cathaysian flora, especially in low palaeolatitudinal positions. The Himalaya, parts of Middle-East, Tibet, Shan-Tenesserim and Malaysian continental blocks therefore possibly formed parts of the Greater Indian Gondwanic continent. The Late Cretaceous and Eocene olistostromal flysch belts tectonically flooring the ophiolite mélange of the Indus-Tsangpo and Naga-Chin Hills Andaman belts respectively delineate the northern and eastern continental margins of the Indian Plate. The present subduction zone beneath the Andaman island arc represents a westerly relayed Neogene margin of the Indian Plate.
APA, Harvard, Vancouver, ISO, and other styles
6

F., Alekbarov,. "Botanical-Geographical Characteristic of Lichens and Mosses of Korchay State Nature Reserve." Bulletin of Science and Practice, no. 1 (January 15, 2023): 76–80. http://dx.doi.org/10.33619/2414-2948/86/09.

Full text
Abstract:
The geographical analysis shows that the mosses flora of the Korchay State Nature Reserve was not genetically homogeneous but was composed of various geographical elements included in different botanical-geographic regions. The mosses flora as a whole is boreal — 39.5%, arid — 23.7%. Euryholarctic — 15.8% and mountain species — 10.5% play a certain role in the flora. The flora of lichenes has a nemoral-continental character as a whole. Boreal — 14.0%, euryholarctic — 10.7% and hypoarctomontane — 10.7% species also play a significant role in the flora.
APA, Harvard, Vancouver, ISO, and other styles
7

Lucas, A. M. "Assistance at a distance: George Bentham, Ferdinand von Mueller and the production of Flora australiensis." Archives of Natural History 30, no. 2 (October 2003): 255–81. http://dx.doi.org/10.3366/anh.2003.30.2.255.

Full text
Abstract:
George Bentham's seven volume Flora australiensis (1863–1879) was the first continental Flora, and for over a century was the only flora treating the whole of Australia. The work was produced with the “assistance” of Ferdinand Mueller, later von Mueller, the Government Botanist of Victoria from 1853, who loaned his collection, group by group, to Kew, enabling Bentham to compare the specimens with those in British and European herbaria. Mueller, who himself had wished to write the Flora, was stimulated to produce descriptions of the species as they were prepared for shipment, and Bentham's timetable strongly structured his publication programme. The limits of taxa recognized by each were similar, although there were often differences in the rank accorded the taxon. The return of Mueller's now authenticated specimens also temporarily transferred the power over Australian plant systematics to Melbourne, a power Mueller later used. Despite his initial disappointment that Bentham was assigned the Australian Flora by William Hooker in the series of colonial Floras, Mueller's association with the project later became a lifeline, helping him keep his self esteem after he was dismissed from his concurrent post as Director of the Melbourne Botanic Gardens in 1873.
APA, Harvard, Vancouver, ISO, and other styles
8

Kelso, Sylvia. "Vascular flora and phytogeography of Cape Prince of Wales, Seward Peninsula, Alaska." Canadian Journal of Botany 67, no. 11 (November 1, 1989): 3248–59. http://dx.doi.org/10.1139/b89-404.

Full text
Abstract:
Cape Prince of Wales on the western tip of the Seward Peninsula in Alaska is the closest point in continental North America to Asia. From here the eastern tip of the Chukotsk Peninsula is less than 80 km away across the Bering Strait. Owing to the position of the Seward Peninsula, its flora is of great biogeographic interest, yet until recently was poorly known because of the remoteness of the region. Here I document the 292 vascular plant taxa that compose the flora at Cape Prince of Wales. I consider this Bering Strait region a distinct phytogeographic zone. The flora has strong alpine affinities, and it is marked by the local abundance of certain Asiatic and Beringian species, and the absence of continental species requiring summer warmth that are common elsewhere on the Seward Peninsula.
APA, Harvard, Vancouver, ISO, and other styles
9

Choi, Seung Se, Vadim Bakalin, and Seung Jin Park. "Integrating continental mainland and islands in temperate East Asia: liverworts and hornworts of the Korean Peninsula." PhytoKeys 176 (April 20, 2021): 131–226. http://dx.doi.org/10.3897/phytokeys.176.56874.

Full text
Abstract:
The liverwort and hornwort flora of the Korean Peninsula possesses some unique traits arising from the geographic position of the Peninsula, where the mainland flora meets insular flora. This flora is still not exhaustively studied, due not only to political reasons, but also because much less attention has been paid than to adjacent lands by hepaticologists. A checklist presented is based on a study of ca. 15,500 specimens collected by the authors and a review of relevant literature. This study provides the checklist of liverworts and hornworts known from Korea and the geographical distribution of each species within the peninsula. The liverworts and hornworts in Korean flora include 346 taxa (326 species, 16 subspecies and four varieties) in 112 genera and 50 families. Since 2007, 75 taxa of liverworts and four taxa of hornworts are reported as new to the Korean Peninsula, with a number of the new records arising following application of new taxonomic concepts that have become apparent over the last few decades. While compiling the checklist, 42 species, previously reported to Korea, are excluded from the Korean liverwort flora.
APA, Harvard, Vancouver, ISO, and other styles
10

Chandra, Shaila, and Sun Keqin. "Distribution, evolution and extinction of global early Carboniferous flora." Journal of Palaeosciences 43, no. 1-3 (December 31, 1994): 88–97. http://dx.doi.org/10.54991/jop.1994.1179.

Full text
Abstract:
The uniform Lepidodendropsis flora of the Early Carboniferous is uniformly and widely distributed in the Cathaysia, Laurasia, Kazakhstania and Gondwana continents. This is characterized by Lepidodendropsis, Sublepidodendron, Archaeosigillaria, Archaeocalamites, Sphenopteridium, Cardiopteridium, Rhodeopteridium, Rhacopteris, Triphyllopteris and Adiantites, etc. the global climatic differentiation was not very obvious during the Early Carboniferous, therefore, all Early Carboniferous plant assemblages belonged to the same phytogeographic province. It is known that some typical genera of the Lepidodendropsis flora of the Early Carboniferous, such as Lepidodendropsis, Lepidosigillaria and Archaeosigillaria are recorded from the Lower Devonian in Libya, Africa (Lejal-Nicol, 1975) and some elements of this flora are also recorded from the Late Devonian in China and other parts of the world. It is considered that this Lepidodendropsis flora gradually started appearing in the Early Devonian, began to diversify in the Late Devonian and reached its maximum development in the Early Carboniferous. The flora tended to decline in the Late Early Carboniferous and resulted in its extinction in the end of the Early Carboniferous. Although some plant elements in Cathaysia, Euramerica, Angara and Gondwana had already appeared in the Early Carboniferous, especially in the late Early Carboniferous, the occurrence of the new taxa was regarded as a result of gradually increasing climatic differentiation and plant evolution. During the transition period from the Early Carboniferous to the Late Carboniferous, the differentiations of climatic conditions, tectonic movements, continental positions, oceanic currents and glaciation were quite obvious, resulting in the extinction of numerous typical elements of the Early Carboniferous flora and the appearance of some forerunners of the Late Carboniferous floras in the world. The Cathaysia, Euramerica, Angara and Gondwana floras derived from the identical Lepidodendropsis flora of the Early Carboniferous, but developed and flourished in different environmental conditions.
APA, Harvard, Vancouver, ISO, and other styles
11

Burrett, C., N. Duhid, R. Berry, and R. Varne. "Asian and south-western Pacific continental terranes derived from Gondwana, and their biogeographic significance." Australian Systematic Botany 4, no. 1 (1991): 13. http://dx.doi.org/10.1071/sb9910013.

Full text
Abstract:
The recent recognition of numerous small geological terranes in the Indo-Pacific region has revolutionised our understanding of geological and biogeographic processes. Most of these terranes rifted from Gondwana. The Shan-Thai terrane rifted from Australia in the Permian and collided with Indo-China in the Triassic. Parts of Sumatra and Kalimantan may have rifted from Australia in the Cretaceous and carried an angiosperm flora north. Other terranes, now dispersed in South-East Asia and in the Pacific were, at various times in the Cenozoic, part of the Australian continent. Faunal and floral mobilism to Fiji via the Solomons and Vanuatu was probably not difficult up to the late Miocene.
APA, Harvard, Vancouver, ISO, and other styles
12

Sanmartín, Isabel, Cajsa Lisa Anderson, Marisa Alarcon, Fredrik Ronquist, and Juan José Aldasoro. "Bayesian island biogeography in a continental setting: the Rand Flora case." Biology Letters 6, no. 5 (March 24, 2010): 703–7. http://dx.doi.org/10.1098/rsbl.2010.0095.

Full text
Abstract:
We here explore the use of a Bayesian approach to island biogeography for disentangling the evolutionary origins of a continental-scale floristic pattern, the enigmatic ‘Rand Flora’. The existence of disjunct distributions across many plant lineages between Macaronesia–northwest Africa, Horn of Africa–southern Arabia and east–south Africa has long intrigued botanists, but only now can we start analysing it within a statistical framework. Phylogenetic and distributional data from 13 plant lineages exhibiting this disjunct distribution were analysed to estimate area carrying capacities and historical rates of biotic exchange between areas. The results indicate that there has been little exchange between southern Africa and the northern African region, and that this exchange occurred via east Africa. Northwest Africa–Macaronesia shows the smallest carrying capacity but highest dispersal rate with other regions, suggesting that its flora was built up by immigration of lineages, probably from the Mediterranean region and western Asia. In contrast, southern Africa shows the highest carrying capacity and lowest dispersal rate, suggesting a flora formed by in situ diversification. We discuss further improvements of the method for addressing more complex hypotheses, such as asymmetric dispersal between regions or repeated cyclical events.
APA, Harvard, Vancouver, ISO, and other styles
13

Yurukov, Stefan, and Peter Zhelev. "The Woody Flora of Bulgaria: A Review." Schweizerische Zeitschrift fur Forstwesen 152, no. 2 (February 1, 2001): 52–60. http://dx.doi.org/10.3188/szf.2001.0052.

Full text
Abstract:
This review presents a brief survey of the Bulgarian dendroflora. The country is situated in the transition zone between the continental and Mediterranean climate and,therefore, considerable habitat diversity exists on its territory. About 370 species – trees, shrubs and sub-shrubs – have been established up until today. An overview of the species'diversity, woody formations and their distribution is presented. The data show that Bulgaria is characterised by a relatively rich dendroflora that needs appropriate close-to-nature management and measures for its conservation.
APA, Harvard, Vancouver, ISO, and other styles
14

García-Fernández, María Eugenia, and Marina Aboal. "Cyanidium caldarium (Tilden) geitler (Cyanidiaceae, Cyanidiophyceae) nueva cita para la flora algal continental española." Acta Botanica Malacitana 36 (December 1, 2011): 164–69. http://dx.doi.org/10.24310/abm.v36i1.2825.

Full text
Abstract:
Cyanidium caldarium (Tilden) Geitler (Cyanidiaceae, Cyanidiophyceae) new record for the Spanish continental algal flora Palabras clave. Cyanidiophyceae, Cyanidium, cuevas, aguas termales, material yesífero, distribución. Keywords. Cyanidiophyceae, Cyanidium, caves, thermal springs, gypsum, distribution.
APA, Harvard, Vancouver, ISO, and other styles
15

SMITH, ALAN R., and MICHAEL KESSLER. "Prodromus of a fern flora for Bolivia. XXIV. Lonchitidaceae." Phytotaxa 332, no. 3 (December 22, 2017): 295. http://dx.doi.org/10.11646/phytotaxa.332.3.7.

Full text
Abstract:
We provide a synopsis to the Lonchitidaceae in Bolivia, a family comprising a single genus and species in the country and in the Neotropics. The sole species, Lonchitis hirsuta, is widespread and very similar to the only other species in the genus, L. occidentalis, in continental Africa and Madagascar.
APA, Harvard, Vancouver, ISO, and other styles
16

Belyakova, Кю Тю. "Supplement to the flora of Cyanoprokaryota of the Russian Northern and Far-Eastern Seas." Novosti sistematiki nizshikh rastenii 44 (2010): 11–21. http://dx.doi.org/10.31111/nsnr/2010.44.11.

Full text
Abstract:
Seven Cyanoprokaryota species from Russian Northern and Far Eastern seas are reported. Five of them are rare and little known marine species of the world flora and new for the flora of Russia. Two continental freshwater species are first recorded in the Northern seas. The species descriptions are given, their ecology, distribution and systematics are discussed. One new combination is proposed: Chlorogloea clarionensis (Setchell et Gardner) Beljakova comb. nov. (= Polycystis clarionensis Setchell et Gardner).
APA, Harvard, Vancouver, ISO, and other styles
17

Pšenička, Josef, Stanislav Opluštil, Ausonio Ronchi, and Zbyněk Šimůnek. "Revision of the Pennsylvanian Flora from Val Sanagra in Western Part of the Southern Alps (Italy)." Folia Musei rerum naturalium Bohemiae occidentalis. Geologica et Paleobiologica 46, no. 1-2 (December 1, 2012): 31–79. http://dx.doi.org/10.2478/fbgp-2013-0003.

Full text
Abstract:
Abstract The Pennsylvanian flora from the Alpe Logone/Val Sanagra locality in the Western Lombardy (Southern Alps, Italy) last underwent a taxonomic study in the mid 20th century. The main problem is generally poor preservation of the plant remains, which makes their identification problematic. Despite this, the authors have identified 43 fossil species from this locality. Based on the sedimentary context of this paleoflora, we assume that the Val Sanagra sediments were deposited in a continental setting, in a fluvial environment with a well-developed and vegetated floodplain where where clastic substrates would locally and occasionally change into peat swamp. The common presence of rhytidolepis and sub-rhytidolepis sigillarias, as well of Eusphenopteris neuropteroides, Lobatopteris miltonii, Mariopteris latifolia, Paripteris linguaefolia, Pecopteris microphylla, Alethopteris sp. (cf. grandinii) indicates that the flora from the Val Sanagra locality spans the interval between the Duckmantian and Bolsovian (middle Moscovian), and thus represents one of the oldest Pennsylvanian floras of the Southern Alps.
APA, Harvard, Vancouver, ISO, and other styles
18

Safarova, F., and E. Novruzova. "Self-defense Mechanisms of Plants in Nature." Bulletin of Science and Practice 7, no. 8 (August 15, 2021): 73–77. http://dx.doi.org/10.33619/2414-2948/69/09.

Full text
Abstract:
Plants, like all living things in nature, must protect themselves from enemies in a certain way. These methods of protection provide a greater variety plant species in the Nakhchivan. The flora of the Nakhchivan with a sharply continental climate, rich in xerophytic flora, secrete more biologically active substances, for the purpose of self-defense. Plant species containing plant anteraquinones, alkaloids, coumarins, tannins, glycosides, saponins, have a toxic effect on living things, alienating them from themselves or poisoning them.
APA, Harvard, Vancouver, ISO, and other styles
19

INOUE, M. "The lichen flora and habitats of the Syowa region, continental Antarctica." Lichenologist 27 (1995): 451–62. http://dx.doi.org/10.1016/s0024-2829(05)80005-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Inoue, M. "The Lichen Flora and Habitats of the Syowa Region, Continental Antarctica." Lichenologist 27, no. 6 (November 1995): 451–62. http://dx.doi.org/10.1016/s0024-2829(95)80005-0.

Full text
Abstract:
AbstractThe lichen flora and habitats in the Syowa region of continental Antarctica were surveyed. The distribution patterns of lichens appear to reflect habitat salinity, derived from wind-blown sea spray. Some halotolerant species are established in saline habitats where snow dunes are well developed. Snow and ice ameliorate the salinity of the habitat and provide a major source of moisture for lichens. Wind-borne drift snow carried by katabatic winds or occasional snow showers also provide the source of moisture to lichens growing on dry rock habitats in the Syowa region.
APA, Harvard, Vancouver, ISO, and other styles
21

Inoue, M. "The Lichen Flora and Habitats of the Syowa Region, Continental Antarctica." Lichenologist 27, no. 06 (November 1995): 451. http://dx.doi.org/10.1017/s0024282995000582.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Silva, Vasco, Gideon F. Smith, and Estrela Figueiredo. "Notes on the distribution range of Sedum rubens L. (Crassulaceae) in continental Portugal." Acta Botanica Malacitana 46 (October 25, 2021): 163–66. http://dx.doi.org/10.24310/abm.v46i.13680.

Full text
Abstract:
The natural geographical distribution range of Sedum rubens in continental Portugal is reassessed. Based on the Flora iberica provinces recognised for the country, the occurrence of the species in Ribatejo is confirmed but it is thus far excluded from Beira Alta.
APA, Harvard, Vancouver, ISO, and other styles
23

El Mokni, Ridha, Salvatore Pasta, and Davide Pacifico. "Amaryllis belladonna L. (Amaryllidaceae, Amaryllidoideae), first record as naturalized geophyte in Tunisia and continental North Africa." Hacquetia 19, no. 2 (December 1, 2020): 331–36. http://dx.doi.org/10.2478/hacq-2020-0011.

Full text
Abstract:
AbstractAmaryllis belladonna L. is recorded for the first time as a naturalized non-native geophyte new to Tunisian and continental North African flora. Additional information on its current distribution and habitat, a brief morphological description, as well as some taxonomic notes, are provided.
APA, Harvard, Vancouver, ISO, and other styles
24

Papković, Dora, and Antun Alegro. "Vascular flora of the geomorphological nature monument Crveno jezero (Dalmatia, Croatia)." Natura Croatica 30, no. 1 (July 31, 2021): 191–205. http://dx.doi.org/10.20302/nc.2021.30.11.

Full text
Abstract:
The vascular flora of the geomorphological natural monument Crveno jezero, located in the Dalmatian hinterland, was studied during 2017 for the first time. A total of 149 plant taxa belonging to 52 families were recorded, with Asteraceae, Fabaceae, Lamiaceae, and Poaceae being the most abundant families. The dominance of Mediterranean, South-European, and Eurasian floral elements indicates that the study area is under the influence of both oceanic and continental climates, which is in accordance with the specific location of the study area. We noted a diversity of life form strategies, with the five main strategies having a share of at least 10% of the total number of species. Most species in the study area had competitive or stress-tolerant strategies, as well as the capacity for vegetative propagation, which was to be expected in this fairly unfavorable environment. No fewer than 15 recorded species are protected by law, including 11 endemic species, which represent 7.4% of the total flora. Most of the endemic species are Illyrian-Adriatic and Illyrian-Balkanic endemics. The results of the present study greatly contribute to the knowledge of the flora of Crveno jezero and the Imotski region, and they can be used as a basis for the future conservation of the area.
APA, Harvard, Vancouver, ISO, and other styles
25

Angelo, Courtney L., David J. Rosen, and James J. Lange. "Eleocharis mutata (Cyperaceae), new to the flora of Florida, U.S.A." Journal of the Botanical Research Institute of Texas 14, no. 2 (December 7, 2020): 405–10. http://dx.doi.org/10.17348/jbrit.v14.i2.1018.

Full text
Abstract:
This is the first record of Eleocharis mutata in Florida, and the second record in the continental USA, suggesting a potential natural range expansion of this species from the Caribbean region. A key to species of Eleocharis subg. Limnochloa in Florida is included, along with a site description of the occurrence, visual aids for identification, and a brief discussion of nativity.
APA, Harvard, Vancouver, ISO, and other styles
26

Berthelin, Martine, Jean Broutin, Denis Vaslet, Yves-Michel Le Nindre, and Mohammed Halawani. "Mixed Late Permian floras and related palaeoenvironments in the Khuff Formation of central Saudi Arabia." GeoArabia 11, no. 3 (July 1, 2006): 65–86. http://dx.doi.org/10.2113/geoarabia110365.

Full text
Abstract:
ABSTRACT In the outcrops of central Saudi Arabia, Permian flora have been recovered from the Unayzah Formation and the Midhnab Member of the Khuff Formation. The Unayzah Flora is found in the Unayzah Formation (below the Khuff Formation), and it is a true Cathaysian-Euramerican mixed palaeoflora with a probable age of Middle Permian (either Roadian or/and Wordian). The Unayzah Flora would therefore be coeval with the Gharif Flora from the Al Huqf area of Oman (uppermost Gharif Formation). The Midhnab Flora is found in the continental Midhnab Member (subunit 4) of the Khuff Formation. It is a mixed Late Permian flora related to the Gondwanan, Euramerican and Cathaysian realms. New associations of the Midhnab Flora were discovered at Jal Khartam, Jal al Watah and Wadi al Batan in the Qasim area of central Saudi Arabia. The new Midhnab Flora are systematically described here for the first time. The combination of palaeobotanical and sedimentological data led to the characterisation and organisation of the various palaeoenvironments in which each palaeofloral association was growing. Comparison between the Permian flora of Saudi Arabia, Oman, Anatolia (Turkey) and surrounding realms provides the means for reconstructing a more complete palaeogeographic setting for the Arabian Plate in a global palaeobiogeography.
APA, Harvard, Vancouver, ISO, and other styles
27

Moreau, Jean-David, Louis Baret, Gérard Lafaurie, and Carmela Chateau-Smith. "Terrestrial plants and marine algae from the Late Jurassic lithographic limestone of the Causse Méjean (Lozère, southern France)." Bulletin de la Société Géologique de France 187, no. 2 (March 1, 2016): 121–27. http://dx.doi.org/10.2113/gssgfbull.187.2.121.

Full text
Abstract:
Abstract A new Late Jurassic flora was discovered in the fossiliferous lithographic limestone of the Causse Méjean, Lozère (southern France). It consists of the first Kimmeridgian/Tithonian plants from this area. Fossil plants are represented by megaremains preserved as impressions. This flora shows a co-occurrence of terrestrial plants and marine algae. The land plants include vegetative remains ascribed to bennettitaleans (Zamites Brongniart, 1828), conifers (Brachyphyllum Brongniart, 1828), and pteridosperms (Cycadopteris Zigno, 1853). Marine algae were ascribed to dasyclads (Goniolina D’Orbigny, 1850). Lithological and palaeontological features suggest preservation in a flat, homogeneous, protected environment, perhaps a brackish or marine lagoon, influenced by both continental and marine inputs. This discovery complements the few existing reports of European Late Jurassic floras, and indicates that coastal habitats were dominated by sub-arborescent vegetation, consisting of bennettitaleans and pteridosperms, and arborescent plants, such as conifers. Both the palaeoenvironmental context and certain xerophytic features suggest that these terrestrial plants from the Causse Méjean were well adapted to the hot, dry conditions of coastal areas.
APA, Harvard, Vancouver, ISO, and other styles
28

Jerzykiewicz, T., and A. R. Sweet. "The Cretaceous–Tertiary boundary In the central Alberta Foothills. I: Stratigraphy." Canadian Journal of Earth Sciences 23, no. 9 (September 1, 1986): 1356–74. http://dx.doi.org/10.1139/e86-130.

Full text
Abstract:
The Cretaceous–Tertiary boundary in the Rocky Mountain Foothills occurs within a continental sequence carrying economic coal deposits and known as the Coalspur Formation. This formation occurs between the fluvial Brazeau (below) and Paskapoo formations. The exact position of the boundary is located at the base of the lowest coal (Mynheer) within the Coalspur Formation. The initiation of coal deposition in the Coalspur Formation is not a unique event, as it is consistent with the cyclic pattern established within the underlying Brazeau Formation. However, the magnitude and lateral continuity of coal zone development far exceed those found in the underlying formation.The classic shift from a diverse, late Maastrichtian flora (within which angiosperm and especially aquiloid pollen are prominent) to a low-diversity, Early Paleocene flora dominated by gymnosperm pollen and miospores is documented. Deviations from most previously recognized floral events at the Cretaceous–Tertiary boundary include (1) san angiosperm pollen peak immediately above the determined boundary position (formed by two dominant species, Syncolporites minimus and Triporopollenites plektosus) and (2) the extension of the range of species of aquiloid pollen into the Paleocene.
APA, Harvard, Vancouver, ISO, and other styles
29

Stévart, T., G. Dauby, P. P. Lowry, A. Blach-Overgaard, V. Droissart, D. J. Harris, B. A. Mackinder, et al. "A third of the tropical African flora is potentially threatened with extinction." Science Advances 5, no. 11 (November 2019): eaax9444. http://dx.doi.org/10.1126/sciadv.aax9444.

Full text
Abstract:
Preserving tropical biodiversity is an urgent challenge when faced with the growing needs of countries. Despite their crucial importance for terrestrial ecosystems, most tropical plant species lack extinction risk assessments, limiting our ability to identify conservation priorities. Using a novel approach aligned with IUCN Red List criteria, we conducted a continental-scale preliminary conservation assessment of 22,036 vascular plant species in tropical Africa. Our results underline the high level of extinction risk of the tropical African flora. Thirty-three percent of the species are potentially threatened with extinction, and another third of species are likely rare, potentially becoming threatened in the near future. Four regions are highlighted with a high proportion (>40%) of potentially threatened species: Ethiopia, West Africa, central Tanzania, and southern Democratic Republic of the Congo. Our approach represents a first step toward data-driven conservation assessments applicable at continental scales providing crucial information for sustainable economic development prioritization.
APA, Harvard, Vancouver, ISO, and other styles
30

Catling, Paul M. "Additions to the Flora of the Continental Northwest Territories from the Great Slave Lake Area." Canadian Field-Naturalist 119, no. 3 (July 1, 2005): 437. http://dx.doi.org/10.22621/cfn.v119i3.155.

Full text
Abstract:
Eleven species are reported as new to the flora of the continental Northwest Territories. The new native species include Artemesia dracunculus, Chenopodium leptophyllum, Eleocharis erythropoda, Panicum capillare, Schoenoplectus pungens and Symphyotrichum lanceolatum subsp. hesperium var. hesperium. New alien species reported include Achillea ptarmica, Chaenorhinum minus, Galium aparine, Malva neglecta and Silene cserei. Sonchus arvensis, previously reported, is based on material referable to a subsp. uliginosus. Forms new to the flora include Achillea millefolium f. rosea and Actaea rubra f. neglecta. Locations, habitats and distinctive features are provided for the additional taxa. The Hay River lowland ecoregion is a floristically rich area that deserves more botanical exploration. Erratum included.
APA, Harvard, Vancouver, ISO, and other styles
31

Mei, Giacomo, Vedran Šegota, Adriano Stinca, Joso Vukelić, Dario Baričević, Fabio Taffetani, and Antun Alegro. "Cystopteris dickieana R.Sim (Cystopteridaceae), a new fern in the continental Balkans flora." Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology 155, no. 1 (August 5, 2020): 1–4. http://dx.doi.org/10.1080/11263504.2020.1799103.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Rosati, Leonardo, Simonetta Fascetti, Vito Antonio Romano, Giovanna Potenza, Maria Rita Lapenna, Antonio Capano, Pietro Nicoletti, et al. "New Chorological Data for the Italian Vascular Flora." Diversity 12, no. 1 (January 5, 2020): 22. http://dx.doi.org/10.3390/d12010022.

Full text
Abstract:
Despite the importance for scientific and conservation purposes, the knowledge of the Italian territory is far from exhaustive. New chorological data for 87 vascular taxa regarding the central-southern part of Italy and its two main islands (Sicilia and Sardegna) are presented. Among these taxa, Epilobium nummularifolium, Metrosideros excelsa, and Salvinia minima are recorded as casual aliens for the first time in Europe (excluding Azores and Madeira for M. excelsa), while Cyclamen balearicum and Polygala rupestris are reported for the first time and confirmed for Italian native flora, respectively. Furthermore, several taxa are new or confirmed at regional level. Finally, Lathyrus cirrhosus, Urginea fugax, and Linum tenuifolium are excluded from Italy, continental and peninsular Italy, and Sardegna, respectively.
APA, Harvard, Vancouver, ISO, and other styles
33

Andriyanova, E. A., and V. B. Dokuchaeva. "Сосудистые растения отвалов золотодобычи Магаданской области." Bulletin of the North-East Science Center, no. 4 (December 28, 2020): 70–81. http://dx.doi.org/10.34078/1814-0998-2020-4-70-81.

Full text
Abstract:
The list of vascular plants found to date in the areas disturbed by gold mining in the continental part of Magadan oblast has been compiled according to the original and published data. In total, 241 species of vascular plants grow at the gold-mining dumps in Tenkinsky, Yagodninsky and Susumansky districts. The range of leading families in flora of technogenic landscapes is characteristic for boreal flora. Some endemic (Oxytropis vasskovskyi) and rare (Scirpus tabernaemontani, Salix pyrolifolia) species grow in the dumps. We identified 44 plant species that can be used for gold mining dumps recultivation in Magadan Oblast.
APA, Harvard, Vancouver, ISO, and other styles
34

Kolomyts, Erland G. "Pacific ocean mega ecotone of Northern Eruasia as the belt of the origin of the modern continental biosphere." Resources Environment and Information Engineering 4, no. 1 (2022): 213–36. http://dx.doi.org/10.25082/reie.2022.01.005.

Full text
Abstract:
The Pacific Ocean margin of Eurasia includes the age row (at the geologic time scale) of geoecotone objects which can be imagined by certain nodal stages of the evolutionary trajectory of exogenous landscape genesis in the continental biosphere. The reported strategy of scientific research is aimed at the establishment of zonal-regional and local regularities of landscape organization of insular and marginal-continental land in different morphotectonic and macroclimatic sectors of the Pacific Ocean mega-ecotone of Northern Eurasia, which is considered as a natural laboratory for studying the modern stage of development of the geographical envelope The empirical statistical models of the island-arc stage of continental biosphere development in the North-West Pacific have been created by the example of experimental test ground of the active Mendeleev volcano on the Kunashir Island (the South Kuril Ridge). It was shown that on this initial stage local geomorphological and hydro-edaphic conditions created the centers of origin of diverse phytocoenological structures. An exceptionally high percentage of green mass in the structure of production results in the acceleration of the biological cycle as a factor of stability of forest community under unfavorable conditions of “cold” oceanicity. Geothermal energy induces rearrangement of the plant cover towards the increase in its flora- and phytocoenotic diversity to the detriment of biomass formation rate. The “climatically unjustified” but sufficiently stable sub-boreal forest ecosystems were formed, as well as the early stages of buffer forest communities. The multidimensional empirical-statistical modeling of landscape connections in the marginal-continental sector of the Pacific Ocean mega ecotone has been performed based on an experimental site in the Lower By-Amur Region. The ecology of the boreal-forest landscape of the continental margin characterizes the mature stage of evolution of the continental biosphere. The regularities and causal mechanisms of the formation of buffer forest communities typical of ecotone systems have been represented more integrally. Forests of this phenomenal buffer flora are distinguished by extremely high parameters of structural and functional development and have reached the state approaching the evolutionary climax. The previously advanced concepts of the Pacific ecotone of Northern Eurasia as a focus of evolutionary processes in the continental biosphere have been confirmed.
APA, Harvard, Vancouver, ISO, and other styles
35

Cody, William J., Kenneth L. Reading, and Jennifer M. Line. "Additions and Range Extensions to the Vascular Plant Flora of the Continental Northwest Territories and Nunavut, Canada, II." Canadian Field-Naturalist 117, no. 3 (July 1, 2003): 448. http://dx.doi.org/10.22621/cfn.v117i3.749.

Full text
Abstract:
Based on field reconnaissance since the publication of Flora of the Continental Northwest Territories in 1980, particularly in the District of Keewatin and northeastern District of Mackenzie (Nunavut) and Nahanni National Park, information is provided on geographically significant plant occurrences. One new taxon, Polemonium boreale forma albiflorum, is described, fourteen native taxa are reported as new to the region: Carex hoodii, C. microptera, C. petasata, Corispermum hookeri, C. ochotense, Danthonia spicata, Draba stenoloba, Erysisnum coarctatum, Halenia deflexa, Polygonum fowleri, P. ramosissimum, Salix rotundifolia ssp. rotundifolia, Silene uralensis ssp. ogilviensis, and Vaccinium ovalifolium. Five introduced taxa, Crepis tectorum, Corispermum villosum, Deschampsia elongata, D. incisa var. incisa, and Medicago sativa ssp. falcata are new to the flora of the region. Two native taxa, Danthonia intermedia and Potentilla porsildiorum are deleted from the flora and Ranunculus aquatilis var hispidulus is placed in synonymy. Significant range extensions for 125 native and one introduced taxon are included.
APA, Harvard, Vancouver, ISO, and other styles
36

Pereira, Sonia Maria Barreto, JULIANA TORRES, and Lisia Monica de Souza Gestinari. "Composition and Distribution of Deep Water Macroalgae Species from the Continental Shelf of Sergipe State, Brazil." Phytotaxa 190, no. 1 (December 24, 2014): 250. http://dx.doi.org/10.11646/phytotaxa.190.1.15.

Full text
Abstract:
This study investigates the deep-water flora of the continental shelf in Sergipe State, Brazil located between 10º36’08’’ – 11º21’07’’S and 36º28’10’’ – 37º13’47’’W. The samples were collected by dragging at 18 sampling sites, between 10 to 30 m depth, from May 1999 to March 2000. A total of 91 taxa of marine benthic macroalgae were identified (56 Rhodophyta, 20 Heterokontophyta and 15 Chlorophyta). Forty-seven (47) of these are new occurrences for Sergipe flora. Rhodophyta dominated, accounting for 61% of the total species collected, with the order Ceramiales having the highest number of species present (39.55%), followed by Heterokontophyta (23%), mostly represented by Dictyotales (65%). Finally, 15 Chlorophyta taxa were found (16%), mainly composed of Bryopsidales (53%).
APA, Harvard, Vancouver, ISO, and other styles
37

Morin, Nancy R., Luc Brouillet, and Geoffrey A. Levin. "Flora of North America North of Mexico." Rodriguésia 66, no. 4 (2015): 973–81. http://dx.doi.org/10.1590/2175-7860201566416.

Full text
Abstract:
Abstract The Flora of North America north of Mexico treats all native and naturalized vascular plants and bryophytes in Canada, Greenland, St. Pierre et Miquelon, and the continental United States including the Florida Keys and Aleutian Islands (approximately 18 million square kilometers). It provides accepted names, literature citations, basionyms, synonyms, morphological descriptions, habitat, geographical distribution, conservation or weed status, and a discussion of taxonomic issues for approximately 20,000 species. Of the total 30 volumes anticipated, 18 have been published and one is in press, treating 2021 genera and 12,393 species. For the remaining volumes, 763 genera and 5,008 species have been submitted, and 82 of the 144 families have been submitted in full. Completion is anticipated by the end of 2017. The project is managed by the Flora of North America Association. Content from published volumes is available through eFloras and JSTOR and has been provided to the World Flora informatics team.
APA, Harvard, Vancouver, ISO, and other styles
38

Pfeiffer, Tanja Žuna, Dubravka Špoljarić Maronić, Vanda Zahirović, Filip Stević, Milorad Zjalić, Katarina Kajan, Siniša Ozimec, and Melita Mihaljević. "Early Spring Flora of the Sub-Pannonic Steppic Grassland (NATURA 2000 Site) in Bilje, Northeast Croatia." Acta Botanica Croatica 75, no. 2 (October 1, 2016): 157–63. http://dx.doi.org/10.1515/botcro-2016-0029.

Full text
Abstract:
Abstract The diversity of early spring vascular flora was studied in the Sub-Pannonic steppic grassland in the village of Bilje, north eastern Croatia. In all, 109 plant taxa within 35 families were found. The highest number of taxa belongs to the families Poaceae, Fabaceae, Asteraceae, Caryophyllaceae, Lamiaceae and Rosaceae. Specific habitat conditions, characterized by moderately wet and moderately acidic soil with intermediate fertility and the effects of the continental climate favour the development of different plant life forms. Out of the total recorded plant taxa, hemicryptophytes make up 59.6%, followed by therophytes (22.0%) and geophytes (13.8%). Chorological analysis shows that the most numerous are plants of Eurasian (33.9%), Pontic-Central-Asian (21.1%) and Central European (21.1%) floral elements. According to their status in the Red List, three critically endangered (CR), one vulnerable (VU) and three nearly threatened (NT) plant species were found. Altogether, the steppe-like grassland in Bilje is a unique habitat rich in valuable plants of the Croatian flora, including the critically endangered Doronicum hungaricum, therefore it is of great importance to preserve it. Important management tools include mowing and controlling the spreading of cultivated and invasive plant species.
APA, Harvard, Vancouver, ISO, and other styles
39

Svanidze, Ts I., Zurab Lebanidze, and E. B. Jakobidze. "Upper Triassic-Bajocian vegetation of the Western Georgia and stratigraphical significance of the flora." Geologica Balcanica 30, no. 1-2 (June 30, 2000): 19–24. http://dx.doi.org/10.52321/geolbalc.30.1-2.19.

Full text
Abstract:
Mesozoic deposits are very wide spread in Georgia, but in contrast to the Jurassic and Cretaceous, the Triassic deposits have rather restricted distributiоn and they are investigated scantily. In the Dzirula massif the Triassic is represented bу continental - shallow-marine facies, whereas in Svaneti the Triassic builds uр the upper part of the basinal Dizi series. In the present paper оn the basis of paleobotanical and stratigraphical analysis it became possible to establish uppermost Triassic age of the соntinеntаl - shallow-marine deposits (Narula suite) of the Dzirula massif. Moreover, соrrеlаtiоn between the Late Triassic flora of Georgia and its synchronous flora of the Еurореаn-Sinian paleophytogeographic subregion is саrriеd out. As to Early Jurassic, the age of the containing flora deposits is defined more precisely and the environment of vegetation cover is restored. In the territory of Georgia uрper part of the "Bajocian porphiritic" suite does not соntаin fаunа, but it is rich in floristic remnants. Composition of this flora does not differ from the Мiddle Jurassic flora of the Indo-European paleofloristic subrеgiоn. The obtained data will promote to improve the Mesozoic stratigraphical scheme of Georgia.
APA, Harvard, Vancouver, ISO, and other styles
40

Iamonico, Duilio, and Ridha El Mokni. "Phymosia (Malvaceae) a new genus for the flora of Africa, with nomenclatural notes." Hacquetia 19, no. 2 (December 1, 2020): 325–30. http://dx.doi.org/10.2478/hacq-2020-0008.

Full text
Abstract:
AbstractAs part of ongoing studies of Tunisian Malvaceae, a population of Phymosia umbellata was discovered in Monastir city. It represents the first generic record for the national and continental flora. Morphological characters, as well as ecological data are given. A list of all the accepted names in Phymosia, their synonyms and types is also provided, with nomenclatural notes about some accepted Phymosia species.
APA, Harvard, Vancouver, ISO, and other styles
41

Catling, Paul M. "Erratum: Additions to the flora of the continental Northwest Territories from the Great Slave area. (2005) 119(3): 437-440." Canadian Field-Naturalist 120, no. 1 (January 1, 2006): 133. http://dx.doi.org/10.22621/cfn.v120i1.258.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Smirnova, S. V., T. V. Safronova, A. F. Luknitskaya, and O. N. Boldina. "Rare and new for Antarctica species of algae from the continental waterbodies of Schirmacher Oasis." Novosti sistematiki nizshikh rastenii 55, no. 2 (November 7, 2021): 335–47. http://dx.doi.org/10.31111/nsnr/2021.55.2.335.

Full text
Abstract:
One rare (Dinobryon cylindricum) and two new (Gonium pectorale, Staurastrum orbiculare) for the Antarctic algal flora species were found in the waterbodies of Schirmacher Oasis (East Antarctica). Their locations are described. Data on morphology, ecology and distribution of the recorded species are summarized.
APA, Harvard, Vancouver, ISO, and other styles
43

ESCOBEDO, VÍCTOR M., JORGE E. ARANDA, and SERGIO A. CASTRO. "Hipótesis de Naturalización de Darwin evaluada en la flora exótica de Chile continental." Revista chilena de historia natural 84, no. 4 (December 2011): 543–52. http://dx.doi.org/10.4067/s0716-078x2011000400007.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Ochyra, Ryszard, Halina Bednarek-Ochyra, and Jacques Van Rooy. "Dicranella hookeri(Dicranaceae, Musci), An Addition to the Moss Flora of Continental Africa." Herzogia 26, no. 1 (June 2013): 169–74. http://dx.doi.org/10.13158/heia.26.1.2013.169.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Smykla, Jerzy, Beata Krzewicka, Karina Wilk, Steven Emslie, and Lucyna Śliwa. "Additions to the lichen flora of Victoria Land, Antarctica." Polish Polar Research 32, no. 2 (January 1, 2011): 123–38. http://dx.doi.org/10.2478/v10183-011-0009-5.

Full text
Abstract:
Additions to the lichen flora of Victoria Land, Antarctica Lichens of relict penguin colonies and sites affected by active penguin colonies were investigated in Victoria Land, Ross Sea sector, continental Antarctica. A total of 17 coastal sites, seven in northern and ten in southern Victoria Land, have been investigated across 7° of latitude from 71° to 78°S. Altogether 40 taxa of lichens have been identified. Four of the recorded species are new to the Antarctic - Caloplaca erecta, C. soropelta, C. tominii and Physcia tenella; two species are new to the Victoria Land area - Lecania nylanderiana and Lecanora polytropa. The first lichen records from Beaufort Island are also provided. Data presented here expand the knowledge on the occurrence, diversity and distribution of Victoria Land lichens.
APA, Harvard, Vancouver, ISO, and other styles
46

Pócs, Tamás, and Kåre Arnstein Lye. "New records and additions to the hepatic flora of Uganda 2." Bryophyte Diversity and Evolution 17, no. 1 (December 31, 1999): 23–33. http://dx.doi.org/10.11646/bde.17.1.8.

Full text
Abstract:
82 liverwort taxa are recorded from Uganda, of which 24 are new to the flora of the country. Colura hedbergiana, Colura kilimanjarica and Harpalejeunea fischeri found on Mt. Elgon, were previously known only from their type locality on Mt. Kilimanjaro or on Mt. Karisimbi. A Madagascan-Mascarene species, Plagiochila boryana was also found on Mt.Elgon. Its only known previous locality in continental Africa was Mt. Kilimanjaro.
APA, Harvard, Vancouver, ISO, and other styles
47

EDIRISOORIYA, G., H. A. DHARMAGUNAWARDHANE, and STEPHEN MCLOUGHLIN. "The first record of the Permian Glossopteris flora from Sri Lanka: implications for hydrocarbon source rocks in the Mannar Basin." Geological Magazine 155, no. 4 (December 13, 2016): 907–20. http://dx.doi.org/10.1017/s0016756816001114.

Full text
Abstract:
AbstractStrata exposed near Tabbowa Tank, Tabbowa Basin, western Sri Lanka have yielded the first representatives of the distinctive Permian Glossopteris flora from that country. The assemblage includes gymnosperm foliage attributable to Glossopteris raniganjensis, roots referable to Vertebraria australis, seeds assigned to Samaropsis sp., sphenophyte axes (Paracalamites australis) and foliage (Sphenophyllum emarginatum), and fern foliage (Dichotomopteris lindleyi). This small macroflora is interpreted to be of probable Lopingian (late Permian) age based on comparisons with the fossil floras of Peninsula India. Several Glossopteris leaves in the assemblage bear evidence of terrestrial arthropod interactions including hole feeding, margin feeding, possible lamina skeletonization, piercing-and-sucking damage and oviposition scarring. The newly identified onshore Permian strata necessitate re-evaluation of current models explaining the evolution of the adjacent offshore Mannar Basin. Previously considered to have begun subsiding and accumulating sediment during Jurassic time, we propose that the Mannar Basin may have initiated as part of a pan-Gondwanan extensional phase during late Palaeozoic – Triassic time. We interpret the basal, as yet unsampled, seismically reflective strata of this basin to be probable organic-rich continental strata of Lopingian age, equivalent to those recorded in the Tabbowa Basin, and similar to the Permian coal-bearing successions in the rift basins of eastern India and Antarctica. Such continental fossiliferous strata are particularly significant as potential source rocks for recently identified natural gas resources in the Mannar Basin.
APA, Harvard, Vancouver, ISO, and other styles
48

Ricklefs, Robert E., and Susanne S. Renner. "Response to Comments on “Global Correlations in Tropical Tree Species Richness and Abundance Reject Neutrality”." Science 336, no. 6089 (June 28, 2012): 1639.6–1639. http://dx.doi.org/10.1126/science.1222685.

Full text
Abstract:
The neutral models in the Technical Comments depend on the assumption of an initially homogeneous global tropical forest flora. Fossil data and phylogenetic reconstructions instead reveal a high degree of provincialism before the development of modern tropical forests with only occasional long-distance dispersal between continental regions, favoring parallel diversification of a small number of ancestral lineages that dispersed between regions at widely different times.
APA, Harvard, Vancouver, ISO, and other styles
49

Ling, H. U., and R. D. Seppelt. "Snow algae of the Windmill Islands, continental Antarctica. Mesotaenium berggrenii (Zygnematales, Chlorophyta) the alga of grey snow." Antarctic Science 2, no. 2 (June 1990): 143–48. http://dx.doi.org/10.1017/s0954102090000189.

Full text
Abstract:
A saccoderm desmid Mesotaenium berggrenii forma (Mesotaeniaceae) occurring as a major component of the snow algal flora is reported from the Windmill Islands region of Continental Antarctica. Stages of the life cycle of the species are illustrated. The local distribution of the species is outlined, habitat conditions described, taxonomy, reproduction and survival strategies discussed. Morphological and nuclear size classes indicate the possibility of polyploidy in the species.
APA, Harvard, Vancouver, ISO, and other styles
50

Sorokin, V. M., T. A. Yanina, and B. F. Romanyuk. "New finds of Karangat deposits in the eastern part of the Black Sea." Moscow University Bulletin. Series 4. Geology, no. 5 (December 17, 2022): 113–19. http://dx.doi.org/10.33623/0579-9406-2022-5-113-119.

Full text
Abstract:
The sections of boreholes and sediment cores in the Taman shelf area and on the Caucasian continental slope, which uncovered shallow and deep-water facies of the interglacial Karangate horizon, were studied. The shallow-water sediments include clayey and sandy-shell varieties containing stenohaline marine molluscan fauna. Deep-water sediments are represented by sapropelic and coccolithic layers with a marine flora of diatom algae and coccolithophorids.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography