Relevant bibliographies by topics / Elatostema

Academic literature on the topic 'Elatostema'

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Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Elatostema"

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Hadiah, Julisasi T., Barry J. Conn, and Christopher J. Quinn. "Infra-familial phylogeny of Urticaceae, using chloroplast sequence data." Australian Systematic Botany 21, no. 5 (2008): 375. http://dx.doi.org/10.1071/sb08041.

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Recent studies of the phylogeny of the Urticales have suggested that Cecropiaceae, at least in part, should be included within Urticaceae. To evaluate phylogenetic relationship between these two taxa, together with the consequences on tribal concepts (of the Urticaceae) of including any part of Cecropiaceae within Urticaceae, we analysed sequence variation for larger databases of both rbcL and trnL-F sequences. We conclude that the circumscription of Urticaceae needs to be broadened to include taxa of Cecropiaceae, with Urticeae here expanded to include Poikilospermum. The tribal placement of Cecropia and Coussapoa (both Cecropiaceae) remains unclear but their affinities are with the Forsskaoleeae, Parietarieae and Boehmerieae. The circumscription of Boehmerieae should be changed to exclude Myriocarpa, with the latter genus exhibiting a strong relationship with Elatostemeae. The intratribal structure of the Elatostemeae is unclear because of the uncertainty of the position of Myriocarpa, but there is a strong suggestion that the tribe consists of two sister taxa, one of Elatostemeae sensu stricto, including Elatostema and Procris, and the other consisting of Lecanthus and Pilea. It is reconfirmed that Pellionia should not be recognised as a distinct genus and is here regarded as a synonym of Procris, rather than part of the synonymy of Elatostema, as previously suggested. Boehmeria, Cypholophus and Laportea as currently circumscribed are all paraphyletic. There are three evolutionary lineages in the Urticaceae revealed by our study, namely (1) Boehmeriea–Cecropieae–Forsskaoleeae–Parietarieae, (2) Urticeae and (3) Elatostemeae.
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RODDA, MICHELE, YU-HSIN TSENG, and ALEXANDRE K. MONRO. "Two new combinations in Elatostematoides (Urticaceae) for species from Sarawak and Sumatra." Phytotaxa 464, no. 1 (October 14, 2020): 77–84. http://dx.doi.org/10.11646/phytotaxa.464.1.6.

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Based on a recently published phylogeny, Elatostematoides is monophyletic and distinct from Elatostema. As more taxa are included in the molecular phylogeny, new combinations will need to be created to accommodate in Elatostematoides species formerly in Elatostema. In the present paper we provide evidence that Elatostema hirtum belongs to Elatostematoides. New combinations in Elatostematoides for Elatostema hirtum and the similar Elatostema scandens are proposed, resulting in the first additions to the genus since 1934.
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RASINGAM, L., and K. KARTHIGEYAN. "Elatostema perryi a new name for Elatostema humile L.M. Perry (Urticaceae)." Phytotaxa 394, no. 1 (February 25, 2019): 118. http://dx.doi.org/10.11646/phytotaxa.394.1.10.

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The genus Elatostema J. R. Forst. & G. Forst. belongs to the tribe Elatostemateae Gaudich. (1830: 493) of the family Urticaceae. It is one of the largest genera in the family with c. 626 accepted names and mostly distributed from tropical to subtropical regions of Africa, Asia and Oceania (Tseng & Hu, 2015; Lin et al. 2018; Fu et al. 2019). Recently, Tseng et al. (2019) provided a new circumscription for the Elatostema S.l. based on the molecular phylogenetic studies and morphological characters. Perry (1951), while studying the New Guinean flora, described Elatostema humile L. M. Perry (1951: 378) from the Idenburg river of New Guinea. This is a later homonym of the Fijian species Elatostema humile A.C. Sm. (1942: 22) and so illegitimate according to article 53.1 of ICN (Turland et al. 2018). Therefore, a replacement name, Elatostema perryi is proposed here.
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Fu, Long-Fei, Alex Monro, Truong Van Do, Maxim S. Nuraliev, Leonid V. Averyanov, Fang Wen, Zi-Bing Xin, et al. "Checklist to the Elatostema (Urticaceae) of Vietnam including 19 new records, ten new combinations, two new names and four new synonyms." PeerJ 7 (January 10, 2019): e6188. http://dx.doi.org/10.7717/peerj.6188.

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Elatostema (Urticaceae) comprises several hundred herbaceous species distributed in tropical and subtropical Africa, Asia, Australia and Oceania. The greatest species richness occurs on limestone karst in Southeast Asia. Taxonomic revisions of Elatostema are largely out of date and contradict each other with respect to the delimitation of Elatostema and Pellionia. Most herbaria in SE Asia and worldwide contain significant amounts of unidentified material. As part of a broader revision of Elatostema in SE Asia, we present an updated checklist for Vietnam based on field visits, a review of specimens in herbaria worldwide, a review of type material and nomenclature. We recognize 77 taxa (75 species and two infraspecific taxa) of Elatostema in Vietnam, 23 of which were previously ascribed to Pellionia. Nineteen of these are new records for the country, i.e., E. attenuatoides, E. austrosinense, E. backeri, E. brunneinerve, E. crassiusculum, E. crenatum, E. fengshanense, E. glochidioides, E. malacotrichum, E. nanchuanense, E. oblongifolium, E. obtusum, E. oppositum, E. pergameneum, E. prunifolium, E. pseudolongipes, E. pycnodontum, E. salvinioides and E. xichouense. We place E. baviensis in synonymy of E. platyphyllum, E. colaniae in synonymy of E. myrtillus, P. macroceras in synonymy of E. hookerianum, and P. tetramera in synonymy of E. dissectum for the first time. Fourteen taxa (18% of all the recognized taxa) are endemic to Vietnam, which makes Elatostema one of the richest genera for endemic species in this country; this level of endemism is comparable to levels observed in Orchidaceae. Our checklist suggests that the highest diversity and endemism of Elatostema occurs in northern Vietnam, and that there is the greatest floristic similarity of northern Vietnam to SW China. The relationship among floristic regions is also investigated. We could find no records of Elatostema for 33 out of 63 provincial units of Vietnam, including all the southernmost provinces. We propose that further studies on the diversity of Elatostema in central and southern Vietnam are severely needed.
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FU, LONG-FEI, VAN TRUONG DO, FANG WEN, and He Cheng-xin. "Elatostema arcuatobracteatum (Urticaceae), a new species from Vietnam." Phytotaxa 174, no. 2 (July 9, 2014): 111. http://dx.doi.org/10.11646/phytotaxa.174.2.6.

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Elatostema arcuatobracteatum a new species from Ha Giang, Vietnam is described and illustrated and a Global Species Conservation Assessment presented. Elatostema arcuatobracteatum is most similar to E. xanthophyllum.
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Miyazawa, Mitsuo, Yuya Utsumi, and Jyunichi Kawata. "Aroma-active Compounds of Elatostema laetevirens and Elatostema umbellatum var. majus." Journal of Oleo Science 58, no. 4 (2009): 163–69. http://dx.doi.org/10.5650/jos.58.163.

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Deshmukh, Umakant B. "Elatostema chinense, a new name for Elatostema longipedunculatum (W.T.Wang) Y.H.Tseng & A.K.Monro (Urticaceae)." Kew Bulletin 76, no. 1 (March 2021): 61–62. http://dx.doi.org/10.1007/s12225-021-09925-8.

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Fu, Longfei, Alexandre K. Monro, Tiange Yang, Fang Wen, Bo Pan, Zibing Xin, Zhixiang Zhang, and Yigang Wei. "Elatostema qinzhouense (Urticaceae), a new species from limestone karst in Guangxi, China." PeerJ 9 (April 19, 2021): e11148. http://dx.doi.org/10.7717/peerj.11148.

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Elatostema qinzhouense L.F. Fu, A.K. Monro & Y.G. Wei, a new species from Guangxi, China is described and illustrated. Morphologically, E. qinzhouense is most similar to E. hezhouense from which it differs by having smaller size of leaf laminae, fewer and smaller staminate peduncle bracts, longer pistillate peduncle bracts and a larger achene. This result is supported by the molecular evidence. The phylogenetic position of the new species within Elatostema is evaluated using three DNA regions, ITS, trnH-psbA and psbM-trnD, for 107 taxa of Elatostema s.l. (including E. qinzhouense). Bayesian inference (BI) and maximum likelihood (ML) analyses each recovered the same strongly supported tree topologies, indicating that E. qinzhouense is a member of the core Elatostema clade and sister to E. hezhouense. Along with the phylogenetic studies, plastid genome and ribosomal DNA (rDNA) sequences of the new species are assembled and annotated. The plastid genome is 150,398 bp in length and comprises two inverted repeats (IRs) of 24,688 bp separated by a large single-copy of 83,919 bp and a small single-copy of 17,103 bp. A total of 113 functional genes are recovered, comprising 79 protein-coding genes, 30 tRNA genes, and four rRNA genes. The rDNA is 5,804 bp in length and comprised the 18S ribosomal RNA partial sequence (1,809 bp), internal transcribed spacer 1 (213 bp), 5.8S ribosomal RNA (164 bp), internal transcribed spacer 2 (248 bp) and 26S ribosomal RNA partial sequence (3,370 bp). In addition, the chromosome number of E. qinzhouense is observed to be 2n = 26, suggesting that the species is diploid. Given a consistent relationship between ploidy level and reproductive system in Elatostema, the new species is also considered to be sexually reproducing. Our assessment of the extinction threat for E. qinzhouense is that it is Endangered (EN) according to the criteria of the International Union for Conservation of Nature.
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Yin, Dan-Hong, Teng-Fei Huang, Zhen Lu, and Lin-Dong Duan. "A new species and a new series of Elatostema (Urticaceae) from south-western China." PhytoKeys 180 (August 3, 2021): 65–71. http://dx.doi.org/10.3897/phytokeys.180.65813.

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The new series Elatostema section Weddellia series Xingyiensia L.D. Duan & D.H. Yin (Urticaceae) is described. In addition, its new species Elatostema xingyiense L.D. Duan & D.H. Yin, endemic to Guizhou Province, is also described and illustrated with photographs. The new series is morphologically similar to series Melanocarpa W.T. Wang and series Sublinearia W.T. Wang. The new species is most similar to E. melanocarpum, E. sublineare, E. obscurinerve, E. langicuspe and E. youyangense in morphology, but can be visibly distinguished by a combination of characters, including leaf vein, male inflorescences, female inflorescences and persistent tepals.
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Naik, Mudavath Chennakesavulu, Lal Ji Singh, Gautam Anuj Ekka, and C. P. Vivek. "Addition of four species to the flora of Andaman Islands, India." Journal of Threatened Taxa 13, no. 2 (February 27, 2021): 17843–46. http://dx.doi.org/10.11609/jott.5990.13.2.17843-17846.

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Chlorophytum vestitum Baker, Elatostema cuneatum Wight, Ammannia auriculata Willd., and Christisonia siamensis Craib are being reported as new distribution records for Andaman Islands. Detailed description, distribution and photographs of live individual are provided.
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Dissertations / Theses on the topic "Elatostema"

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Hadiah, Julisasi Tri Biological Earth &amp Environmental Sciences Faculty of Science UNSW. "Systematics of Elatostema (Urticaceae)." Awarded by:University of New South Wales, 2007. http://handle.unsw.edu.au/1959.4/39207.

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Elatostema J.R.Forst. & G.Forst. (Urticaceae) is a taxonomically problematic genus of approximately 300 species that is widespread throughout the tropical, subtropical and sub-temperate regions of Africa through to SE Asia, Australasia to Polynesia. Morphological and molecular analyses were conducted to evaluate the infra-familial classification of the Urticaceae, to test the monophyly of Tribe Elatostemeae, to define generic limits of Elatostema and assess its relationship within the tribe, and to examine the current infrageneric grouping within Elatostema. Phylogenetic analyses based on choloroplast DNA sequences of rbcL and trnL-F do not provide support for the monophyly of Urticaceae, because of the position of Poikilospermum (currently Cecropiaceae) within the tribe Urticeae. Although the status of Cecropiaceae is equivocal, there is support for the inclusion of this family in the Urticaceae, with Cecropia and Coussapoa (Cecropiaceae) having close affinities to the Boehmerieae and Parietarieae. The phylogenetic position of Myriocarpa is unresolved, but is excluded from the Boehmerieae, as currently classified. The Elatostemeae is paraphyletic with Pilea placed sister to the Urticeae. Evaluation of the infrageneric classification of Elatostema, based on phylogenetic analyses of both morphological and molecular data (trn and ITS) does not support the current subgeneric classification as proposed by Schr??ter and Winkler (1935, 1936). The analyses support two main infrageneric grouping: (1) a group consisting of Elatostema subg. Pellionia and Procris, and (2) a group consisting of the remaining members of Elatostema (including E. griffithianum ??? subg. Pellionia). The molecular data are regarded as a more accurate estimate of the phylogeny than provided by morphology, with molecular data having a higher Rescaled Consistency Index on the most parsimonious trees, together with a much greater level of resolution and support than that of the morphological analyses.
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Beaman, Reed S. "Phylogeny and biogeography of Elatostema (Urticaceae) from Mount Kinabalu, Sabah, Malaysia." [Florida] : State University System of Florida, 2000. http://etd.fcla.edu/etd/uf/2000/amt2439/beaman%5Fr.pdf.

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Thesis (Ph. D.)--University of Florida, 2000.
Title from first page of PDF file. Document formatted into pages; contains ix, 264 p.; also contains graphics. Vita. Includes bibliographical references (p. 255-262).
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LE, GOUALLEC JEAN LUC. "Effets de forts eclairements sur la photosynthese de elatostema repens (urticaceae)." Paris 6, 1989. http://www.theses.fr/1989PA066303.

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Elatostema repens, plante de sous bois des forets tropicales humides de la peninsule malaise, a ete exposee a des eclairements eleves (1/3 du plein soleil) donnee de maniere continue, pour simuler l'apparition d'un chablis, ou sequencee, pour simuler les taches de lumiere. Ces expositions conduisent immediatement a une photoinhibition de la photosynthese. Celle-ci apparait selon deux phases. Durant la premiere, avant une heure d'exposition au fort eclairement, il se produit une diminution du rendement quantique independant de l'activite psii. La reparation d'une ou plusieurs proteines psii, grace a un stock de mrna protege alors mieux le psii qu'une dissipation thermique de l'energie d'excitation qui se produit egalement. La seconde phase de photoinhibition est ensuite reliee a une destruction de centres psii. Contraitement aux autres plantes precedemment etudiees, elastostema repens est sensibilisee a la photoinhibition par la presence d'oxygene. De plus, cette espece s'est revelee sensibilisee a la photoinhibition par les forts deficits hydriques foliaires. Il est conclu que, in situ, la photoinhibition doit avoir un effet negatif important lors de l'apparition de chablis mais rarement lors des taches de lumiere
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4

Tseng, Yu-Hsin, and 曾妤馨. "Systematics, biogeography and apomixis in Elatostema (Urticaceae)." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/37184703247041362563.

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博士
國立臺灣大學
生態學與演化生物學研究所
104
Elatostema (Urticaceae), consisting of about 500 species, is mainly distributed in the tropical to subtropical areas with a diversity center in tropical Asia. Elatostema has long been a taxonomically difficult group due to frequent homoplasy of morphological characters and numerous species with a wide distribution and complex sexual systems. The circumstances of generic delimitation among Elatostema, Elatostematoides, Pellionia and Procris are quite controversial, and the infrageneric grouping within Elatostema is also uncertain. A taxonomic revision of Elatostema in Taiwan was carried out based on field observation, careful examination of specimens and molecular phylogeny. The first natural hybrid in Urticaceae, E. ×hybrida, was confirmed, which is derived from natural hybridization events between E. lineolatum var. majus (♀) and E. platyphyllum (♂). So far, we recognize 15 species and one natural hybrid in Taiwan. A comprehensive phylogenetic analysis, comprising Elatostema and related Urticaceae taxa (Elatostematoides, Pellionia, and Procris), was conducted. The results showed that Elatostema s.l. can be divided into three well-supported genera: Procris, Elatostematoides and Elatostema s.a. Four strongly support subclades within Elatostema s.a. can be recognized, including Weddellia clade, Pellionia clade, Afroelatostema clade and core Elatostema clade. Homoplasy amongst the morphological characters used in this study makes it impossible to circumscribe genera using synapomorphies. Combined suites of characters, however, do enable the morphological diagnosis of Elatostema s.l. The evolutionary history of Elatostema s.a. involves in a variety of biogeographical scenarios. Two intercontinental dispersal events from Asia to Africa were identified, which are probably correlated with two warm phases peaking during Cenozoic Era, respectively. There are at least five major dispersal events within core Elatostema clade, including the two routes of origin from East Asia through Malesia to Australasia. Besides, a strong association between geography and phylogenetic relationship was recovered within Afroelatostema and core Elatostema clades, which may attribute to limited dispersal mechanism. Furthermore, limited gene flow may be an important feature in speciation and evolution in Elatostema s.a. In addition, based on previous field observation, E. cyrtandrifolium, E. oblongifolium and E. rivulare only have female individuals or female-biased species and still can produce seeds. In this study, these species are confirmed to be apomictic plants with polyploidy. The results of flow cytometric seed screen and embryogenesis further demonstrated that these species should belong to an infrequent case of obligate autonomous apomixis.
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Chang, Shao-Yu, and 張韶砡. "Studies on Propagations of Balanophora laxiflora Hemsl. and host plant Elatostema lineolatum Wight var. majus Wedd." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/43418675616224562162.

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