Begonia leipingensis (Begoniaceae), a new compound-leaved species with unique petiolule pattern from Guangxi of China

Phytotaxa ◽  
2016 ◽  
Vol 244 (1) ◽  
pp. 45 ◽  
Author(s):  
CHUN LI ◽  
LI-HUA YANG ◽  
DAI-KE TIAN ◽  
YUE CHEN ◽  
RUI-JUAN WU ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
New Taxon ◽  
Iucn Red List Categories ◽  
Molecular Phylogenetic ◽  
Red List Categories ◽  
A New Species

Begonia leipingensis D. K. Tian, L. H. Yang & C. Li (2n = 30), a new species in Begonia sect. Coelocentrum from the limestone area of Guangxi, China. B. leipingensisis is easily distinguished from any other compound-leaved species in Begonia by its large variation in petiolule number and its unique spirally-arranged petiolule pattern, which has never been seen in Begoniaceae before and rarely seen even in other angiosperm taxa. Besides having non-overlapping flowering periods, it is clearly different from B. fangii, the most morphologically similar species in the same section and with the same chromosome number. In addition to its unique petiolule pattern, B. leipingensis has longer abaxial wings, shorter internodes, and usually larger leaves, leaflets and habit. Molecular phylogenetic analysis showed that B. leipingensis formed an independent lineage belonging to Sect. Coelocentrum. Morphological and phylogenetic evidence strongly supports this species as a new taxon in Sect. Coelocentrum of Begonia. B. leipingensis was assessed to be critically endangered based on criterion outlined by IUCN Red List Categories and Criteria.

Begonia fenshuilingensis, a new species in Begonia sect. Platycentrum (Begoniaceae) from southeastern Yunnan, China

Phytotaxa ◽  
2021 ◽  
Vol 527 (4) ◽  
pp. 266-274
Author(s):  
XIN-XIN FENG ◽  
ZHI-XIAN LIU ◽  
DAN WEI ◽  
REN-KUN LI ◽  
YU-NI HUANG ◽  
...  
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Iucn Red List ◽  
Red List ◽  
Its Sequence ◽  
Similar Species ◽  
New Taxon ◽  
Iucn Red List Categories ◽  
Molecular Phylogenetic ◽  
A New Species

Begonia fenshuilingensis X.X.Feng, R.K.Li & Z.X.Liu, a new species in Begonia sect. Platycentrum (Klotzsch) A.DC. (Begoniaceae) from southeastern Yunnan, China, is here described and illustrated. It morphologically resembles B. dryadis and B. daweishanensis, but differs by its fleshy trigonous-ellipsoid capsules without wings. Molecular phylogenetic analysis of ITS sequence data supports the new species as monophyletic, and distinct from the two similar species. Due to its limited distribution, we consider the new taxon as “Vulnerable D2” (VU D2) according to the IUCN Red List Categories and Criteria.

Dimetia brevipetiolata (Spermacoceae: Rubiaceae): A new species from Guangxi, China

Phytotaxa ◽  
2020 ◽  
Vol 428 (1) ◽  
pp. 43-50
Author(s):  
YING ZHANG ◽  
GUO-BIN JIANG ◽  
RUI-JIANG WANG
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Leaf Base ◽  
Autonomous Region ◽  
Iucn Red List Categories ◽  
Molecular Phylogenetic ◽  
Red List Categories ◽  
A New Species

A new species, Dimetia brevipetiolata R. J. Wang, from Guangxi Zhuang Autonomous Region, China, is described and photographed. Morphologically, it is similar to D. scandens and D. ampliflora with respect to their terete stem, lanceolate and thick papery leaves and compound-cymose inflorescences, but differs in prostrate habit, subsessile leaves, rounded leaf base, nearly glabrous corolla, and indehiscent capsules. The molecular phylogenetic analysis revealed that D. brevipetiolata was embedded in the Dimetia clade and closely related to D. auricularia. It is evaluated as Least Concern according to IUCN Red List Categories and Criteria.

Involucrella lithophila (Rubiaceae: Spermacoceae): A new species from Guangxi, China

Phytotaxa ◽  
2020 ◽  
Vol 464 (1) ◽  
pp. 59-68
Author(s):  
MING-DENG YUAN ◽  
RUI-JIANG WANG
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Molecular Phylogenetic Analysis ◽  
Iucn Red List Categories ◽  
Leaf Veins ◽  
Molecular Phylogenetic ◽  
Red List Categories ◽  
A New Species

Involucrella lithophila from the limestone area of Guangxi, China, is described and illustrated here. It is most similar to Hedyotis kurzii and Involucrella chereevensis in having tetragonal stems, slender pedicels and loculicidally dehiscent capsules, but it differs from the former by its 3–5 (–7)-lobed stipules, heterostylous and white flowers and depressed seeds, and from the latter by its 2–4 secondary leaf veins and heterostylous flowers. The molecular phylogenetic analysis revealed that this new species was embedded in the Involucrella clade and closely related to I. chereevensis. It is evaluated as Least Concern according to IUCN Red List Categories and Criteria.

scholarly journals Primulina silaniae sp. nov. (Gesneriaceae) from the limestone area of Guizhou Province, China

PhytoKeys ◽  
2021 ◽  
Vol 185 ◽  
pp. 123-130
Author(s):  
Jin-Quan Zhang ◽  
Hong Huang ◽  
Mei-Jun Li ◽  
Mei Huang ◽  
Quan-Yuan Li ◽  
...  
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Guizhou Province ◽  
New Taxon ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Primulina silaniae X.X.Bai & F.Wen, a new species of Primulina Hance (Gesneriaceae) from the limestone area of Wangmo County, Guizhou Province, is described and illustrated. The new species is similar to P. spiradiclioides Z.B.Xin & F.Wen, but can be easily distinguished from the latter by a combination of characteristics, especially in the lateral veins of its leaf and floral shape and tube. At present, three populations in one locality of this new taxon were found, totaling about 600 mature individuals. According to the IUCN Red List Categories and Criteria (Version 3.1), the species is provisionally assessed as Vulnerable [VU D1].

Gravesia serratifolia (Melastomataceae: Sonerileae), a new species from Marojejy National Park, Madagascar

Phytotaxa ◽  
2019 ◽  
Vol 391 (2) ◽  
pp. 115
Author(s):  
FRANK ALMEDA ◽  
HERITIANA RANARIVELO
Keyword(s):  
New Species ◽  
National Park ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Gravesia serratifolia, a new species from upper elevations of Marojejy National Park in northeastern Madagascar, is herein described, illustrated, mapped, and compared with similar species. It is readily characterized by its sparingly branched habit, leaf blades coarsely serrate with a moderate to sparse lepidote indumentum on both surfaces, inflorescence of few-flowered dichasia, calyx obsolete or evident as depressed truncate undulations with prominent calyx teeth that are laterally compressed when fresh, filaments with rusty-brown glandlike indumentum, and dorso-basal staminal appendages linear-oblong and widely spreading to coiled. A conservation assessment of Vulnerable is recommended for this species based on IUCN Red List Categories and Criteria.

A new rheophytic species of Syzygium (Myrtaceae) from the lower Kunene River of Angola and Namibia

Phytotaxa ◽  
2021 ◽  
Vol 491 (4) ◽  
pp. 281-290
Author(s):  
WESSEL SWANEPOEL ◽  
VERA DE CAUWER ◽  
ABRAHAM E. VAN WYK
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Namib Desert ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
International Boundary ◽  
Red List Categories ◽  
A New Species

Syzygium kuneneense, here described as a new species, is known only from the northern part of the Namib Desert in the Kaokoveld Centre of Endemism, southwestern Angola and adjacent northwestern Namibia. These rheophytic shrubs or small trees grow among rocks on the floodplain and banks of the lower Kunene River on the international boundary between Angola and Namibia. Diagnostic characters for Syzygium kuneneense include the oblanceolate or narrowly elliptic leaves, dense flower heads and the pedicellate flowers. A comparison of some of the more prominent morphological features to differentiate between S. kuneneense and the morphologically most similar species, S. guineense, is provided. Based on IUCN Red List categories and criteria, a conservation assessment of Vulnerable (VU D1) is recommended for the new species.

scholarly journals Begonia yenyeniae (Begoniaceae), a new species from Endau Rompin National Park, Johor, Malaysia

PhytoKeys ◽  
2018 ◽  
Vol 110 ◽  
pp. 23-37
Author(s):  
Joanne Pei-Chih Tan ◽  
Sheh May Tam ◽  
Ruth Kiew
Keyword(s):  
New Species ◽  
Native Species ◽  
National Park ◽  
Iucn Red List ◽  
Peninsular Malaysia ◽  
Red List ◽  
Similar Species ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Begoniayenyeniae is a new species of horticultural value known only from the Endau Rompin National Park, Peninsular Malaysia. It is similar to Begoniarajah with which it had previously been confused in the number of tepals and leaf characters. The new species is compared with three similar species, B.foxworthyi, B.rajah and B.reginula and photographs of all four species and descriptions of B.yenyeniae and B.rajah are provided. Molecular analysis using the ndhF-rpl132 chloroplast marker confirms the four species as distinct. Amongst native species, the three variegated species, B.yenyeniae, B.rajah and B.reginula, are some of the most popular Malaysian begonias in cultivation. Based on its restricted distribution, Begoniayenyeniae, under the IUCN Red List Categories and Criteria, is assessed as Critically Endangered.

scholarly journals Begonia pseudoedulis, a new species in Begonia sect. Platycentrum (Begoniaceae) from southern Guangxi of China

PhytoKeys ◽  
2021 ◽  
Vol 182 ◽  
pp. 113-124
Author(s):  
Xin-Xin Feng ◽  
Yan Xiao ◽  
Zhi-Xian Liu ◽  
Ren-Kun Li ◽  
Dan Wei ◽  
...  
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Small Populations ◽  
Iucn Red List Categories ◽  
Monophyletic Lineage ◽  
Molecular Phylogenetic ◽  
Red List Categories ◽  
A New Species ◽  
Near Threatened

Begonia pseudoedulis, a new species in Begonia sect. Platycentrum (Klotzsch) A.DC. (Begoniaceae) from southern Guangxi of China, is here described and illustrated. It morphologically resembles B. edulis H.Lév. and B. dielsiana E.Pritz. ex Diels but differs easily by its hairy petioles and inflorescences, and red hispidulous flower tepals, ovary and capsules. The molecular phylogenetic analysis based on ITS supported that the new species was a monophyletic lineage, separating from both B. dielsiana and B. edulis. Due to its isolated distribution with several small populations, which are possibly disturbed by human activities, the species is considered as “Near Threatened” (NT) according to the IUCN Red List Categories and Criteria.

Hedyotis puberulifolia (Rubiaceae), a new species from Guangdong, China

Phytotaxa ◽  
2021 ◽  
Vol 502 (2) ◽  
pp. 160-168
Author(s):  
YI-DA XU ◽  
RUI-JIANG WANG
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Guangdong Province ◽  
Iucn Red List ◽  
Red List ◽  
Congeneric Species ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Hedyotis puberulifolia from eastern Guangdong province, China, is described and photographed here. It is clearly different from all other congeneric species by its puberulous stem, leaves, stipules, and thyrsoid inflorescence with monochaisal sub-axes. Phylogenetic analysis revealed that H. puberulifolia is closely related to the sympatric H. tenuipes. It is evaluated as Least Concern according to IUCN Red List Categories and Criteria.

scholarly journals Odontochilus putaoensis (Cranichideae, Orchidaceae), a new species from Myanmar

PhytoKeys ◽  
2018 ◽  
Vol 103 ◽  
pp. 19-26 ◽  
Author(s):  
Ye Lwin Aung ◽  
Aye Thin Mu ◽  
Xiaohua Jin
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Identification Key ◽  
Conservation Assessment ◽  
Asian Species ◽  
Iucn Red List Categories ◽  
Light Yellow ◽  
Red List Categories ◽  
A New Species

Odontochilusputaoensis, a new species of Orchidaceae, is described and illustrated from Putao Township, Kachin State, Myanmar.Odontochilusputaoensisis close toO.duplex, but can be easily distinguished from the latter by having a light yellow lip, a bisaccate hypochile with a small, erect, blade-like and emarginate callus within each sac, a mesochile with a pair of dentate-pectinate flanges and a bilobed epichile with a pair of widely diverging lobes that are erect and concave. An identification key to the Southeast Asian species ofOdontochilusand colour photographs ofO.putaoensisare provided. A preliminary conservation assessment according to the IUCN Red List Categories and Criteria is given for the new species.

Sign in / Sign up

Export Citation Format

Share Document