scholarly journals Rehderodendron truongsonense (Styracaceae), a new species from Vietnam

2019 ◽  
Vol 13 (1) ◽  
pp. 157-171
Author(s):  
Wan-Yi Zhao ◽  
Peter W. Fritsch ◽  
Van Truong Do ◽  
Qiang Fan ◽  
Qian-Yi Yin ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Chloroplast Dna ◽  
Leaf Blade ◽  
Iucn Red List ◽  
Red List ◽  
Mountain Range ◽  
Chloroplast Dna Regions ◽  
A New Species ◽  
Near Threatened

Rehderodendron truongsonense, a new species from Vietnam, is described and illustrated. In the treatment of the Styracaceae for the Flore du Cambodge, du Laos, et du Viêtnam, specimens of this species were recognized as R. macrocarpum Hu. These specimens clearly differ from R. macrocarpum, however, as well as from all other species of Rehderodendron (where these characters are known) by, e.g., an evergreen versus deciduous habit, fewer secondary veins of the leaf blade, shorter inflorescences and corolla lobes, large and conspicuous lowermost bracteoles, the presence of eight ovules per carpel, and a fruit with ca. 10 to 20 ribs that are indistinct. Phylogenetic analysis based on five chloroplast DNA regions (clpP-psbB, ndhD-psaC-ndhE-ndhG, rpl22-rps19, rps18-rpl20, and psbI-trnS-GCU) placed the new species as nested within Rehderodendron and sister to R. gongshanense. This new species is endemic to the Truong Son Mountain Range, from which the epithet is derived, and we assign it an IUCN Red List preliminary status as Near Threatened.

Saxifraga shennongii, a new species of Saxifragaceae from Hunan Province, China

Phytotaxa ◽  
2019 ◽  
Vol 418 (1) ◽  
pp. 79-88
Author(s):  
JIJUN ZHANG ◽  
WANYI ZHAO ◽  
KAIKAI MENG ◽  
WENBO LIAO ◽  
LEI WANG ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Chloroplast Dna ◽  
Leaf Blade ◽  
Hunan Province ◽  
Similar Species ◽  
Basal Leaf ◽  
Chloroplast Dna Regions ◽  
A New Species

Saxifraga shennongii L. Wang, W.B. Liao et J. J. Zhang, a new species of Saxifragaceae from Hunan, China, is described and illustrated. The new species belongs to genus Saxifraga sect. Irregulares and can be distinguished from other species by stolons absent, basal leaf blade subrounded and abaxially spotted, absence of foliar embryos in the sinus, petiole sparsely short glandular pilose or glabrous and inflorescence branches up to 10 cm long. Phylogenetic analysis based on four chloroplast DNA regions (rbcL, psbA-trnH, matK and psaJ-rpl33) confirmed that the new species differed from those similar species of Saxifraga sect. Irregulares. The new species is similar to S. daqiaoensis and S. mengtzeana, but differs in indumentum and the shape of leaf.

scholarly journals Justicia thailandica, a new species of Acanthaceae from Thailand

PhytoKeys ◽  
2019 ◽  
Vol 124 ◽  
pp. 11-22
Author(s):  
Yi Tong ◽  
Yunfei Deng
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Seed Morphology ◽  
Red List ◽  
Length Ratio ◽  
A New Species ◽  
Near Threatened

A new species of Justicia (Acanthaceae), J.thailandica, is described and illustrated from Thailand. The new species belongs to Justiciasect.Harnieria and is similar to J.quadrifaria and J.championii, but differs on account of the obviously densely white indumentum in the inflorescence bracts and calyx, ovate leaf blades with margin usually entire, spathulate inflorescence bracts and length ratio of calyx to mature capsule. It is assessed to be “Near threatened” (NE) according to IUCN Red List Category and Criteria. Pollen and seed morphology characters are also reported. Species of Justiciasect.Harnieria in Thailand are discussed and a key to the three recognized species is presented.

A new grass frog with rupicolous tadpoles from northern Zambia (Anura: Ptychadenidae)

Zootaxa ◽  
2018 ◽  
Vol 4462 (3) ◽  
pp. 349
Author(s):  
ALAN CHANNING ◽  
FRANK WILLEMS
Keyword(s):  
New Species ◽  
Population Size ◽  
Dna Sequences ◽  
Iucn Red List ◽  
Red List ◽  
Advertisement Call ◽  
Limited Extent ◽  
Iucn Red List Criteria ◽  
A New Species ◽  
Near Threatened

We describe a new species of Ptychadena from Mutinondo Wilderness in northern Zambia. It has rupicolous tadpoles that develop in a film of water. The species is distinguished on morphology, advertisement call and DNA sequences from other grass frogs and was found to be most closely related to P. broadleyi. It has no contrasting longitudinal bands on the posterior thigh, the foot is longer than half SVL, it has no light triangle on the snout, three phalanges of the fourth toe free of web and the snout has no skin folds. The species should be considered Near Threatened in terms of the IUCN Red List criteria given its limited extent of occurrence and population size. 

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.

Nabalus muliensis (Asteraceae, Cichorieae), a new species from China

Phytotaxa ◽  
2019 ◽  
Vol 416 (4) ◽  
pp. 257-262 ◽  
Author(s):  
YOU-SHENG CHEN ◽  
LIAN-SHENG XU ◽  
RUI KE
Keyword(s):  
New Species ◽  
Leaf Blade ◽  
Iucn Red List ◽  
Red List ◽  
The Third ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Nabalus muliensis (Asteraceae, Cichorieae), a new species from southwestern Sichuan, China, is described and illustrated. It is the third species of Nabalus occurring in China. The new species is similar to Nabalus tatarinowii in its paniculiform inflorescence, nodding capitula, 3–5 florets, cylindric involucre, achene with unequal ribs and pale brown pappus, but differs by its yellow florets (vs. purple, white or pink), leaf blade lyrate-pinnatilobate (vs. divided with 1–3 pairs of lobes), and achenes with a 2–3 mm long beak (vs. apex truncate). The new species is considered Endangered (EN) according to the IUCN Red List Categories and Criteria.

Begonia nangunheensis, a new species of Begoniaceae from Yunnan province, China

Phytotaxa ◽  
2021 ◽  
Vol 480 (2) ◽  
pp. 201-209
Author(s):  
SHI-WEI GUO ◽  
WEN-HONG CHEN ◽  
AUNG AUNG ◽  
SIRILAK RADBOUCHOOM ◽  
JIN-CHAO ZHAO ◽  
...  
Keyword(s):  
New Species ◽  
Leaf Blade ◽  
Yunnan Province ◽  
Staminate Flower ◽  
Iucn Red List ◽  
Red List ◽  
Critically Endangered ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Begonia nangunheensis belonging to Begonia sect. Platycentrum is described and illustrated as a new species in Caryota obtusa forests in Yunnan province of China. It is similar to Begonia siamensis in 3-winged fruits, 2-loculed ovary and axile placentation with 2 segments per locule, but differs in its glabrous petiole and abaxial leaf-blade, ovate outer tepals and oblanceolate to narrowly obovate inner tepals of staminate flower, and the unequal pistillate tepals. The new species is assigned to Critically Endangered according to the guidelines of IUCN Red List Categories and Criteria (version 13).

scholarly journals Impatiens wutaishanensis (Balsaminaceae), a new species from Southeast Yunnan, China

PhytoKeys ◽  
2021 ◽  
Vol 176 ◽  
pp. 43-53
Author(s):  
Rong-Li Liao ◽  
Lei Cai ◽  
Zhi-Yong Yu ◽  
Yue-Hua Wang ◽  
Wei-Bang Sun
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Leaf Blade ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
Iucn Red List Assessment ◽  
Leaf Arrangement ◽  
Morphological Relationship ◽  
A New Species

Impatiens wutaishanensis R.L. Liao & Lei Cai, a new species from Southeast Yunnan, China, is here described and illustrated. This new species is most similar to Impatiens parvisepala S.X. Yu & Y.T. Hou in its racemose inflorescences, its four lateral sepals, the leaf arrangement, and in having yellow flowers. However, it differs in the height of the plants, the length of the petiole, the size and shape of the leaf blade, the shape of the spur, and the number of flowers in each inflorescence. A detailed description, color photographs, and a provisional IUCN red list assessment are provided, and its geographical distribution, ecology, and morphological relationship with relevant similar species are discussed.

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.

Strobilanthes hongii, a new species of Acanthaceae from Guizhou, China

Phytotaxa ◽  
2019 ◽  
Vol 388 (1) ◽  
pp. 135
Author(s):  
FENGLIN CHEN ◽  
YUNFEI DENG ◽  
ZHIBIN XIONG ◽  
JINGCHENG RAN
Keyword(s):  
New Species ◽  
Leaf Blade ◽  
Conservation Status ◽  
Pollen Grains ◽  
Iucn Red List ◽  
Red List ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Strobilanthes hongii, a new species of Acanthaceae is described and illustrated from Libo, Guizhou, China. The new species is similar to S. pateriformis and S. truncata, but differs by the characters of leaf blade, bracteole and calyx and pollen grains. The new species is plietesial and grows in forest on limestone hills. The conservation status of S. hongii is assessed as “Vulnerable (VU)” according to the 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.

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