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Zhi-Zhong Li, Neng Wei, Yan Liu, Jin-Ming Chen, Guang-Wan Hu, Qing-Feng Wang
Lobelia hongiana , a new species of Campanulaceae from Guangxi, South China, is described and illustrated here. This new species is most similar to L. chinensis and L. loochooensis , but differs by its elliptic-obovate or oblanceolate leaf, 2.5-3 mm long greenish-carmine hypanthium, 5 or 6 calyx lobes, purplish-white corolla, with yellowish-green blotches at the base of lower lobes, glabrous filaments, 7-8 mm long broadly obconic capsule. Molecular phylogenetic analysis has been conducted based on ITS and two chloroplast sequences ( atpB and rbcL ) and 14 taxa in Lobelia are included...
2018: PhytoKeys
Ngoc Nguyen Van, Hung Nguyen Viet, Binh Hoang Thi, Shuichiro Tagane, Hironori Toyama, Hoang Thanh Son, Ha Tran Viet, Tetsukazu Yahara
Lithocarpus vuquangensis Ngoc & Hung is described from Vu Quang National Park, North Central Vietnam. The morphological comparison and phylogenetic analysis based on rbcL , matK and ITS provided evidence that the new species was not assignable to any of the previously known taxa in Vietnam and its surrounding countries. The description, photographs, preliminary conservation status and DNA barcode sequences are also provided for the new species.
2018: PhytoKeys
Ana Carolina Mezzonato-Pires, Michaele Alvim Milward-de-Azevedo, Cláudia Barbieri Ferreira Mendonça, Vania Gonçalves-Esteves
Passiflora subgenus Astrophea is one of the five recognised subgenera of Passiflora . Brazil presents ca. 26 species of this subgenus with the majority distributed in the Amazon Basin. During the ongoing taxonomic revision of the Brazilian species of subg. Astrophea, seven species previously unknown for the country were recorded: Passiflora amoena , P. fuchsiiflora , P. jussieui , P. ovata , P. plumosa , P. quelchii , and P. tessmannii . The new records expand the species distribution ranges, especially for P...
2018: PhytoKeys
Yun-Hong Tan, De-Rong Li, Shi-Shun Zhou, Yong-Jun Chen, Gemma L C Bramley, Bo Li
A remarkable new Premna species from Myanmar, P. grandipaniculata Y.H.Tan & Bo Li (Lamiaceae), is here described and illustrated. It differs from all known congeneric taxa by having huge complicated panicles which have tertiary branches formed by spike-like thyrses. In Premna, such a spike-like thyrse is found in P. bracteata and P. interrupta, but those species can be easily distinguished from P. grandipaniculata by their habit, indumentum, leaf size and inflorescence structure.
2018: PhytoKeys
Li-Hua Yang, Jun-Lin Chen, Fang Wen, Ming Kang
Primulina malipoensis, a new species from limestone areas around the Sino-Vietnamese border, is described and illustrated. This new species is morphologically similar to P. maguanensis and P. lungzhouensis, but obviously differs from the latter two species by its pale greenish-yellow flowers (vs. purple, with different colour patterns). The phylogenetic affinity, illustration and photographs of this new species are provided in this paper.
2018: PhytoKeys
Wen Hong Chen, Quang Hieu Nguyen, Run Zheng Chen, Tien Hiep Nguyen, Sinh Khang Nguyen, Van Tap Nguyen, Michael Möller, David J Middleton, Yu-Min Shui
Two new species of Oreocharis Benth. from Fan Si Pan, the highest mountain in Vietnam (Sa Pa) are described and illustrated. Oreocharis grandiflora W.H.Chen, Q.H.Nguyen & Y.M.Shui, is similar to O. flavida Merr. from Hainan province, China, but differs mainly by its larger and infundibuliform corolla, stamens adnate to the base of the corolla tube and stamens coherent in two pairs. The second, Oreocharis longituba W.H.Chen, Q.H.Nguyen & Y.M.Shui, is similar to O. hirsuta Barnett, endemic to northern Thailand, but mainly differs in its pubescence, coherent stamens and glabrous filaments...
2018: PhytoKeys
Xin Hong, Zhen-Long Li, Stephen Maciejewski, Fang Wen, Truong Van Do
Didymocarpus puhoatensis, a new species from Vietnam is described and illustrated with photographs. The new species is morphologically similar to D. brevicalyx and D. epithemoides, but can be easily distinguished by a combination of characters. So far, five species have been recorded in the genus Didymocarpus from Vietnam.
2018: PhytoKeys
Wen-Hong Chen, Sirilak Radbouchoom, Hieu Quang Nguyen, Hiep Tien Nguyen, Khang Sinh Nguyen, Yu-Min Shui
Since 2016, KIB (Kunming Institute of Botany) and CPC (Centre for Plant Conservation of Vietnam) have conducted several surveys in the transboundary karst regions in Northern Vietnam and Southern China and seven new species in the genus Begonia Linn. (Begoniaceae) are firstly described. Amongst them, two species, Begonia albopunctata Y.M. Shui, W.H. Chen & H.Q. Nguyen and B. erectocarpa H.Q. Nguyen, Y.M. Shui & W.H. Chen, respectively belong to section Sphenanthera with berry fruits and section Leprosae with clavate berry fruits; four species, B...
2018: PhytoKeys
Wen-Hong Chen, Xiao-Hua Jin, Yu-Min Shui
Begonia kingdon-wardii Tebbitt was rediscovered in 2014 from Myanmar after 67 years based on its last collection in 1937. Its previously unknown female flower and inaccurate morphology of leaf and ovary have been additionally described. This species belongs to Begonia sect. Sphenanthera (Hassk.) Warb. due to its dioecious habit, 3-locular ovary, berry fruits and thick placenta segments. Morphologically, it is similar to Begonia gulinqingensis S. H. Huang & Y. M. Shui in the leaf shape, placentation and fruit shape, but different in its dioecious plants, pliciform leaves, two-petalled female flowers and berry fruits...
2018: PhytoKeys
Hong-Bo Ding, Bin Yang, Shi-Shun Zhou, Ren Li, Mya Bhone Maw, Win Maung Kyaw, Yun-Hong Tan
Hedychium putaoense Y.H. Tan & H.B. Ding, a new species of Zingiberaceae from Putao, Kachin state, Northern Myanmar, is described and illustrated. It is similar to H. densiflorum Wall. and H. longipedunculatum A.R.K. Sastry & D.M. Verma, but differs by its very small bract (4-6 × 2.5-3 mm vs. 18-19 × 5-5.5 mm and ca. 11 × 7 mm, respectively), semicircle and dark red bracteole, orange flower and broadly falcate to lanceolate lateral staminodes.
2018: PhytoKeys
Ting Zhou, Xiao-Hua Jin
Neottieae comprise about 150-200 species and are distributed mainly in temperate and subtropical zones of the northern hemisphere. Mycoheterotrophy is common in Neottieae. Based on three DNA markers and a broad sampling of Neottieae, these results indicate that Neottieae is strongly supported as monophyletic and Palmorchis is sister to the remaining genera of Neottieae. Holopogon and Neottia s.s. are deeply nested within Listera. The habit of leafless mycotrophy has independently evolved at least three times in Neottieae, one in Cephalanthera, another in Neottia s...
2018: PhytoKeys
Qiang Liu, Shi-Shun Zhou, Xiao-Hua Jin, Bo Pan, Kyaw Win Maung, Myint Zyaw, Ren Li, Rui-Chang Quan, Yun-Hong Tan
Dendrobium naungmungense, a new species from Naungmung, Kachin State, North Myanmar, is described and illustrated. It is morphologically similar to D. ciliatilabellum and D. vexabile, but the epichile is oblong with three long-ciliate laminae and the column wing has significant denticulation. A preliminary risk-of-extinction assessment shows that the new species should be regarded as Critically Endangered (CR) according to the IUCN Red List Categories and Criteria.
2018: PhytoKeys
Ye Lwin Aung, Xiaohua Jin
Gastrodia kachinensis, a new species of Orchidaceae, is described and illustrated from Putao, Kachin State, Myanmar. It is morphologically similar to G. gracilis, presumably its nearest relative, but can be easily distinguished from the latter by having perianth tube with punctate outer surface, verrucose outer surface of sepal lobe, orbicular petals, ovate-elliptic lip with truncate apex and auriculate-clawed base, glabrous lip apex with a pair of twin protuberance-like lamellae and column with a pair of blade-like lateral wings and acute stelidia at apex...
2018: PhytoKeys
Bin Yang, Hong-Bo Ding, Shi-Shun Zhou, Xinxin Zhu, Ren Li, Mya Bhone Maw, Yun-Hong Tan
Aristolochia sinoburmanica Y.H.Tan & B.Yang, a new species of Aristolochiaceae from Putao, Kachin State, Myanmar, is described and illustrated. According to morphology (strongly curved perianth, 3-lobed limb, as well as 3-lobed gynostemium, anthers 6, adnate in 3 pairs to the base of gynostemium, opposite to the lobes), the species belongs to Aristolochia subgenus Siphisia. It is morphologically similar to A. faviogonzalezii, A. hainanensis, A. tonkinensis, A. saccata and A. xuanlienensis. The major differences between them are outlined and discussed...
2018: PhytoKeys
Bin Yang, Shi-Shun Zhou, Hong-Bo Ding, Ren Li, Kyaw Win Maung, Yun-Hong Tan
Trivalvaria rubra and Trivalvaria casseabriae, two new species of Annonaceae from Putao, Kachin State, Myanmar, are here described and illustrated. They are morphologically similar to T. costata and T. macrophylla. The major differences between them are outlined and discussed. A diagnostic key to the species of Trivalvaria is provided.
2018: PhytoKeys
Xiao-Hua Jin, Yun-Hong Tan, Rui-Chang Quan
No abstract text is available yet for this article.
2018: PhytoKeys
Neil Snow, Paul M Peterson, Konstantin Romaschenko, Bryan K Simon
Diplachne P. Beauv. comprises two species with C4 (NAD-ME) photosynthesis. Diplachne fusca has a nearly pantropical-pantemperate distribution with four subspecies: D. fusca subsp. fusca is Paleotropical with native distributions in Africa, southern Asia and Australia; the widespread Australian endemic D. f. subsp. muelleri; and D. f. subsp. fascicularis and D. f. subsp. uninervia occurring in the New World. Diplachne gigantea is known from a few widely scattered, older collections in east-central and southern Africa, and although Data Deficient clearly is of conservation concern...
2018: PhytoKeys
Jessica Nayara Carvalho Francisco, Lúcia G Lohmann
Pachyptera DC. is a small genus of neotropical lianas included in tribe Bignonieae (Bignoniaceae). The genus has a complicated taxonomic history but currently includes species distributed from Belize to Southern Amazon. Pachyptera is characterised by four main synapomorphies, namely, a papery peeling bark, prophylls of the axillary buds organised in a series of three, patelliform glands arranged in lines in the upper portions of the calyx and corolla tube. Furthermore, members of the genus also have stems with four phloem wedges in cross-section and conspicuous extrafloral nectaries between the interpetiolar region and at the petiole apex, although these characters are also shared with other genera of tribe Bignonieae...
2018: PhytoKeys
Alexander P Sukhorukov, Maya V Nilova, Andrey S Erst, Maria Kushunina, Cláudia Baider, Filip Verloove, Marcos Salas-Pascual, Irina V Belyaeva, Anastasiya A Krinitsina, Peter V Bruyns, Cornelia Klak
The taxonomy of perennial Sesuvium species in Africa has been poorly investigated until now. Previously five perennial species of Sesuvium were recognised in Africa (S. congense, S. crithmoides, S. mesembryanthemoides, S. portulacastrum, and S. sesuvioides). Based on the differing number of stamens, S. ayresii is accepted here as being distinct from S. portulacastrum. Field observations in Angola also led the authors to conclude that S. crystallinum and S. mesembryanthemoides are conspecific with S. crithmoides...
2018: PhytoKeys
Xiaojuan Li, Jianxiu Li, Fanyun Meng
Hypodematium confertivillosum J.X.Li, F.Q.Zhou & X.J.Li, sp. nov., a new species of Hypodematium from Shandong, China, is described and illustrated. It is similar to H. crenatum (Forssk.) Kuhn & Decken and H. glanduloso-pilosum (Tagawa) Ohwi, but differs greatly from them by its abaxial fronds sparsely covered with rod-shaped glandular hairs, its adaxial fronds without rod-shaped glandular hairs and spore reniform, with verrucate processes, surface with distinct finely lamellar rugae ornamentation. The description, photographs and a key to H...
2018: PhytoKeys
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