scholarly journals Chroesthes (Acanthaceae) in Peninsular Malaysia, including a new species from Kelantan and a new record from Terengganu

PhytoKeys ◽  
2021 ◽  
Vol 174 ◽  
pp. 127-146
Author(s):  
Siti-Munirah Mat Yunoh

Chroesthes is a small genus that includes three species from Peninsular Malaysia: Chroesthes faizaltahiriana Siti-Munirah sp. nov., C. lanceolata (T. Anderson) B.Hansen and C. longifolia (Wight) B.Hansen. Chroesthes faizaltahiriana, recently discovered in the State of Kelantan, is described and illustrated. This species is similar to the common species C. longifolia, but is distinguished mainly by its inflorescence type, calyx shape and its flowers being bright orange instead of dark purple internally. Chroesthes lanceolata is a new record for Peninsular Malaysia and has only been collected once. Following the IUCN Red List Categories and Criteria, these three species are assessed (national scale assessment) as Critically Endangered (C. faizaltahiriana and C. lanceolata) and Least Concern (C. longifolia).

Phytotaxa ◽  
2016 ◽  
Vol 282 (3) ◽  
pp. 218
Author(s):  
MANIT KIDYOO

The new species, Hoya phuwuaensis is described and illustrated. It was discovered in Phu Wua Wildlife Sanctuary, Bueng Kan Province, northeastern Thailand. Hoya phuwuaensis is similar to the widespread and common species H. caudata. Both species have prominent mottling of silver spots on the adaxial leaf surface and positively geotropic inflorescences with slender peduncles. However, the new species can be distinguished from H. caudata by its elliptic leaf with cuneate base, obovate-oblong corona lobe and triangular anther appendages.Brown, R. (1810) Prodromus Florae Novae Hollandiae et Insulae Van-Diemen, etc. Leornard Schrag, Nuremberg.Decaisne, J. (1844) Asclepiadaceae. In: Candolle, A.P. de (Ed.) Prodromus Systematis Naturalis Regni Vegetabilis 8. Fortin, Masson & Sociorum, Paris, pp. 490–665.Hooker, J.D. (1883) The Flora of British India 4. Reeve & Co., London, 780 pp.Kerr, A.F.G. (1940) Hoya flagellata Kerr. Hooker’s Icones Plantarum 35: t. 3407.IUCN Standards and Petitions Subcommittee (2016) Guidelines for using the IUCN Red List categories and criteria. Version 12. Prepared by the Standards and Petitions Subcommittee. Available from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 13 September 2016)Kerr, A.F.G. (1951) Hoya R.Br. In: Pendleton, R.L. (Ed.) Florae Siamensis Enumeratio 3 (1). Siam Society, Bangkok, pp. 35–42. Kidyoo, M. (2013) Hoya soidaoensis kidyoo, a new species of Hoya (Asclepiadaceae) from Eastern Thailand. Phytotaxa 105 (2): 45–50.         http://dx.doi.org/10.11646/phytotaxa.105.2.3Kidyoo, M. (2015) Hoya rostellata (Apocynaceae: Asclepiadoideae), a new species from Thailand. Taiwania 60 (1): 39–42.Li, P.T, Gilbert, M.G. & Stevens, W.D. (1995) Asclepiadaceae. In: Wu, Z.Y. & Raven, P.H. (Eds.) Flora of China. 16. Science Press, Beijing & Missouri Botanical Garden, St. Louis, pp.189–270.Ridley, H.N. (1923) Hoya Br. In: Ridley, H.N. (Ed.) The Flora of the Malay Peninsula 2. Reeve & Co., London, pp. 393–402.Rintz, R.E. (1978) The Peninsular Malaysian species of Hoya (Asclepiadaceae). Malaysian Nature Journal 30: 467–522.Rodda, M. & Simonsson Juhonewe, N. (2011) Hoya mappigera (Apocynaceae, Asclepiadoideae), a new campanulate flowered species from Peninsular Malaysia and southern Thailand. Feddes Repertorium 122: 1–7.         http://dx.doi.org/10.1002/fedr.201100019Rodda, M. & Ang, W.F. (2012) Hoya caudata Hook.f. (Apocynaceae), A new record for Singapore, and keys to the Hoya species of Singapore. Nature in Singapore 5: 123–128.Schlechter R. (1916) Neue Asclepiadaceen von Sumatra und Celebes. Beihefte zum Botanischen Centralblatt 34: 1–18.Thaithong, O. (1995) The genus Hoya in Thailand. In: Kiew, R. (Ed.) The Taxonomy and Phytochemistry of the Asclepiadaceae in Tropical Asia. University Pertanian, Malaysia, pp. 83–94.Wanntorp, L., Kocyan, A., van Donkelaar, R. & Renner, S.S. (2006) Towards a monophyletic Hoya (Marsdenieae, Apocynaceae): Inferences from the chloroplast trnL region and the rbcL-atpB spacer. Systematic Botany 31: 586–596.             http://dx.doi.org/10.1600/036364406778388593


PhytoKeys ◽  
2018 ◽  
Vol 110 ◽  
pp. 23-37
Author(s):  
Joanne Pei-Chih Tan ◽  
Sheh May Tam ◽  
Ruth Kiew

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.


Phytotaxa ◽  
2017 ◽  
Vol 298 (2) ◽  
pp. 134
Author(s):  
R. C. K. CHUNG ◽  
E. SOEPADMO

A new species, Brownlowia latifiana (Malvaceae-Brownlowioideae), endemic to Terengganu, Peninsular Malaysia, is described and illustrated. This new species has most of its morphological characters that are related to those of the genus Jarandersonia. Therefore, a standard morphological taxonomic revision and morphometric analysis were carried out to assess the status of Brownlowia latifiana. Results of the morphometric analysis based on morphological characters showed that Brownlowia latifiana is embedded within the clades of Brownlowia but distanced from the clades Jarandersonia. Brownlowia formed a distinct clade in the clustering tree well separated from the Jarandersonia. A distribution map and a conservation assessment using the IUCN Red List categories and criteria are provided.


1984 ◽  
Vol 62 (4) ◽  
pp. 778-794 ◽  
Author(s):  
Christopher S. Lobban

From a study of living materials and specimens in several regional herbaria, a list has been drawn up of all the common and several of the rarer tube-dwelling diatoms of eastern Canada. Descriptions, illustrations of living material and acid-cleaned valves, and a key to the species are provided. Most specimens were from the Atlantic Provinces and the St. Lawrence estuary, but a few were from the Northwest Territories. By far the most common species is Berkeleya rutilans. Other species occurring commonly in the Quoddy Region of the Bay of Fundy, and sporadically in space and time elsewhere, arc Navicula delognei (two forms), Nav. pseudocomoides, Nav. smithii, Haslea crucigera, and a new species, Nav.rusticensis. Navicula ramosissima and Nav. mollis in eastern Canada are usually found as scattered cohabitants in tubes of other species. Nitzschia tubicola and Nz. fontifuga also occur sporadically as cohabitants.


Phytotaxa ◽  
2021 ◽  
Vol 509 (3) ◽  
Author(s):  
SHAHID NAWAZ LANDGE ◽  
RAJENDRA D. SHINDE

Ischaemum mistryi, a new species from the Sub-Tropical evergreen forest of Tilari Ghat, Maharashtra, India, is described and illustrated. This grass is unique with its leaves drooping, mostly congregated near the base, basal sheath villous, culms compressed at the base, lower glume of the sessile spikelet linear-lanceolate to oblongish tapering and slightly curled upwards, without a sub-apical ridge, nodules absent (if present 2–4 obscure) on its keels, and upper lemma of sessile spikelet bi-partite. Morphologically it is somewhat similar to I. mangaluricum, I. travancorense and I. barbatum. We provided a table of its detailed comparison with close species as mentioned above. According to IUCN Red List Categories and Criteria, we have assessed this new species as Critically Endangered (CR). The photo plates and illustration of the grass are given to facilitate its proper identification. A short discussion is also provided at the end.


PhytoKeys ◽  
2021 ◽  
Vol 185 ◽  
pp. 123-130
Author(s):  
Jin-Quan Zhang ◽  
Hong Huang ◽  
Mei-Jun Li ◽  
Mei Huang ◽  
Quan-Yuan Li ◽  
...  

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].


PhytoKeys ◽  
2021 ◽  
Vol 187 ◽  
pp. 189-205
Author(s):  
Dai-Ke Tian ◽  
Wen-Guang Wang ◽  
Li-Na Dong ◽  
Yan Xiao ◽  
Min-Min Zheng ◽  
...  

Begonia giganticaulis, a huge new species in Begonia sect. Platycentrum of Begoniaceae from southern Xizang (Tibet) of China, is described. Morphologically, it is mostly similar to B. longifolia and B. acetosella, but clearly differs from the former mainly by its dioecious and taller plants, sparse hairs on abaxial veins, longer inflorescence, unique shape of fruits, and differs from the latter mainly by its late and longer flowering time, 6-tepals of female flower and 3-loculed ovary. The phylogenetic analyses also support the separation of the new species from other taxa. Based on the current data, its conservation status is assigned to Endangered (B2a) according to the IUCN Red List Categories and Criteria.


PhytoKeys ◽  
2018 ◽  
Vol 103 ◽  
pp. 19-26 ◽  
Author(s):  
Ye Lwin Aung ◽  
Aye Thin Mu ◽  
Xiaohua Jin

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.


Phytotaxa ◽  
2019 ◽  
Vol 413 (1) ◽  
pp. 67-70 ◽  
Author(s):  
AYE THIN MU ◽  
YE LWIN AUNG ◽  
XIAOHUA JIN

Liparis popaensis, a new species of Orchidaceae, is described from Popa Mountain National Park, central Myanmar. Liparis popaensis is morphologically similar to L. odorata but it differs from the latter by having oblong-lanceolate dorsal sepal, column with two triangular wings and lip with a pair of subconical and basally adjoining calli at its base. Identification key and colour photographs are provided. A preliminary conservation assessment according to the IUCN Red List Categories and Criteria is given for the new species.


Phytotaxa ◽  
2019 ◽  
Vol 407 (1) ◽  
pp. 59-70 ◽  
Author(s):  
YI TONG ◽  
DAI-KE TIAN ◽  
JIANG-PING SHU ◽  
YAN XIAO ◽  
BING-MOU WANG ◽  
...  

Begonia yizhouensis, a new species in Begonia sect. Coelocentrum (Begoniaceae) from Guangxi of China, is described and illustrated. Morphologically, it is similar to the adjacently distributed B. luochengensis, but clearly separated by its waxy leaves with glabrous or sometimes sparsely puberulous surfaces, larger variation in leaf color and maculation along the main veins, white to pinkish-white flowers and late flowering. Furthermore, molecular phylogenetic analysis indicated B. yizhouensis was a monophyletic lineage and was sister with B. luochengensis. The relationship of the new species and other similar species is also discussed. This new species is endemic to limestone hills in Guangxi and is assessed as “Endangered” (EN) according to the IUCN Red List Categories and Criteria. Additionally, morphological and molecular evidence for B. yishanensis not being synonymous with B. porteri is presented.


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