Taiwania

A new hybrid for genus 𝘊𝘺𝘮𝘣𝘪𝘥𝘪𝘶𝘮 in China: 𝘊𝘺𝘮𝘣𝘪𝘥𝘪𝘶𝘮 ×𝘨𝘢𝘮𝘮𝘪𝘦𝘢𝘯𝘶𝘮 and its molecular evidence for taxonomic classification

Peng-Yu Wu, Zi-Yang Wang, Meng-Kai Li, Heng Yong, Zi-Han Lin, Jia-Xu Guo, Yu-Tian Zhang
Published on: 23 April 2026
Page: 403 - 412
DOI: 10.6165/tai.2026.71.403
https://taiwania.ntu.edu.tw/abstract/2184

Taiwania 2026 vol.71 no.2: pp.403-412

Abstract
A new recorded natural hybrid of 𝘊𝘺𝘮𝘣𝘪𝘥𝘪𝘶𝘮 (Orchidaceae), 𝘊. ×𝘨𝘢𝘮𝘮𝘪𝘦𝘢𝘯𝘶𝘮, from Yunnan Province, China, is illustrated and described. This taxon is documented to occur in Nepal and India, and early taxonomic literature records indicate that this taxon was proposed to have arisen from natural hybridization between 𝘊. 𝘦𝘳𝘺𝘵𝘩𝘳𝘢𝘦𝘶𝘮 and 𝘊. 𝘦𝘭𝘦𝘨𝘢𝘯𝘴. Morphologically, it exhibits a mosaic of traits from 𝘊. 𝘦𝘳𝘺𝘵𝘩𝘳𝘢𝘦𝘶𝘮 and 𝘊. 𝘦𝘭𝘦𝘨𝘢𝘯𝘴, with diagnostic differences in leaf shape, labellum color, inflorescence attachment and floral morphology. Molecular analyses based on nuclear (nrITS) DNA reveal a well-supported sister-group relationship (PP=0.94, BPML=73) between the hybrid and 𝘊. 𝘦𝘳𝘺𝘵𝘩𝘳𝘢𝘦𝘶𝘮, while plastid DNA (𝘮𝘢𝘵K and 𝘳𝘣𝘤L) phylogenies identify it as a well-supported sister taxon to 𝘊. 𝘦𝘭𝘦𝘨𝘢𝘯𝘴 (PP=0.96, BPML=59). This study provides the first maternal lineage evidence from chloroplast genes for the hybrid origin of 𝘊. ×𝘨𝘢𝘮𝘮𝘪𝘦𝘢𝘯𝘶𝘮, and validates the long-proposed parental hypothesis with a combined molecular, morphological, and ecological evidence chain, thereby enriching the diversity data of natural hybrids in 𝘊𝘺𝘮𝘣𝘪𝘥𝘪𝘶𝘮 from China.

Keyword: 𝘊𝘺𝘮𝘣𝘪𝘥𝘪𝘶𝘮 𝘦𝘭𝘦𝘨𝘢𝘯𝘴, 𝘊𝘺𝘮𝘣𝘪𝘥𝘪𝘶𝘮 𝘦𝘳𝘺𝘵𝘩𝘳𝘢𝘦𝘶𝘮, 𝘮𝘢𝘵K, new record, nrITS, 𝘳𝘣𝘤L

Two new species of 𝘏𝘦𝘯𝘤𝘬𝘦𝘭𝘪𝘢 Spreng. (Gesneriaceae) from Arunachal Pradesh, India

Shivam Kishwan, Tejas U. Thackeray, Navendu V. Page
Published on: 22 April 2026
Page: 394 - 402
DOI: 10.6165/tai.2026.71.394
https://taiwania.ntu.edu.tw/abstract/2183

Taiwania 2026 vol.71 no.2: pp.394-402

Abstract
Two new species of 𝘏𝘦𝘯𝘤𝘬𝘦𝘭𝘪𝘢 (Gesneriaceae), namely 𝘏𝘦𝘯𝘤𝘬𝘦𝘭𝘪𝘢 𝘧𝘭𝘢𝘷𝘪𝘧𝘭𝘰𝘳𝘢 and 𝘏. 𝘴𝘪𝘺𝘰𝘮𝘦𝘯𝘴𝘪𝘴 are described here. Detailed color plates, notes on their distribution and habitat, provisional IUCN conservation assessment are provided, along with tabular differentiation from morphologically similar species. Both these species inhabit shaded habitats along streams flowing through moist evergreen forests and are presently known only from the Eastern Himalayan Region of Arunachal Pradesh, India. 𝘏. 𝘧𝘭𝘢𝘷𝘪𝘧𝘭𝘰𝘳𝘢 is described from Kamle district, whereas 𝘏. 𝘴𝘪𝘺𝘰𝘮𝘦𝘯𝘴𝘪𝘴 is described from Shi-Yomi district.

Keyword: Conservation, Eastern Himalaya, Flora, 𝘏𝘦𝘯𝘤𝘬𝘦𝘭𝘪𝘢 𝘧𝘭𝘢𝘷𝘪𝘧𝘭𝘰𝘳𝘢, 𝘏𝘦𝘯𝘤𝘬𝘦𝘭𝘪𝘢 𝘴𝘪𝘺𝘰𝘮𝘦𝘯𝘴𝘪𝘴, North East India, Taxonomy

𝘈𝘴𝘱𝘪𝘥𝘪𝘴𝘵𝘳𝘢 𝘩𝘶𝘢𝘴𝘩𝘶𝘪𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴 (Asparagaceae), a new species from Guangdong, China
Yi-Hua Tong, Shu-Yan Chen, Hai-Jian Huang, Yuan-Qiu Li, Xin-Yu Wan, Chun-Rui Lin
Published on: 20 April 2026
Page: 390 - 393
DOI: 10.6165/tai.2026.71.390
https://taiwania.ntu.edu.tw/abstract/2182

2026 vol.71 no.2: pp.390-393

Abstract
𝘈𝘴𝘱𝘪𝘥𝘪𝘴𝘵𝘳𝘢 𝘩𝘶𝘢𝘴𝘩𝘶𝘪𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴, a new species from Guangdong Province, China, is described and illustrated. It is similar to 𝘈. 𝘥𝘢𝘲𝘪𝘯𝘨𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴 in shape and color of leaves and flowers, but can be distinguished by urceolate perianth tube, perianth lobes suberect or slightly recurved, purplish red, ovate-triangular, acuminate or obtuse at apex, and upper surface of stigma with dense small papillae. The new species is currently only known from the type locality in northern Guangdong. Detailed colour plates and data on morphology, ecology, phenology and distribution of the new species are also provided.

Keyword: 𝘈𝘴𝘱𝘪𝘥𝘪𝘴𝘵𝘳𝘢 𝘥𝘢𝘲𝘪𝘯𝘨𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴, 𝘈𝘴𝘱𝘪𝘥𝘪𝘴𝘵𝘳𝘢 𝘵𝘳𝘪𝘳𝘢𝘥𝘪𝘢𝘵𝘢, Huashuishan City-level Nature Reserve, new taxon

Species diversity, biomass and carbon stock of Arroceros Forest Park: An urban green space in Manila, Philippines

Maribel B. Cruz, Clarence A. Hubilla, Ryle Paolo M. Frianeza, Jamil Salem J. Isip, Adream Michael M. Quintos, Mario A. Cudiamat
Published on: 16 April 2026
Page: 373 - 389
DOI: 10.6165/tai.2026.71.373
https://taiwania.ntu.edu.tw/abstract/2181

Taiwania 2026 vol.71 no.2: pp.373-389

Abstract
The Arroceros Forest Park (AFP), an urban green space in Manila, Philippines, is widely considered the “last lung” of Metro Manila. This study assessed the park’s tree species diversity, biomass, carbon stock, and the carbon dioxide mitigation value using a non-destructive tree sampling method. A total of 264 individual trees representing 19 species across 14 families were recorded. 𝘚𝘸𝘪𝘦𝘵𝘦𝘯𝘪𝘢 𝘮𝘢𝘤𝘳𝘰𝘱𝘩𝘺𝘭𝘭𝘢, a non-native species, was the most dominant, exhibiting the highest importance value index (IVI) and contributing most to the total biomass and carbon storage. 𝘈𝘤𝘢𝘤𝘪𝘢 𝘢𝘶𝘳𝘪𝘤𝘶𝘭𝘪𝘧𝘰𝘳𝘮𝘪𝘴 and 𝘗𝘵𝘦𝘳𝘰𝘤𝘢𝘳𝘱𝘶𝘴 𝘪𝘯𝘥𝘪𝘤𝘶𝘴 also showed substantial contributions, indicating that large-diameter trees influence the ecosystem-level carbon dynamics. Biodiversity indices revealed moderate species richness with uneven distribution. Simpson’s diversity was high, but Shannon’s index was lower, suggesting that few species dominate within a stable community. More than 80% of trees had a diameter at breast height exceeding 30 cm, reflecting a mature stand. The estimated total aboveground biomass was 934.95 Mg/ha and belowground biomass was 192.25 Mg/ha, totaling 1,127.20 Mg/ha. The total vegetative carbon stock was 507.24 Mg C/ha, corresponding to a CO2 equivalent of 1,861.56 Mg/ha with a potential carbon dioxide mitigation value of 4,095.42 Mg. Despite its limited areas, AFP functions as a vital urban carbon storage capacity within an intensely urbanized landscape. These findings highlight the importance of mature tree protection, maintaining existing biomass and carbon stocks while supporting biodiversity stability. The study provides baseline ecological and carbon stock data to inform evidence-based urban forest conservation planning and climate-resilient strategies in rapidly urbanizing cities.

Keyword: allometric equation, Arroceros Forest Park, carbon stock, species diversity, vegetation biomass

Two new species of 𝘎𝘭𝘰𝘣𝘣𝘢 L. (Zingiberaceae) from Myanmar

Daiki Nakano, Chit Soe Paing, Wine Myat Thwin, Mu Mu Aung, Nobuyuki Tanaka
Published on: 15 April 2026
Page: 365 - 372
DOI: 10.6165/tai.2026.71.365
https://taiwania.ntu.edu.tw/abstract/2180

Taiwania 2026 vol.71 no.2: pp.365-372

Abstract
Two new species of the genus 𝘎𝘭𝘰𝘣𝘣𝘢 (Zingiberaceae), 𝘎𝘭𝘰𝘣𝘣𝘢 𝘬𝘢𝘳𝘦𝘯𝘦𝘯𝘴𝘪𝘴 D.Nakano, Paing & Nob.Tanaka and 𝘎. 𝘸𝘪𝘯𝘺𝘢𝘸𝘦𝘯𝘴𝘪𝘴 D.Nakano, Paing, Thwin & Nob.Tanaka are described from Kayin State, Myanmar. The first species is assignable to 𝘎𝘭𝘰𝘣𝘣𝘢 section 𝘕𝘶𝘥𝘢𝘦 subsection 𝘔𝘦𝘥𝘪𝘰𝘤𝘢𝘭𝘤𝘢𝘳𝘢𝘵𝘢𝘦, and the second to subgenus Mantisia. 𝘎𝘭𝘰𝘣𝘣𝘢 𝘬𝘢𝘳𝘦𝘯𝘦𝘯𝘴𝘪𝘴 is characterized by small upright herb with bamboo-like lanceolate leaves and ellipsoid to fusiform yellow fruits. 𝘎𝘭𝘰𝘣𝘣𝘢 𝘸𝘪𝘯𝘺𝘢𝘸𝘦𝘯𝘴𝘪𝘴 is a lithophyte and characterized by obovoid to globose, green to yellow fruits. The colored plates for each species are provided. So far both of the new species are known only from eastern Myanmar.

Keyword: Burma, ginger, 𝘎𝘭𝘰𝘣𝘣𝘢 sect. 𝘕𝘶𝘥𝘢𝘦 subsect. 𝘔𝘦𝘥𝘪𝘰𝘤𝘢𝘭𝘤𝘢𝘳𝘢𝘵𝘢𝘦, 𝘎𝘭𝘰𝘣𝘣𝘢 subgenus 𝘔𝘢𝘯𝘵𝘪𝘴𝘪𝘢, Kayin State

𝘚𝘺𝘮𝘱𝘭𝘰𝘤𝘰𝘴 𝘫𝘪𝘯𝘴𝘩𝘶𝘦𝘪𝘺𝘪𝘯𝘨𝘦𝘯𝘴𝘪𝘴 (Symplocaceae), a new species from Taiwan

Chih-Chiang Wang, Wei-Yu Wang, Syuan-Yu Chen, Chih-Kai Yang
Published on: 14 April 2026
Page: 359 - 364
DOI: 10.6165/tai.2026.71.359
https://taiwania.ntu.edu.tw/abstract/2179

Taiwania 2026 vol.71 no.2: pp.359-364

Abstract
A new species of 𝘚𝘺𝘮𝘱𝘭𝘰𝘤𝘰𝘴 Jacq., 𝘚. 𝘫𝘪𝘯𝘴𝘩𝘶𝘦𝘪𝘺𝘪𝘯𝘨𝘦𝘯𝘴𝘪𝘴, found in Mt. Nandawu and Jin-shuei-ying Major Wildlife Habitat, Taiwan, is described. The new species differs from its congeners in having elliptic to ovate leaves with a long-caudate apex, fewer secondary veins (3–5 pairs), fewer-flowered inflorescences (2–5-flowered), and markedly fewer stamens (12–13). A detailed morphological description, phenology, distributional data, and photographic plates are provided, together with a key and comparative diagnostic table to distinguish it from related species.

Keyword: critically endangered (CR), Jin-shuei-ying Major Wildlife Habitat, 𝘚𝘺𝘮𝘱𝘭𝘰𝘤𝘰𝘴 𝘤𝘢𝘶𝘥𝘢𝘵𝘦, 𝘚𝘺𝘮𝘱𝘭𝘰𝘤𝘰𝘴 𝘮𝘰𝘥𝘦𝘴𝘵𝘢, Taiwan

𝘗𝘢𝘳𝘢𝘱𝘩𝘭𝘰𝘮𝘪𝘴 𝘥𝘢𝘣𝘢𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴 (Lamiaceae), a new species from the Daba Mountains in Central China

Hong-Qiang Zhang, Tian-Tian Tian, Xu Zhang, Si-Rong Yi, Ya-Ping Chen
Published on: 13 April 2026
Page: 350 - 358
DOI: 10.6165/tai.2026.71.350
https://taiwania.ntu.edu.tw/abstract/2178

Taiwania 2026 vol.71 no.2: pp.350-358

Abstract
𝘗𝘢𝘳𝘢𝘱𝘩𝘭𝘰𝘮𝘪𝘴 𝘥𝘢𝘣𝘢𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴, a new species from the subtropical evergreen broad-leaved forests of the Daba Mountains in Central China, is described and illustrated. Morphologically, 𝘗. 𝘥𝘢𝘣𝘢𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴 most resembles 𝘗. 𝘭𝘢𝘯𝘤𝘦𝘰𝘭𝘢𝘵𝘢, but differs in its persistent and longer bracteoles, densely tomentose calyces with broad-triangular and shorter teeth, as well as longer corollas. However, molecular phylogenetic reconstruction using two nuclear ribosomal DNA regions (ITS and ETS) and 80 plastid protein-coding genes indicates that 𝘗. 𝘥𝘢𝘣𝘢𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴 is sister to 𝘗. 𝘢𝘭𝘣𝘪𝘧𝘭𝘰𝘳𝘢, with the 𝘗. 𝘥𝘢𝘣𝘢𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴-𝘗. 𝘢𝘭𝘣𝘪𝘧𝘭𝘰𝘳𝘢 clade further sister to 𝘗. 𝘯𝘢𝘯𝘢. Although geographically closer to 𝘗. 𝘢𝘭𝘣𝘪𝘧𝘭𝘰𝘳𝘢 and 𝘗. 𝘯𝘢𝘯𝘢, 𝘗. 𝘥𝘢𝘣𝘢𝘴𝘩𝘢𝘯𝘦𝘯𝘴𝘪𝘴 is easily distinguished by lamina shape and indumentum, calyx indumentum and tooth morphology, and corolla color. The new species also represents the northernmost distribution of Paraphlomis in China.

Keyword: Lamioideae, Paraphlomideae, 𝘗𝘢𝘳𝘢𝘱𝘩𝘭𝘰𝘮𝘪𝘴 𝘢𝘭𝘣𝘪𝘧𝘭𝘰𝘳𝘢, 𝘗𝘢𝘳𝘢𝘱𝘩𝘭𝘰𝘮𝘪𝘴 𝘭𝘢𝘯𝘤𝘦𝘰𝘭𝘢𝘵𝘢, 𝘗𝘢𝘳𝘢𝘱𝘩𝘭𝘰𝘮𝘪𝘴 𝘯𝘢𝘯𝘢, plastome

Comparison of tree community structure in lower and upper montane forests of Mount Kampalili, Davao de Oro, Philippines

Irl Dean R. Cobias, Aileen Grace D. Delima, Cyrose Suzie Silvosa-Millado, Marion John Michael M. Achondo, Shiela Mae E. Cabrera, Sheryl Moana Marie R. Ollamina, Brian L. Pototan, Lief Erikson D. Gamalo, Aaron Froilan M. Raganas
Published on: 12 April 2026
Page: 335 - 349
DOI: 10.6165/tai.2026.71.335
https://taiwania.ntu.edu.tw/abstract/2177

Taiwania 2026 vol.71 no.2: pp.335-349
Abstract
Mount Kampalili, part of the Eastern Mindanao Biodiversity Corridor, is recognized as a Key Biodiversity Area due to its concentration of Mindanao-endemic, rare, and threatened species; however, its montane forest composition and structure remain poorly documented. This study addresses this gap by providing a comprehensive assessment of tree community structure and diversity between the lower montane forest (LMF) and upper montane forest (UMF) of Mt. Kampalili. Tree communities were surveyed using 2-km transects in each forest type, and species composition, diversity indices, importance values, and similarity patterns were analyzed. A total of 101 tree species from 42 families were recorded, including 23 Philippine endemics and 26 threatened taxa. Diversity indices revealed high species richness and evenness in both forest types (Shannon-Wiener index H′ = 3.75; Simpson’s index 1–D = 0.96; Pielou’s evenness J = 0.81), indicating a species-rich and well-structured forest community. Cluster analysis based on Bray-Curtis similarity revealed distinct separation between LMF and UMF plots, indicating clear elevational structuring of tree assemblages. Species with highest importance values (SIVs), such as 𝘋𝘢𝘤𝘳𝘺𝘤𝘢𝘳𝘱𝘶𝘴 𝘪𝘮𝘣𝘳𝘪𝘤𝘢𝘵𝘶𝘴 and 𝘓𝘪𝘵𝘩𝘰𝘤𝘢𝘳𝘱𝘶𝘴 𝘤𝘢𝘶𝘥𝘢𝘵𝘪𝘧𝘰𝘭𝘪𝘶𝘴 exhibited broad elevational distributions, suggesting ecological generalism, while several endemic and threatened taxa were restricted to specific elevation zones. These findings demonstrate that elevational gradients play a key role in shaping the tree community compositions in Mt. Kampalili and that both montane forest zones contribute distinct assemblages to overall plant biodiversity. The presence of diverse, elevation-stratified, and conservation-relevant tree communities highlights the ecological significance of Mt. Kampalili within regional forest conservation efforts.

Keyword: Mindanao biodiversity corridor, montane forests, terrestrial ecosystem, tree diversity, vegetation analysis

𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 𝘩𝘪𝘮𝘢𝘥𝘳𝘪𝘤𝘢 & Ophiorrhiza bharat (Rubiaceae), two new species from Arunachal Pradesh, India

Madhusudhan Khanal, Nirjala Khanal, Shuvadip Sarkar, Santosh Kumar Rai, Devendra Kumar
Published on: 06 April 2026
Page: 325 - 334
DOI: 10.6165/tai.2026.71.325
https://taiwania.ntu.edu.tw/abstract/2176
Taiwania 2026 vol.71 no.2: pp.325-334

Abstract
Two new species of 𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 (Rubiaceae), 𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 𝘩𝘪𝘮𝘢𝘥𝘳𝘪𝘤𝘢 M.Khanal, D.Kumar & S.Sarkar, and 𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 𝘣𝘩𝘢𝘳𝘢𝘵 M.Khanal, D.Kumar & S.Sarkar, are described and illustrated from Arunachal Pradesh, India, situated within the Eastern Himalaya Biodiversity Hotspot. 𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 𝘩𝘪𝘮𝘢𝘥𝘳𝘪𝘤𝘢 was discovered in a temperate mixed forest near Menchuka and shows morphological affinity with 𝘖. 𝘮𝘦𝘥𝘰𝘨𝘦𝘯𝘴𝘪𝘴 H. Li, whereas 𝘖. 𝘣𝘩𝘢𝘳𝘢𝘵, found in a subtropical evergreen forest near Hone village, resembles 𝘖. 𝘰𝘤𝘩𝘳𝘰𝘭𝘦𝘶𝘤𝘢 Hook.f. to some extent. Despite their superficial similarities with allied taxa, both species can be readily distinguished by a unique combination of vegetative and floral characters. Detailed morphological descriptions, diagnostic comparisons with closely related species, colour photographic plates, notes on phenology and habitat, biogeographical discussion, ecological differentiation, and preliminary conservation assessments are provided to facilitate accurate identification and to support future taxonomic and ecological research in the region.

Keyword: Heterostyly, Himalayan, 𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 𝘣𝘩𝘢𝘳𝘢𝘵, 𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 𝘩𝘪𝘮𝘢𝘥𝘳𝘪𝘤𝘢, 𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 𝘮𝘦𝘥𝘰𝘨𝘦𝘯𝘴𝘪𝘴, 𝘖𝘱𝘩𝘪𝘰𝘳𝘳𝘩𝘪𝘻𝘢 𝘰𝘤𝘩𝘳𝘰𝘭𝘦𝘶𝘤𝘢, Ophiorrhizeae

𝘖𝘹𝘺𝘵𝘳𝘰𝘱𝘪𝘴 𝘥𝘢𝘳𝘪𝘪𝘮𝘢𝘢𝘦 (Fabaceae), a new species from Khovd Province, Mongolia

Dariganga Munkhtulga, Shukherdorj Baasanmunkh, Chingis-Od Choinom, Batlai Oyuntsetseg, Gun-Aajav Bayarmaa, Jong Ho Park, Andrei I. Pyak, Hyeok Jae Choi
Published on: 05 April 2026
Page: 319 - 324
DOI: 10.6165/tai.2026.71.319
https://taiwania.ntu.edu.tw/abstract/2175

Taiwania 2026 vol.71 no.2: pp.319-324

Abstract
A new species, 𝘖𝘹𝘺𝘵𝘳𝘰𝘱𝘪𝘴 𝘥𝘢𝘳𝘪𝘪𝘮𝘢𝘢𝘦 (Fabaceae), from Sutai Mountain, Khovd Province, Mongolia is described and illustrated in this study. The new species is morphologically similar to 𝘖. 𝘴𝘶𝘵𝘢𝘪𝘤𝘢, which belongs to section 𝘝𝘦𝘳𝘵𝘪𝘤𝘪𝘭𝘭𝘢𝘳𝘦𝘴; however, it can be distinguished by several key characteristics, including peduncle length, raceme structure, leaflet size, and pod morphology. 𝘖𝘹𝘺𝘵𝘳𝘰𝘱𝘪𝘴 𝘥𝘢𝘳𝘪𝘪𝘮𝘢𝘢𝘦 was provisionally assessed as data deficient. We provide taxonomic keys and comparative plates of closely related species to facilitate identification.

Keyword: Altai Mountains, Mongolia, 𝘖𝘹𝘺𝘵𝘳𝘰𝘱𝘪𝘴 𝘴𝘶𝘵𝘢𝘪𝘤𝘢, sect. 𝘝𝘦𝘳𝘵𝘪𝘤𝘪𝘭𝘭𝘢𝘳𝘦𝘴

𝘔𝘺𝘤𝘦𝘵𝘪𝘢 𝘢𝘳𝘶𝘯𝘢𝘤𝘩𝘢𝘭𝘦𝘯𝘴𝘪𝘴 (Rubiaceae), a new species from the Eastern Himalaya, India

Madhusudhan Khanal, Dipankar Borah, Ashutosh Sharma, Shuvadip Sarkar, Devendra Kumar
Published on: 03 April 2026
Page: 314 - 318
DOI: 10.6165/tai.2026.71.314
https://taiwania.ntu.edu.tw/abstract/2174

Taiwania 2026 vol.71 no.2: pp.314-318

Abstract
A new species of 𝘔𝘺𝘤𝘦𝘵𝘪𝘢 from the dense tropical forests of Siang Valley of Arunachal Pradesh is described and illustrated. It is allied to 𝘔𝘺𝘤𝘦𝘵𝘪𝘢 𝘭𝘰𝘯𝘨𝘪𝘧𝘰𝘭𝘪𝘢 (Wall.) Kuntze, in its shrubby habit, small elliptic to oblong stipules, and a tubular corolla of nearly the same length that is villous within, but differs in its caducous stipules, large bracts, congested thyrses, deeply lobed, puberulous and lanceolate calyx lobes and glabrous corolla. The species description is accompanied by photographs, and information is provided on aspects of its distribution, phenology, ecology, and similarity to other species.

Keyword: Endemic, 𝘔𝘺𝘤𝘦𝘵𝘪𝘢 𝘭𝘪𝘴𝘵𝘦𝘳𝘪𝘪, 𝘔𝘺𝘤𝘦𝘵𝘪𝘢 𝘭𝘰𝘯𝘨𝘪𝘧𝘰𝘭𝘪𝘢, 𝘔𝘺𝘤𝘦𝘵𝘪𝘢 𝘯𝘦𝘱𝘢𝘭𝘦𝘯𝘴𝘪𝘴, 𝘔𝘺𝘤𝘦𝘵𝘪𝘢 𝘳𝘰𝘥𝘨𝘦𝘳𝘪, 𝘔𝘺𝘤𝘦𝘵𝘪𝘢 𝘴𝘵𝘪𝘱𝘶𝘭𝘢𝘵𝘦, Taxonomy