Thursday, October 12, 2023

[Botany • 2023] Habenaria qinghaiensis (Orchidaceae: Orchidoideae: Orchideae) • A New Species from Qinghai Province, China


Habenaria qinghaiensis X.H. Jin & C.B. Ma,

in Ma, Wamg, Deng, Lin et Jin, 2023. 

Abstract
Habenaria qinghaiensis, a new species of Orchidaceae from Qinghai Province, is described and illustrated. Molecular phylogenetic analysis based on nuclear ITS (nrITS) and two plastid (matK and rbcL) DNA markers indicates that H. qinghaiensis belongs to H. josephi group (sect. Diphyllae s.l.). It is morphologically similar to H. josephi and H. tibetica, but differs from the former by having petals shallowly 2-lobed at base, lateral lobes of lip 1.8–2.2 cm long, lip with cushion-like appendage at entrance of spur, and from the latter by having almost glabrous bracts, petals and ovary, lip with cushion-like appendage at entrance of spur, and three stigmas.

Keywords: Habenaria qinghaiensis, orchid taxonomy, Flora, Monocots



 Plants of Habenaria qinghaiensis X.H. Jin & C.B. Ma, sp. nov.
A. Lateral view of inflorescence; B. Front view of inflorescence; C. Leaves; D. Front view of flower; E. Front view of column, showing thickened callus at the entrance of spur; F. Front view of column; G. Lateral view of column; H. Column, adaxial view; I. Lateral view of flower; J. Spur and ovary; K. Ovary; L. Tepals and lip; M. Pollinia; N. Petal; O. Dorsal sepal; P. Lateral sepal.
Photographed by Xiaohua Jin and Chongbo Ma.


Chong-Bo Ma, Han-Chen Wamg, Tan Deng, Peng-Chen Lin and Xiao-Hua Jin. 2023. A New Species of Habenaria (Orchidaceae, Orchideae) from Qinghai Province, China. Phytotaxa. 583(3); 260–268. DOI: 10.11646/phytotaxa.583.3.4

青海玉凤花
兰科玉凤花属Habenaria是地生兰科植物种类最丰富的属之一,包含约800种地生和部分附生种类,主要分布于亚洲、非洲、北美洲和南美洲热带和亚热带地区,部分种类分布到温带和高山地区。我国已知分布约70种。 

中国科学院植物研究所金效华研究组在青海省开展兰科调查时,发现了一种新的玉凤花属植物,命名为青海玉凤花(Habenaria qinghaiensis)。
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