Calanthe sieboldopsis (Orchidaceae, Epidendroideae, Collabieae), a new species from Luoxiao Mountains, eastern China.

Bo-Yun Yang,Bo Li,Dong-Jin Xiong,Wei-Chang Huang,Shao-Lin Tan,Huo-Lin Luo

doi:10.3897/phytokeys.145.49386

Bo-Yun Yang, Bo Li + Show 4 more

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https://doi.org/10.3897/phytokeys.145.49386

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Abstract

Calanthe sieboldopsis, a new species, is here described and illustrated from Luoxiao Mountains, Jiangxi Province, eastern China. It is morphologically similar to C. sieboldii Decne. ex Regel, but differs from the latter in having smaller flowers, longer spurs, rectangular mid-lobes with emarginate apex (vs. elliptic mid-lobes with mucronate apex), disc with 3 ridges and the proximal ends of the lateral 2 ridges enlarged with light reddish spots and minute white hairs (vs. disc with 5 ridges and 2 rows of white short hairs at base) and pollinia equal in size (vs. unequal in size). A preliminary risk-of-extinction assessment, according to the IUCN Red List Categories and Criteria, is given for the new species.

Highlights

After carefully comparing the plant with all known congeneric taxa and consulting the relevant literature, we confirm that the plant represents an undescribed new species which is described here
The locality of the new species in Jinggangshan National Nature Reserve of Jiangxi Province was revisited in April 2018 and one flowering individual was collected for the line-drawing
This species is most similar to Calanthe sieboldii in habit, gross morphology and flower colour, but differs from the latter in having smaller flowers, longer spurs (12–14 mm vs. 6–8 mm), lip mid-lobe nearly rectangular with emarginate apex, disc with 3 ridges and the proximal ends of the lateral 2 ridges enlarged with light reddish spots and minute white hairs, pollinia equal in size

Summary

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Calanthe sieboldopsis (Orchidaceae, Epidendroideae, Collabieae), a new species from Luoxiao Mountains, eastern China. Droissart | Received 13 December 2019 | Accepted 22 February 2020 | Published 10 April 2020 Citation: Yang B-Y, Luo H-L, Huang W-C, Xiong D-J, Tan S-L, Li B (2020) Calanthe sieboldopsis (Orchidaceae, Epidendroideae, Collabieae), a new species from Luoxiao Mountains, eastern China.

Introduction

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