ARPHA Preprints, doi: 10.3897/arphapreprints.e90873

Hemipilia avisoides (Orchidaceae), a new species from Sichuan Province, China

Xue-Man Wang^‡, Ying Tang^§, Pei-Hao Peng^|, Hua Peng^¶

‡ College of Earth Sciences, Chengdu University of Technology, Chengdu, China§ Chengdu University of Technology, Chengdu, China| College of Tourism and Urban-rural Planning, Chengdu University of Technology, Chengdu, China¶ CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China

Corresponding author: Ying Tang ( sanxiaqutang@sina.com )

This is an open access preprint distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Citation: Wang X-M, Tang Y, Peng P-H, Peng H (2022) Hemipilia avisoides (Orchidaceae), a new species from Sichuan Province, China. ARPHA Preprints. https://doi.org/10.3897/arphapreprints.e90873

Abstract

A new orchid species, Hemipilia avisoides, is described from Songpan County, Sichuan Province, China. Morphologically, it is most similar to H. occidensichuanensis (≡ Ponerorchis limprichtii), but H. avisoides can be easily distinguished by its pendulous lateral lip lobes, the oblong middle lip lobe that is smaller than lateral lobes, the dorsal sepal that is concave at each side of central vein below middle, floral bracts that are always shorter than ovary, the leaf that is appressed to substrate and is adaxially green with white and parallel veins, and the solitary sheath at the base of stem. Floral morphology of H. avisoides is also presented by utilizing in vivo micro-CT scanning and 3D visualization.

Keywords

Arid alley, Minjiang, Orchidinae, taxonomy