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Issue: Vol. 50 No. 1: 30 Dec. 2025
Type: Article
Published: 2025-12-30
DOI: 10.11646/bde.50.1.13
Page range: 92-99
Abstract views: 12
PDF downloaded: 1

New records of Orthotrichum s.l. (Orthotrichaceae, Bryophyta) in Hubei Province, a diversity center in China

State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China, China National Botanical Garden, Beijing 100093, China
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China, China National Botanical Garden, Beijing 100093, China
Shennongjia National Park Administration, Shennongjia, 442421, China, Key Laboratory of Conservation Biology of Golden monkey in Shennongjia of Hubei Province, Shennongjia, 442421, China
Shennongjia National Park Administration, Shennongjia, 442421, China, Key Laboratory of Conservation Biology of Golden monkey in Shennongjia of Hubei Province, Shennongjia, 442421, China
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China, China National Botanical Garden, Beijing 100093, China
bryophyte classification morphology Shennongjia taxonomy

Abstract

The genus Orthotrichum s.l., predominantly found in temperate regions as an epiphytic moss, boasts a large number of species and is widely distributed in China. Despite recent revisions of the genus in China, our understanding of the distribution of species remains inadequate. Over the past five years, we have examined a large number of Orthotrichum s.l. (Lewinskya and Orthotrichum s.str.) specimens from China, enriching our distribution data. We have also gathered county-level geographical information of Chinese Orthotrichum s.l. through accessible literature. Here we report seven new records for Hubei Province: Lewinskya hookeri, L. pulchra, Orthotrichum callistomum, O. pumilum, O. schofieldii, O. subpumilum, and O. vermiferum. These raise the number of Orthotrichum s.l. species known from Hubei from nine to 15, making Hubei province the fourth highest in diversity of this genus in China, after Sichuan, Xizang, and Gansu. The record of Lewinskya speciosa from Hubei is treated as doubtful because we have not yet obtained the specimens cited by previous authors. Based on the specimen data, in addition to the two known diversity centers of Orthotrichum s.l. (Hengduan and Tianshan-Altai mountain regions), we have found a third one, namely the Qinling-Daba Mts. region. Considering that literature data indicates many records in the northeast and southeast regions of China, the data from the specimens we observed is still insufficient, and new areas with high diversity will likely emerge in the future.

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