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Type: Article
Published: 2024-09-19
Page range: 109-128
Abstract views: 59
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Floristic analysis of Carex (Cyperaceae), the largest cosmopolitan genus in Yunnan, China

Yunnan Academy of Forestry and Grassland, Kunming, 650201, China. Yunnan Key Laboratory of Biodiversity of Gaoligong Mountain, Kunming, 650201, China. Gaoligong Mountain Forest Ecosystem Observation and Research Station of Yunnan Province, Kunming, 650201, China.
College of Life Sciences, Henan Normal University, Xinxiang, 453007, China.
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
Yunnan Academy of Forestry and Grassland, Kunming, 650201, China. Yunnan Key Laboratory of Biodiversity of Gaoligong Mountain, Kunming, 650201, China. Gaoligong Mountain Forest Ecosystem Observation and Research Station of Yunnan Province, Kunming, 650201, China.
Huanggang Normal University, Huanggang 438021, China.
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
East Asia endemic species flora Sino-Himalaya species level Monocots

Abstract

Through specimen examination and field investigation, we present an extensive Carex checklist for Yunnan, China. Yunnan harbors 195 Carex species, encompassing 22 new records and recently published taxa. Prof. Wu Zhengyi’s classification of Chinese seed plants into 15 area-types, widely accepted by phytogeographers for decades, serves as our framework. Type 1 families and genera, deemed cosmopolitan, are often excluded in floristic statistics due to their perceived lack of floristic indication. We analyzed the floristic characteristics of Yunnan’s Carex, particularly representative Type 1 genera, reveals a predominantly temperate nature rather than tropical. The substantial presence of species affiliated with the Sino-Himalaya area-subtype indicates a strong association with the Sino-Himalayan Forest Subkingdom. As a globally distributed genus, Carex holds significant floristic indication at the species level. This study shows the significant value of this cosmopolitan genus in floristic research. For accurate elucidation of floristic characteristics, it is imperative to conduct species-level analyses of Cosmopolitan Area-Type genera when studying the flora of a specific floristic region.

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