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A Taxonomic Revision of Fern Genus Pseudocyclosorus (Thelypteridaceae) from China and the Pan-Himalaya Region, with Special Reference to the Identity of Pseudocyclosorus stramineus
Li, Zhong-Yang; Zhang, Xian-Chun; Liang, Zhen-Long; Li, Jie5
2019
Source PublicationPHYTOTAXA
ISSN1179-3155
Volume424Issue:4Pages:197-216
Abstract

The fern genus Pseudocyclosorus (Thelypteridaceae) from China and the Pan-Himalaya region is revised based on morphological study. Reduced basal pinnae, angles between costule and costae, and glands/hairs on abaxial surfaces/ indusia are considered as the most diagnostic morphological characters for species delimitation. Genus Trigonospora was excluded from genus Pseudocyclosorus. This segregation is supported by multiple morphological features. Eight species were recognized here, namely Pseudocyclosorus tylodes, P. pseudofalcilobus, P. falcilobus, P. subochthodes, P. stramineus, P. ornatipes, P. esquirolii and P. canus. Twenty-one names were reduced as new synonyms. One name (P duclouxii) was considered a dubious species. A key to these eight species, their descriptions, spore morphology and distribution map of each species are given. Pseudocyclosorus stramineus was a long overlooked species, which has always been misidentified as other similar species, and was wrongly reduced as a synonym of P. duclouxii. Here based on morphology characters, the identity of P. stramineus as a species was reclaimed. A more detailed description with photographs and illustrations, and its whole distribution range are given here.

KeywordEupolypods II Trigonospora spores
Subject AreaPlant Sciences
DOI10.11646/phytotaxa.424.4.1
Indexed BySCI
Language英语
WOS IDWOS:000498919100001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11546
Collection植物系统与保护生物学研究组
Affiliation1.Gannan Normal Univ, Coll Life Sci, Ganzhou 341000, Jiangxi, Peoples R China
2.Gannan Normal Univ, Nanling Herbarium GNNU, Ganzhou 341000, Jiangxi, Peoples R China
3.Chinese Acad Sci, State Key Lab Systemat & Evolutionary Bot, Inst Bot, Beijing 100093, Peoples R China
4.Yunnan Univ, Coll Life Sci, Kunming 650091, Yunnan, Peoples R China
5.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
6.Yunnan Univ Finance & Econ, Sch Urban & Environm, Kunming 650221, Yunnan, Peoples R China
Recommended Citation
GB/T 7714
Li, Zhong-Yang,Zhang, Xian-Chun,Liang, Zhen-Long,et al. A Taxonomic Revision of Fern Genus Pseudocyclosorus (Thelypteridaceae) from China and the Pan-Himalaya Region, with Special Reference to the Identity of Pseudocyclosorus stramineus[J]. PHYTOTAXA,2019,424(4):197-216.
APA Li, Zhong-Yang,Zhang, Xian-Chun,Liang, Zhen-Long,&Li, Jie.(2019).A Taxonomic Revision of Fern Genus Pseudocyclosorus (Thelypteridaceae) from China and the Pan-Himalaya Region, with Special Reference to the Identity of Pseudocyclosorus stramineus.PHYTOTAXA,424(4),197-216.
MLA Li, Zhong-Yang,et al."A Taxonomic Revision of Fern Genus Pseudocyclosorus (Thelypteridaceae) from China and the Pan-Himalaya Region, with Special Reference to the Identity of Pseudocyclosorus stramineus".PHYTOTAXA 424.4(2019):197-216.
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