Polystichum luteoviride (subg. Haplopolystichum; Dryopteridaceae), a new, highly endangered cave species from Guizhou, China

被引：7
作者：
Duan, Yi-Fann [1 ,2 ]
Ngan Thi Lu [3 ,4 ,5 ]
Zhang, Liang [6 ]
Zhang, Li-Bing [7 ]
机构：
[1] Nanjing Forestry Univ, Coll Biol & Environm, Int Cultivar Registrat Ctr Osmanthus, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Jiangsu, Peoples R China
[2] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Jiangsu, Peoples R China
[3] Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, POB 416, Chengdu 610041, Sichuan, Peoples R China
[4] Vietnam Acad Sci & Technol, Vietnam Natl Museum Nat, Dept Biol, 18 Hoang Quoc Viet, Hanoi, Vietnam
[5] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[6] Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
[7] Missouri Bot Garden, POB 299, St Louis, MO 63166 USA
来源：
PHYTOTAXA | 2017年 / 313卷 / 03期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Guizhou; karst cave; Polystichum luteoviride; NOV SECT. HAPLOPOLYSTICHUM; MOLECULAR EVIDENCE; KARST SINKHOLE; FERN; PHYLOGENY; GUANGXI;
D O I：
10.11646/phytotaxa.313.3.10
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
One new fern species, Polystichum luteoviride, a member of P. subg. Haplopolystichum (Dryopteridaceae), is described and illustrated from Guizhou Province in Southwest China. Polystichum luteoviride is similar to P. deflexum Ching ex W. M. Chu (1992: 47) in having crenate pinna margins, but the former has lamina yellowish green and pinnae oblong, strongly reflexed, and acute to obtuse at apex, while the latter has laminae green and pinnae lanceolate, slightly reflexed or even angled acroscopically, and acuminate at apex. Polystichum luteoviride was found inside a karst cave at an elevation of 1200 m with humid and shady conditions and is currently known from one population in Ziyun County, southern Guizhou, and is classified as Critically Endangered (CR) following IUCN Red List criteria.
引用
收藏
页码：296 / 300
页数：5
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