Polystichum perpusillum (sect. Haplopolystichum, Dryopteridaceae), a new fern species from Guizhou, China

	Polystichum perpusillum (sect. Haplopolystichum, Dryopteridaceae), a new fern species from Guizhou, China
	Zhang, Li-Bing ; He, Hai
刊名	ANNALES BOTANICI FENNICI
	2012
卷号	49 页码:67-74
ISSN号	0003-3847
通讯作者	He, H (reprint author), Chongqing Normal Univ, Coll Life Sci, Chongqing 400047, Peoples R China.
产权排序	1
英文摘要	Polystichum perpusillum L.B. Zhang & H. He, a new fern species of Polystichum sect. Haplopolystichum (Dryopteridaceae), is described and illustrated from the entrance to a karst cave in southern Guizhou, China. A phylogenetic analysis based on the chloroplast trnL-F sequences shows that it is phylogenetically isolated in the section with no close relatives. Morphologically, it is similar to P. minutissimum, but P. perpusillum has an acute lamina apex, up to 12 pairs of pinnae per lamina, and deltoid-ovate or ovate-lanceolate rachis scales, while P. minutissimum has a round lamina apex, 5-8 pairs of pinnae per lamina, and subulate or linear rachis scales. Polystichum perpusillum has a granulate sculpture with verrucae on its perispore, a sculpture rare in the genus. The species is considered to be critically endangered.
学科主题	Plant Sciences
收录类别	SCI
资助信息	National Natural Science Foundation of China [31070187]; Chongqing Municipality Science and Technology commission [cstc2011jjA00006]; Open Laboratory of Ecological Restoration and Biodiversity Conservation of the Chengdu Institute of Biology; Chinese Academy of Sciences; National Geographic Society, USA
语种	英语
WOS记录号	WOS:000303272200009
公开日期	2013-07-03
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/23830]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Zhang, Li-Bing,He, Hai. Polystichum perpusillum (sect. Haplopolystichum, Dryopteridaceae), a new fern species from Guizhou, China[J]. ANNALES BOTANICI FENNICI,2012,49:67-74.
APA	Zhang, Li-Bing,&He, Hai.(2012).Polystichum perpusillum (sect. Haplopolystichum, Dryopteridaceae), a new fern species from Guizhou, China.ANNALES BOTANICI FENNICI,49,67-74.
MLA	Zhang, Li-Bing,et al."Polystichum perpusillum (sect. Haplopolystichum, Dryopteridaceae), a new fern species from Guizhou, China".ANNALES BOTANICI FENNICI 49(2012):67-74.