Polystichum tiankengicola (Dryopteridaceae), a New Species from a Karst Sinkhole from Guizhou, China

	Polystichum tiankengicola (Dryopteridaceae), a New Species from a Karst Sinkhole from Guizhou, China
	Luo, Qiang ; Zhang, Li-Bing
刊名	NOVON
	2012
卷号	22 期号:2 页码:186-190
关键词	Alpine flora China Dryopteridaceae Guizhou IUCN Red List karst sinkhole Polystichum
ISSN号	1055-3177
通讯作者	Zhang, LB (reprint author), Missouri Bot Garden, POB 299, St Louis, MO 63166 USA.
产权排序	3
英文摘要	A new pteridophyte species, Polystichum tiankengicola Li Bing Zhang, Q. Luo & P. S. Wang (Dryopteridaceae), is described and illustrated from a high-elevational karst sinkhole from Guizhou Province in China. Morphological evidence suggests that P. tiankengicola is a member of series Basigemmifera W. M. Chu & Z. R. He in section Micropolystichum Daigobo, based on the presence of bulbils on rachis and the small habit. Polystichum tiankengicola is unique in series Basigemmifera in having a bulbil at both the base and apex of the rachis. Morphologically, the new species is most similar to P. capillipes (Baker) Diels, also of series Basigemmifera, but beyond the distinctive number of bulbils on the rachis, P. tiankengicola has a truncate lamina apex and its perispores have an echinate sculpture with irregular ridges, in contrast to P. capillipes, which has only one bulbil at the base of the rachis, an acuminate lamina apex, and perispores that have a granular sculpture. Polystichum tiankengicola is found only from the highest elevational, karst sinkhole known in China (2530 m) and is considered to be Critically Endangered (CR), based on IUCN Red List criteria.
学科主题	Plant Sciences
收录类别	SCI
资助信息	Guizhou Science and Technology Foundation [2009-2092]; Natural Science Foundation of the Department of Education of Guizhou Province [20090065]
语种	英语
WOS记录号	WOS:000312180400013
公开日期	2013-07-03
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/23803]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Luo, Qiang,Zhang, Li-Bing. Polystichum tiankengicola (Dryopteridaceae), a New Species from a Karst Sinkhole from Guizhou, China[J]. NOVON,2012,22(2):186-190.
APA	Luo, Qiang,&Zhang, Li-Bing.(2012).Polystichum tiankengicola (Dryopteridaceae), a New Species from a Karst Sinkhole from Guizhou, China.NOVON,22(2),186-190.
MLA	Luo, Qiang,et al."Polystichum tiankengicola (Dryopteridaceae), a New Species from a Karst Sinkhole from Guizhou, China".NOVON 22.2(2012):186-190.