Polystichum puteicola, sp nov (sect. Haplopolystichum, Dryopteridaceae) from a karst sinkhole in Guizhou, China based on molecular, palynological, and morphological evidence

	Polystichum puteicola, sp nov (sect. Haplopolystichum, Dryopteridaceae) from a karst sinkhole in Guizhou, China based on molecular, palynological, and morphological evidence
	Zhang, Li-Bing ; He, Hai ; Luo, Qiang
刊名	BOTANICAL STUDIES
	2010
卷号	51 期号:1 页码:127-136
关键词	China Dryopteridaceae Guizhou Karst landscapes Karst sinkhole Phylogeny Polystichum obliquum Polystichum puteicola sect. Haplopolystichum Spore morphology trnL-F sequence
ISSN号	1817-406X
通讯作者	Zhang, LB, Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China
中文摘要	A new fern species, Polystichum puteicola (sect. Haplopolystichum, Dryopteridaceae), is described from a karst sinkhole in northwestern Guizhou, China. The new species is morphologically similar to P. obliquum, a species disjunctly occurring in limestone areas in Taiwan, southwestern China to the western Indo-Himalaya. Polystichum puteicola has lamina not contracted towards base (with the largest basal pinnae), petiole scales dark brown adaxially, rachis scales up to 3.6 x 0.8 mm, pinnae dark green, subcoriaceous, lustrous adaxially, and slightly repand or almost entire on margin, and microscales up to 2 x 0.5 mm. In contrast, P. obliquum has lamina with basal pinnae contracted, scales of petiole brown adaxially, scales of rachis up to 2.3 x 0.5 mm, pinnae green, chartaceous, matt adaxially, and serrulate oil margin, and microscales 0.2-0.5 x 0.1-0.2 mm. Most interestingly, the two species differs in seven positions in the DNA sequences of chloroplast trnL-F intergenic spacer. Our phylogenetic analysis shows that the two species are even not closely related. Palynologically, P. puteicola has cristate sculpture with numerous spinules oil its perispore. Features of the new species in geographical distribution, ecology, spore morphology, and trnL-F Sequence are given. Conservation assessments are also presented following the IUCN guidelines.
学科主题	Plant Sciences
收录类别	SCI
语种	英语
公开日期	2011-07-08
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/22534]
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,Luo, Qiang. Polystichum puteicola, sp nov (sect. Haplopolystichum, Dryopteridaceae) from a karst sinkhole in Guizhou, China based on molecular, palynological, and morphological evidence[J]. BOTANICAL STUDIES,2010,51(1):127-136.
APA	Zhang, Li-Bing,He, Hai,&Luo, Qiang.(2010).Polystichum puteicola, sp nov (sect. Haplopolystichum, Dryopteridaceae) from a karst sinkhole in Guizhou, China based on molecular, palynological, and morphological evidence.BOTANICAL STUDIES,51(1),127-136.
MLA	Zhang, Li-Bing,et al."Polystichum puteicola, sp nov (sect. Haplopolystichum, Dryopteridaceae) from a karst sinkhole in Guizhou, China based on molecular, palynological, and morphological evidence".BOTANICAL STUDIES 51.1(2010):127-136.