Comparative morphology of leaf epidermis in Parnassia (Parnassiaceae) from China

doi:10.1360/aps.040099

	Comparative morphology of leaf epidermis in Parnassia (Parnassiaceae) from China
	Wu, D ; Wang, H; Lu, JM; Li, DZ
	2005-05-01
发表期刊	ACTA PHYTOTAXONOMICA SINICA
卷号	43 期号:3 页码:210-224
摘要	Epidermal characters of mature leaves in 30 species representing all the nine sections of Parnassia (Parnassiaceae) were investigated under both light microscope (LM) and scanning electron microscope (SEM). The stomata were anomocytic and existed on abaxial epidermis in all the species examined, and on the adaxial epidermis in some species. The leaf epidermal cells were usually irregular or polygonal in shape. The patterns of anticlinal walls were slightly straight, repand or sinuate. Under SEM, the inner margin of the outer stomatal rim was nearly smooth, sinuolate or sinuous, and the cuticular membrane of the leaf epidermis was striate, sometimes striate to wrinkled, occasionally granular or foveolate. Stomatal and other epidermal features in Pamassia appear to be constant within species, and thus can be used for distinguishing some species. Leaf epidermal features show that Pamassia is a quite natural genus. The previous reports that the stomata are anomocytic and occur only abaxially in Pamassia, yet occur both adaxially and abaxially in Lepuropetalon are not confirmed by this study, which, based on more extensive study, has shown that some species of Parnassia also exhibited stomata on both adaxial and abaxial sides. Evidence from leaf epidermis, together with that from floral anatomy and pollen morphology as well as biogeography, suggests that section Saxifragastrum may be heterogeneous. Pamassia delavayi should be treated as a section of its own, i.e. section Xiphosandra based on morphological, cytological and leaf epidermal data.
关键词	Parnassia Leaf Epidermis Systematic Significance
学科领域	Plant Sciences
DOI	10.1360/aps.040099
收录类别	SCI
语种	英语
WOS记录号	WOS:000229561100002
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/11169
专题	中国西南野生生物种质资源库
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Lab Biodivers & Plant Biogeog, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wu, D,Wang, H,Lu, JM,et al. Comparative morphology of leaf epidermis in Parnassia (Parnassiaceae) from China[J]. ACTA PHYTOTAXONOMICA SINICA,2005,43(3):210-224.
APA	Wu, D,Wang, H,Lu, JM,&Li, DZ.(2005).Comparative morphology of leaf epidermis in Parnassia (Parnassiaceae) from China.ACTA PHYTOTAXONOMICA SINICA,43(3),210-224.
MLA	Wu, D,et al."Comparative morphology of leaf epidermis in Parnassia (Parnassiaceae) from China".ACTA PHYTOTAXONOMICA SINICA 43.3(2005):210-224.

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