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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
DOI10.1360/aps.040099
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000229561100002
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
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
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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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