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题名: Three New Species of Impatiens L. from China and Vietnam: Preparation of Flowers and Morphology of Pollen and Seeds
作者: null(税玉民)1; Janssens, Steven2; Huang, Su-Hua3; Chen, Wen-Hong1; Yang, Zhi-Guo4
刊名: SYSTEMATIC BOTANY
关键词: Flower structure ; Impatiens aconitoides ; I. purpureifolia ; I. rugata ; pollen ; seed
英文摘要: The genus Impatiens (Balsaminaceae) is one of the most difficult genera for making effective herbarium specimens because of its tender and complicated flowers. The preparation of flowers is always one of the most important steps in the collections of Impatiens. The present paper demonstrates a method to prepare flowering specimens of Impatiens in the field. Examples include three new species collected from the Sino-Vietnamese border, viz. Impatiens aconitoides, I. purpureifolia, and I. rugata. The related species I. laojunshanensis, I. apalophylla, and I. clavigera are also sampled using the same preparation method. As to the three new species, their pollen grains and seeds were observed by scanning electron microscopy. Impatiens aconitoides has 4-colpate pollen grains and ovoid seeds with protrusive-type of seed coat, whereas I. purpureifolia and I. rugata have 3-colpate grains and ellipsoidal seeds with reticulate-typed seed coat. Such an integrated approach to include detailed floral characters as well as pollen and seed characters is proposed when new taxa of Impatiens are described.
出版日期: 2011-04-01
卷号: 36, 期号:2, 页码:428-439
DOI标识: 10.1600/036364411X569615
语种: 英语
ISSN号: 0363-6445
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3872
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China
2.Katholieke Univ Leuven, Lab Plant Systemat, BE-3001 Louvain, Belgium
3.Yunnan Univ, Dept Biol, Kunming 650091, Peoples R China
4.Daweishan Natl Nat Reserve, Hekou 651300, Yunnan, Peoples R China

Recommended Citation:
Shui, Yu-Min; Janssens, Steven; Huang, Su-Hua; Chen, Wen-Hong; Yang, Zhi-Guo.Three New Species of Impatiens L. from China and Vietnam: Preparation of Flowers and Morphology of Pollen and Seeds,SYSTEMATIC BOTANY,2011,36(2):428-439
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