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学科主题: 药学
题名:
Pollen morphology and seed surface features of the genus Dactylicapnos Wall. (Papaveraceae)
作者: Tong, W; Ai, TM
关键词: Dactylicapnos ; pollen morphology ; surface feature of seed
刊名: ACTA PHYTOTAXONOMICA SINICA
发表日期: 2003-03-01
卷: 41, 期:2, 页:180-186
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
英文摘要:

Pollen grains and seed surface features of the four species in the genus Dactylicapnos Wall. (Papaveraceae) from China were studied under light microscope (LM) and scanning electron microscope (SEM). Pollen grains are usually subspheroidal in shape, and 6-pantocolpate, with the diameter being 29.2 - 50.8 mum. Although pollen grains of the four species studied have many common features, they show some interspecific differences. Depending on the difference of the species, the colpi are distinct ( D. roylei (Hook. f. et Thoms.) Hutch.), or indistinct ( D. scandens (D. Don) Hutch. and D. lichiangensis (Fedde) Hand.-Mazz.) to obscure ( D. torulosa (Hook. f. et Thorns.) Hutch.); the membrane is verrucate ( D. scandens) to tuberculate ( D. roylei, D. lichiangensis and D. toralosa), with some tubercles being united to block in pollen grains of D. roylei; the exine surface is indistinctly rugulate ( D. scandens and D. lichiangensis) to densely tuberculate ( D. torulosa). Seeds in the four species are usually black in color, and dull or lustrous, and show quite different surface features among the species. The seed surface is verrucate in D. scandens, twisted-striate in D. torulosa, densely spinulose in D. lichiangensis, and finely reticulate in D. roylei. These results are very helpful in distinguishing between the species in the genus, and support its independence as a separate genus from Dicentra Borckh.

语种: 中文
WOS记录号: WOS:000185182600003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/52779
Appears in Collections:北京大学药学院_期刊论文

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作者单位: Peking Univ, Sch Pharm, Beijing 100083, Peoples R China

Recommended Citation:
Tong, W,Ai, TM. Pollen morphology and seed surface features of the genus Dactylicapnos Wall. (Papaveraceae)[J]. ACTA PHYTOTAXONOMICA SINICA,2003,41(2):180-186.
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