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题名: Pollination biology of four Pedicularis species (Scrophulariaceae) in northwestern Yunnan, China
作者: Hong, W; null(李德铢)
刊名: ANNALS OF THE MISSOURI BOTANICAL GARDEN
关键词: Bombus ; northwestern Yunnan ; Pedicularis ; pollen/ovule ratio ; pollination mechanism ; Scrophulariaceae
英文摘要: Pedicularis L (Scrophulariaccae) represents a classic example of floral morphological diversity for pollination biologists. In the species-rich areas of the Himalayas there have been few studies oil the pollination syndromes of Pedicularis, especially of the long-tubed species. In the summer and fall of 2000, the pollination biology Of four species of Pedicularis was studied in Zhongdian of northwestern Yunnan, China. The four species, foraged In three bumblebee species, possess two different corolla types: Pedicularis lutescens Franch. ex Maxim. subsp. lutescens and P densispica Franch. ex Maxim. have a short-tubed, erostrate, and nectariferous corolla type and are pollinated exclusively by Bombus friseanus Skorikov and B. lucorum Latr. workers foraging flower nectar and pollinating nototribically N P. integrifolia Hook. I. and P tricolor Hand.-Mazz. have long-tubed, rostrate, and nectarless corollas and are pollinated sternotribically by Bombus festivus Smith and B. friseanus workers hanging oil the S-shaped beak or supported by file bowl-shaped lower lips. Cross-pollination by bumblebee workers is the most important reproductive mechanism observed for these Pedicularis in Yunnan. Nectar-foraging bumblebee (queens and lepidopteran moths or butterflies were not found to pollinate any of these Pedicularis species. Otherwise, the interactions between Pedicularis and Bombus and Pollination mechanisms in northwestern Yunnan are similar to those in Japan and North America. The present study provides new evidence that the Japanese species hall evolved from Himalayan Migrants in a pattern parallel to that of North American species.
出版日期: 2005
卷号: 92, 期号:1, 页码:127-138
语种: 英语
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2797
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, Kunming Inst Bot, Lab Plant Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China

Recommended Citation:
Hong, W; Li, DZ.Pollination biology of four Pedicularis species (Scrophulariaceae) in northwestern Yunnan, China,ANNALS OF THE MISSOURI BOTANICAL GARDEN,2005,92(1):127-138
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