A palynotaxonomic study of the genusTrollius(Ranunculaceae)
作者:
Sangtae Lee,
Stephen Blackmore,
期刊:
Grana
(Taylor Available online 1992)
卷期:
Volume 31,
issue 2
页码: 81-100
ISSN:0017-3134
年代: 1992
DOI:10.1080/00173139209430728
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Pollen of 29Trolliusspecies was investigated with light and scanning electron microscopy. The grains are suboblate to prolate, circular in outline in polar view, (2)3(5)‐colpate, striate or striato‐rugulate. Three pollen types are recongnised: (1)T. acaulis‐typcincludingT. acaulis, T. lilacinus, T. afghanicus, T. chartosepalus, andT. laxusis characterized by a roughly striate or striato‐rugulate surface, granulate colpus membranes, and generally larger grain size, (2)T. chosenensis‐typeincluding only this species is characterized by a roughly striate surface, gemmate colpus membranes, and large grain size; and (3)T. europaeus‐type including most of the species is characterized by a finely striate surface, shortly echinate colpus membrane, and generally smaller grains. The sectional system of Dofoszewska (1974) is compared with the groups suggested by the palynological results and it is proposed that it should be amended.
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