POLLEN GRAIN STUDIES OF THE LABIATAE OF MICHIGAN
作者:
ANNH. WATERMAN,
期刊:
Webbia
(Taylor Available online 1960)
卷期:
Volume 15,
issue 2
页码: 399-415
ISSN:0083-7792
年代: 1960
DOI:10.1080/00837792.1960.10669704
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Pollen grain studies have been made of 50 species of theLabiataeoccurring naturally in Michigan and of 5 cultivated species. The characteristics of pollen grain morphology are discussed and are also summarized in a table. For a number of species, a determination has been made of nuclear content of pollen grains at anthesis. Two major morphological groups of grains have been recognized: those that are binucleate and tricolpate and those that are trinucleate and hexacolpate. This observation confirms a previous report of this condition. Variation in size and increase in number of colpi within individual plant specimens have been observed in 5 naturally occurring species. Comparaisons have been made of untreated plants with a cultivar which was irradiated or treated with colchicine. Pollen grains with more than 6 colpi also have been found to be trinucleate. A key to 49 species (based on acetylated pollen grains) has been constructed.
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