The origin of three- and sixcolpate pollen grains in the lamiaceae
Open Access
- 1 January 1992
- journal article
- research article
- Published by Taylor & Francis in Grana
- Vol. 31 (1) , 49-52
- https://doi.org/10.1080/00173139209427825
Abstract
The suggestions that in the Lamiaceae 6-colpate pollen grains originate from 3-colpate ones and that this transition is connected with the transition from two-celled to three-celled male gametophytes have not been confirmed. 6-colpate pollen grains of the genus Prostanthera are reported to be two-celled. It means that similar forms of 6-colpate pollen in systematic groups of Lamiaceae with two- and three-celled gametophytes originate independently.Keywords
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