spiraperturate
English
[edit]Adjective
[edit]spiraperturate (not comparable)
- (botany, of a pollen grain) Having an aperture that is spiral in shape.
- 1991, Armen Leonovich Takhtadzhi͡an, Evolutionary Trends in Flowering Plants, Columbia University Press, →ISBN, page 149:
- […] (spiraperturate pollen grains). Spiraperturate pollen grains are found in some liliopsids, such as Lomandra, Aphyllanthes , and Eriocaulaceae. A modified type of the spiraperturate pollen grain is observed in Baxteria […]