Pollen morphology of the genus Lycopus (Lamiaceae)

Publication Type:Journal Article
Year of Publication:2003
Authors:H. K. Moon, Hong S. P.
Journal:Annales Botanici Fennici
Date Published:Jan
Keywords:Labiatae, Lamiaceae, Lycopus, Mentheae, Pollen Morphology, Sem, Systematics, Tem

The pollen morphology of 15 species (34 specimens) of the genus Lycopus (Lamiaceae, Mentheae) was studied and documented in detail using light microscopy (LM), scanning electron (SEM), and transmission electron microscopy (TEM). The pollen is mostly medium or sometimes small in size, with a circular amb, oblate to prolate in shape, hexacolpate with granular membranes; the exine is bi-reticulate, with unbranched columellae and a continuous, lamellated endexine. The results indicate that Lycopus is stenopalynous; thus the value of pollen characters for taxonomic applications is limited. Some phylogenetic relationships with other related taxa within the tribe Mentheae are also briefly discussed.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith