Pantoporate pollen in the Asteraceae (Vernonieae)

By

Robinson, Harold Ernest, 1932-
Skvarla, John

Type

Article

Date of Publication

2014

Original Publication

Journal of Hymenoptera research

Volume

38

Pages

1-13

Subjects

Asteraceae , Compositae , Oocephala , pantoporate pollen , Polydora

Contributed by

Pensoft Publishers

Language

English

Published by

Washington, D.C International Society of Hymenopterists

Identifiers

DOI: https://doi.org/10.3897/phytokeys.38.7495

 

Abstract

Pantoporate pollen, which occurs sporadically in the Monocots and Dicots, has now been found in Asteraceae in two apparently related genera of the tribe Vernonieae, Polydora Fenzl and Oocephala H.Rob. Disposition of pores in Polydora seems more asymmetric than in Oocephala. Based on the known relationships within the Vernonieae, some conjectures are made regarding development of the pantoporate condition in the group.