MORFOLOGIA DE LOS GRANOS DE POLEN DE LA SUBFAMILIA CAESALPINIOIDEAE (LEGUMINOSAE) DEL VALLE DE MEXICO

Abstract

Pollen grains of four species belonging to
Caesalpinioideae subfamily (Leguminosae) from Valley
of Mexico are studied with light and scanning electron
microscopy. The species are: Caesalpinia cacalaco H. &
B., Krameria secundi-flora DC., Senna multiglandulosa
(Jacq.) Irwin & Barneby and S. septentrionalis (Viviani)
Irwin & Barneby.
The first two species can be easyly separated by
palynological characters, which is difficult in the species
of Senna that only can be separated by means of scanning
electron microscopy observations.