Leguminosas da Amazônia brasileira - vi. o pólen dos gêneros dussia krug. & urb. ex taub., chaetocalyx dc. e vataireopsis ducke (leg. papil.)

Abstract

The pollen grains were analyzed for size, number of openings, shape and stratification of the exine. Those of the genus Dussia are small, sub-prolate and 3-colporate, differing only in the scope and ornamentation of the exine, being circular with a finely reticulate surface in D. discolor (Benth.) Amsh. and triangular with a reticulate surface in D. tessmannii Harms. Those of the genus Chaetocalyx are also without very distinct differences, triangular in scope, prolate and 3-colporate, small with a reticulate surface in C. scandens varo pubescens (DC.) Rudd. and medium, with a finely reticulate surface in C. brasiliensis (Vog.) Benth. Those of the genus Vataireopsis are small, prolate and 3-colporate, distinguished by the endopening and the stratification of the exine: elongate, with a finely reticulate surface and a smooth roof in V. iglesiasii Ducke and circular, with a reticulate surface and a wavy roof in V. speciosa Ducke.