Pollen morphology of Polish species of the genus Ribes L.

摘要

This paper presents results of studies on pollen morphology of 6 Polish species of the genus Ribes L.(family Grossula- riaceae). Observations were carried out with LM and SEM. Pollen diagnoses were illustrated by series of microphotographs. Grains of examined species are small to medium-sized and prolate spheroidal or subprolate in shape, rarely prolate. They Represent three pollen classes: zonocolporate, pantoaperturate and pantoporate. Three types of ectoapertures have been ob- Served: colpi, pori and colpoids.