Mallomonas cyathellata sp. nov. and Mallomonas cyathellata var. kenyana var. nov. (Chrysophyceae) studied by means of scanning and transmission electron microscopy

Abstract
A new species and variety of the genus Mallomonas (Chrysophyceae, Synuraceae) are described. Specimens are from Alabama, U.S.A. (M. cyathellata) and Kenya, Africa (M. cyathellara var. kenyana).