The Chromosome Numbers of Some Species of the Genus Stigeoclonium Kuetz

Abstract

Six species of Stigeoclonium have been collected from nature and also grown in laboratory cultures. The chromosome numbers for six species of Stigeoclonium have been determined. They are as follows:
S. variabile (6), S. fasciculare (7), S. stagnatile (8), S. aestivale (9), S. elongatum (10), and S. amoenum var. amoenum (12)
The importance of this study in the systematic determination of the species of Stigeoclonium has been discussed.