| The genus Docidium resembles the
much bigger and commoner genus Pleurotaenium. The essential difference
is , in Docidium, the occurrence of a whorl of short, longitudinal cell
wall plications on either side of the isthmus (lacking in Pleurotaenium).
The genus Docidium numbers but a few species. The most widely
distributed species is D. baculum. In the Netherlands it has been
encountered in some oligo-mesotrophic moorland pools, but only in the beginning
of the last century. Recent observations are wanting. |
Image © Jan Šťastný
Detail of the cell isthmus. Notice the
longitudinal plications at the basis of the semicells. |
