Hyalotheca

Hyalotheca dissiliens ( J.E.SMITH )

Hyalotheca is an endemic freshwater genus of green algae group of ornamental algae ( Desmidiales ). It consists of a few species.

Features

The representatives form unbranched filaments of a cell number. The threads have a diameter of 9-39 microns. The cells are short cylindrical and rim hardly constricted, unique among the Desmidiales. The filaments are embedded in a common gelatinous, which is quite striking. They have a central cell nucleus, the star-shaped chloroplast is constantly axis and carries in each cell half a pyrenoid. Growth occurs by cell division within the thread.

The representatives of the genus occur in nutrient-poor bog pools in hollows and ditches of sphagnum bogs in front of partially quite frequently.

Documents

• K.-H. Linne von Berg, K. Hoef -Emden, B. Marin, M. Melkonian: The Cosmos algae leader. The main freshwater algae under the microscope. Kosmos, Stuttgart 2004, pp. 276, ISBN 3-440-09719-6