344 



Myxophycece 



which varies much in its consistency. It may be firm and lamellose, 

 or very hyaline and diffluent. The cells often contain red, orange, 

 or violet pigments. 



Reproduction has been observed in a few species to take place 

 by the formation of non-motile spores or gonidia within a goni- 

 dangium. 



There are two sub-families : 



Sub-family I. Chroocystece. Epiphytes on larger Algae, with a 

 well-defined dorsiventrality. 



Sub-family II. Chroococcece. Free-floating or forming a gelatinous 

 stratum, with no dorsiventrality. 



Sub-family I. CHROOCYSTE^. 



This sub-family includes only a single genus, the plants of 

 which .differ from the rest of the Chroococcacese in being epiphytic, 

 and in the possession of distinct upper and lower surfaces. They 

 are likewise characterized by the possession of prominent bristles. 



Genus Gloeochsete Lagerh., 1883. [Schrammia Dangeard, 

 1889.] The cells are globose or sub-globose, enveloped in a wide 



Fig. 160. Glceochcete Wittrockiana Lagerh. A, from Cray Moss, W. Yorks. ; 

 B, from Pilmoor, N. Yorks. ( x 416). 



mucous coat, and they occur singly, or in twos or fours, attached 

 to larger filamentous Algae. More rarely they are attached to the 



