OCHROOCOCCACE. ’ 203 
Cuass IT. PHYCOCHROMOPHYCEA. 
Plants one or many celled, living in water, or enclosed in a 
maternal jelly when out of it, mostly in families formed from 
successive generations of cells. Cell membrane (Cytioderm) 
not siliceous, combustible. Cell contents (Cytioplasm) a brown, 
olivaceous, or fuscous endochrome, destitute of nucleus, and 
usually without starch granules, 
Propagation by division, and by immovable gonidia, or 
quiescent spores. 
Orpen I, CYSTIPHORE. 
Unicellular plants. Cells spherical, oblong, or cylindrical 
enclosed in a tegument, associated in families surrounded by a 
universal tegument, immersed in a more or less liquid or firm 
mucilage, variable in colour, for the most part irregularly dis- 
posed. Division of the cells taking place in one, two, or 
three directions alternately. Propagation by quiescent gonidia, 
Fecundation unknown. 
Famrty I. CHROOCOCCACEA. 
Thallus mucous or gelatinous, amorphous, enclosing cells and 
families irregularly disposed. 
It may be urged that, as many of the species included in this family, 
as well as in the analogous Palmellacee, are only conditions of higher 
forms, they should not have been inserted. In the preparation of a Flora 
of this kind, however, we are of opinion that whilst the life history of 
these forms is so imperfectly known, we should not have been justified in 
excluding them, 
Genus 81. CHROOCOCCUS. WNiigeli. (1849.) 
Cells globose, or more or less angular from mutual pressure, 
solitary, or associated in globose cubical or amorphous families, 
free (not involved in a mother-cell). Cell membrane in most 
cases thin, homogenous, achromatic, often confluent in a more 
or less firm jelly ; cell contents verdigris, or pallid blue green, 
not rarely yellow or orange. Propagation by division alter- 
nately in three directions, 
