_ 
x : 
= Variable length, a 
5 
bright violet, scarcely exceeding a line broad, pulvinately rounded, 
ClassII. CHLOROPHYCEZ (Kuetz.) Wittr. 
Order I, CONFERVOIDEZ (Ag.), Falk.- 
Famizy Il. COLEOCHATACER (Neg.), Pringsh. 
COLEOCH ETE, Bréb. 
(So named from the bristles being sheathed.) 
Articulated filaments branched, either united in a pulvinule or 
little cushion, or expanded in a flat, somewhat disc-shaped, parenchy- 
matous thallus ; cells oblong, more or less dilated in front, sometimes 
nit 0 ovin, 
ams, and form circular, closely pressed discs. The chlorophyll is 
: in Parietal plates or large granules. Some of the cells bear colourless 
_ ‘Sect bristles fixed at the base in narrow sheaths. Reproduction takes 
i by means of asexual zoogonidia and sexually-produced oospores. 
: latter do not at once produce new apes but several zoospores. 
© zoospores, which are developed in the early part of the year from 
2 Pig 18 Moneecious or dicecious. Fertilization produces one oospore 
+ : ; ‘ 
e next p 
may originate in all the vegetative cells of the Coleochetee 
tom the entire contents of the mother-cell 
rough a round hole in the cell wall. 
