19 
S 
spores is represented. The Australian alga is also in process of 
forming swarm ” 
This species is known to occur in Europe and North America. 
Hab.: Burpengary, Dr. Thos. L. Bancroft. 
(Plate VI., Fig. 1-4.) 
8S. tenue, Kiitz. Bright-green, lubricous; filaments 4 little 
: branched, branches nearly simple ; cells equal or 2-3 times as long as 
their diameter, more or less distinctly constricted ; chlorophyllose 
ands narrow ; branchlets scattered, shortened, nearly erect, i ; 
Dr. Cooke gives the following note :—“ At first the filaments are 
enclosed, in the manner of a Chetophora, in a common, somewhat» 
definite gelatine; afterwards, on its bursting, they issue from 1t like 
onferva, but are at all times very gelatinous.”—Harvey. 
_ Prof. Moebius says :—‘“ While I have set this species down as a 
. Stigeoclonium, whose branches are not prolonged into hairs, it, never- 
* theless, in other respects possesses no characteristic pecu pert 
4 lon cells of the thickest branches are 13414 p» thick ; all the cells 
 Snger than thick, often 4-5 times as long.” : 
be This species, of which a whole series of forms is distinguished, 18 
own to occur in Europe, North America, and Mauritius. 
Hab, : Lower Freeston ‘ : 
(Plate VI e Creek, Warwick, 1893, Frank Pigram. 
, cf Fig. 5-6.) ee i ; 
> ; URONEMA, Lagh. ; ; 
s adhe paments not branched, not invested with gelatinous renee 
"ing at the base, and formed of a single series of cells; apica’ ® 
hew filaments by germination; propagation, also, by resting 
ormed by the bicriraetions of the cell contents (or originating 
ogonidia?).—De Toni, vol. i., p. 176. 
