Spencer.—On. the Fresh-water Alge of New Zealand. 291 
BatRacHOSPERMES. 
1. Batrachospermum moniliforme. Not uncommon. 
2. ,, pulcherrimum, H., xiv., 1. From river Esk. 
3. ,, vagum, H., lxiii., 2. From a creek on the Ruataniwha Plains. 
An. unusual specimen of this plant was given me by Mr. Hamilton, from 
the Horokiwi river. Its peculiarity consists in the development of a vast 
number of hair-like appendages, on some parts of the filament, of consider- 
able length, and forming in some’places a densely intricate matwork round 
the filament which not only obscures it but also the whorls that emanate 
from it. 
Cum TOPHORAGER. 
1. Draparnaldia tenuis, H., xi. 
2. Chetophora endiafolia, H. ix. 
is elegans, H., ix. 
9 sp. D. 
Fig. 1. 
In the species marked n. above, the filament tapers from base to apex. 
It is irregularly branched, with few ramuli. Gelatinous investment not 
apparent. Cells of the ramuli (varying from four to eight) filled with endo- 
chrome. Terminal cell broad at the base, narrowing to a not very acute 
Point, exceeding the ordinary cells three or four times in length, hyaline. 
Cells of the filament and branches as long, or twice as long, as broad. 
Antheridial cells half to a quarter as long as broad, compressed. Stipitate, 
capsular fructification was observed attached to both sporiferous and anthe- 
ridial filaments. Zoospore, the only one seen, commencing to germinate, 
quadrangular in outline, contains two large sporules, surmountec a four 
cilia, one at each angle; motile. 
ONFERVACEE. 
1. Conferva bombycina, M.D., p. 158 
” Jloccosa, M.D., pl. Vv. 
2. Cladophora crispata, H., lv. 
” glomerata, H., lvi. 
” lyallii, Hooker, Fl. N.Z. 
” sp. n. (1). : 
sp. n. (2). , 
3. Ulothrise mucosa, ence bw : 
Cladophora lyallii is deseribed by Hooker—" Handbook N. 5 . Flora,” 
hea and “Fl. N.Z. Sr ej UIE He me tio 
