7 
“Only rarely do these branches bear upon them even those of the 
second rank. They are thickly covered with spore-branchlets gene- 
rally from their base, or at all events in the upper portion, just as 1s 
the case with the vertex of the stem. 
“Tt is further noticeable that the filaments, and particularly the 
clusters of the spore-branchlets, are abundantly furnished with a 
APHANOCHEATE, A. Br. 
A. repens, 4. Br. 
Hab.: Between the Norman and Gilbert Rivers, 7. Gulliver. 
MICROSPORA, Thur. 
Articulate thread simple. Chlorophyllose mass at first. parietal, 
aiterwards contracted in the centre. All articulations fertile. ‘ 
Propagation by zoogonidia. Zoogonidia arising from a simul- 
taneous division of the cell contents, smal], numerous, ovate-elliptical, 
cuspidate and colourless at one end, usually furnish with as nai y 
“i cilia, escaping by rupture of the cell.—Cooke’s Freshwater 
, 135, 
P.W. Al SDI n, but often dis- 
-5 Small exspitose tufts, attached, ; 
‘oloured, ferruginous ; irticulatiohs short cylindrical, not vane ieee 
at joints, nor swollen; cells before division not © ing 
lameters, usually as long as broad. Cell membrane thin, 
Wogeneous ; Revtany evenly distributed. Diameter, 6-73 
SC &. 0, ; 
Professor Schmi .—Our alga agrees well with the diagnosis 
fatained in “De Toni Sylioge Mears ” J, and with aeons 8 
h in Tab. Phye. III., Plate 42, Fig. Villc. In the come 
Owever, it does not form flakes, but is separate, growing upon 
Plants. The cells are 9 p broad and 12 p long. (Plate V. 
Hab.: Bowen Park, Brisbane, W. J. Byram. 
case, 
ater- 
-Pachyderma (Wille), Lagerh. 
Hab.: Johnstone River, Dr. Thos. L. Bancroft. 
a C.bo CONT P fi Schmidle says — 
 ¢oOMmbycina . pallida, Auetz. Protessor »e 4 
“by cls are 4 t Sronir 16-18 p long, and somewhat constricted at 
en s.” 
Hab, ; Bowen Park, Brisbane, W. J. Byram. 
