62 ee 
upper cells are divided by longitudinal walls in the manner of the / 
cells of the stem. The two opposed rays are broadest in the middle, — 
tapering away at the base and vertex, but with obtuse ends. Their 
cells are divided by longitudinal walls, only at the point is found one 
/ or several not divided. At the apex of the gérminating bud between | 
both the rays stands a thin hair consisting of 15-20 cells. 
plants before me were as much as 1°5 em. lon 
ae | 
iw 
® 
simple joints are generally as long or somewhat shorter than thee 
diameter. The stalk of the germinating buds is on an average abou 
: y 
me 
average length of 280 », with a greatest diameter of 40 p. 
not find organs of fructification. 
“ Our species is distinguished from Sph. furcigera (Kuetz.), 
only Sphacelaria with two-rayed germinating buds known to We } 
the lancet-like rays and the central hair; moreover, in Sph. fureg of 
the dise of attachment (according to Reinke) lies in the tissue ® 
the host.” 
Hab.: Adelaide 
(Plate XV., Fig. 3.) 
CALLITHAMNION, Lyng. 
C. ovuligerum, Aske. (n. sp.) Dr. Askenasy gives the following 
Latin description saa Thales Algis (Laurencie Tasmanice) por’ A 
axl hd . . . - 
the | 
by 
stituta. Tetrasporangia tetraedrice divisa, singula a ‘let 
Hiaiees geniculum ramorum affixa.”  (Thallus affixe poe 
arsnabivoage Tasmanica] axis made up of jointed filaments, oetial a 
cells without 
4 
‘short-pointed branches, which carry unicellular oviform oF © 
branch] 
e 
ment to the Laurencia, On the substratum is found one 
a creeping jointed filament which bears organs of attachmen : pright 
under side, whilst from the opposite proceed numerou an 
axes : 
) eel 
The thallus consists throughout of repeatedly a yoke 
oe without cortical layer. h >§ are various yi ‘oints of 
a 
a8 
shortened joints. On these, finally, we fi ; : 
Which merely consist of a unicellular, short, cylindrical, of CBB og 
we i growth. The main : 
