34 
S. australensis, Moebivs & sp.) Prof. Moebius first gives | the 
following Latin description :—‘ Sp. cellulis vegetativis cylindricis, 50 p 
crassis, 2-3 plo friend Dobe “ernie singulis, anfractibus 25-2; 
m 
= 
et 
oO 
5 
i 2 
SSE. 2 8 
n 
longer than the canal ae from the female filament ; zy gotes oval, 
40-45 » thick, 74-77 » long, furnished with a thin, internal, hyaline 
membrane and an external thicker one, mo green, finely verrucose,) 
He then adds:—“This species is akin to Sp. % velata, 
a, Nordst., and 
Sp. dedalea, Lagh., but is distinguished oy the characteristics of the 
t ormer 
50 p thick, 
mooth; the 
thick inner one, on the other hand, is brownish-yellow and thickly 
«cee with fine protuberances 
: Burpengary ; collection, Match, 1893, Dr. Thos. L. Bancroft. 
Pinis IX., Fig. 1.) 
S. nitida oie, ), Link (?). Sterile cells with the ends 
and usually 2 to 4 times as long as broad ; chlorophill-ban« 
making 1 to 4 turns of the spir al. Spores elliptic-ovoid (alm 
_ almond-shaped), 13 times as ions as broad, membrane even: 
ferous cells persistent. Germinating ie esate, me, : 
trunc ~ 
ds abou 
i (almost 
attenuated. Size: ae carr ‘072-078 mm. diam. Petit), | 7-09 | 
mm. (Cleve), ‘06-075 ete bh. ), 054-077 mm . (Birch): 
mm. (M.C.C.). Zygo biibon ‘1 x ‘072 mm. eae 11-18 
(M.C.C.).—Cooke’s British Freshwater Alge, 86 
oebius remarks :—‘ The cies vy to be 
described 
of 
: spe the 
agrees very well in most of its characteristics Pe ip: eae anit ; 
spores are not yellowish (flavescentes), as is stated in the iago 
but chestnut-brown. They have likewise a thick, colou 
as long, and contain 4 Mops a a” 3 
: sti 
anfract 1-1} ; cell. sta t. parum inflatis, yix abbreviatis 
ellipticis apice attenuatis, 60-90 m crass., 13-2 plo long ma’ 
flavescentibus. Hab. in Europa, America boreali, Algeri®- 
rie 
