86 
bright green, in which case they have always been found immersed in 
water; while in others, and more frequently, they are purple, of which 
colour they invariably are found spreading over swampy heaths.”— 
-Hass.; Cooke, Le. 
Z. (Zygogonium) ericetorum, f.a., (Awetz.) Hansg. “ Cells 
eylindrical, 24 w thick, 3-4 times as long, without gelatinous envelope; 
spores not seen.”—Moebius. 
Hab.: Burpengary, Thos. Z. Bancroft. Met with also in Europe and North 
America. 
“Cells 18 » thick, once to twice as long, at times with side sprays. 
the var. terrestris, Kirchn., of which, according to 
Kirchner, such side sprays are characteristic ; it 
Very probably generally distributed ; especially attributed to Europe 
and North America.’”’—Moebius. 
2. (Zygogonium) ericetorum, f.b. 
Hab. : Fairfield, Thos. L. Bancroft. 
SPIROGYRA, Link. 
d 
by Kuetzing—Spirogyra and Rhynchonema. In the former the con- 
be relied upon, the most im ortant and reliable characters being 
derive from the zygospore; hence only specimens in fructification 
ean be accurately determined.—Cooke, l.c. 
: rot. Moebius says:—“ Numerous species of this orde 1 
° served ; the majority were, however, I sorry to say, sterue, oe 
consequently incapable of being determined. Only two species ~— 
found in fructifieation.” 
ay ¥ i 
thi punctata (Cleve), var, tenuior, Moebius (n. var.) Refermvg 
hen to this species, he adds :—* This species belongs to the section 
Monozyga, Hansg. (where the canal of conjugation is only ormed sh 
cells 
ong: 
y were 
of 33-7 
and» 
