37 
3-5 rarely as much as 8 times as long, with a chlorophyll-band of 3-5 
spirals, the spores 30-32 y. broad and 66-70 # long. IL have on thi 
account set it down as a distinct form. The species is known in 
Europe, North America, and Afghanistan.” 
ab.: Burpengary, Thos. L. Bancroft. 
8. Calospora, Cleve. Cooke’s British Freshwater Alge,94. Sterile 
cells, with the extremities replicate, 6 to 12 times as long as broad ; 
chlorophyll-bands 1 to 3, making 24 to 7 turns; spores elongate, obtuse 
ovoid, 13 to 2 times as long as broad; membrane yellow, scrobiculate, 
Sporiferous cells scarcely turgid. ‘ r 
__ trot. Moebius gives the following remarks :—‘ This species 
belongs to the section Salmacis (Bory), Hansg., with replicate septa, 
and certainly to the species not possessed of smooth membrane to the 
res, 
and . The vegetative cellsarein the foregoing form :—About 27 ore 
om within certain limits, on which account Cooke assumes 
“everal forms for it,” 
ace S26: a, sterile cells x 200; B, ¢, conjugating cells with 
_ Teospores x 200; d, outline zygospore x 400.—Cooke, l.c 
ab.: Caboolture River, Thos. L. Bancroft. Also found in Europe and America. 
Faminy VIII. DESMIDIACE® (Kuetz.), De Bary. 
Unicellular alge. Cells for the most part compressed, single, 
segregate or eminate, or a larger number united in a band or 
5 Waid 
: : Ahendips 
00spores (2 ed into young cells of a new generation. Ciliate 
; idochrom ce a 2 ra only) produced by the conversion of the 
‘00ke, Le, Ae ots ai sila 
ebius says :— The majority of the D were derived 
form oy, °ceurred in isolated exam es, on which account also 
“tation of 
