THE ALGA-FLORA OF CAMBRIDGESHIRE. 115 
the ultimate Sore rg sa mie genus Us have to be based rather 1 tee 
combinations of chara than upon mere difference in outward 
form alone. e lt ise om me ‘int 3 as “oon we know but title con- 
cerning the Cosmaria of the world, there being as many as two hun- 
dred and sixty — recorded as British, and only about one 
e 
of the genus Vee een much augmented by future research, an 
rr to eo i: it into other genera, which, far from fulfilling 
the requirements of the case, only render matters more complicated, 
is to be ane deprecated. 
10. C. Granatum Bréb. 5. Wicken Fen; Chippenham Fen. 
6. Roswell Pits, Ely. 8. Twenty-foot River, between March and 
uyhirne. A number 
‘politan species were observed, notably one agreeing with that 
mentioned by Gutwinski ef Glasnika Zemalsjskog Muzeja u Bosni i 
Hercegovini, viii. 1896, 374, t. 1. f. 2a’; and — ‘ Subfoss. sdtv. 
alg. fran Gotland,’ pect Nokee: 1892, Be We ee eee FS ong “41 p3 
lat. 26: 5 Bi lat. isthm. 7°5 ps 
Var. suscranatum Nordst. 2. Dernford Be 1 mile a4 of Shel- 
ford. 3. “Da Bridge ; Wimpole Park. Wicken ; Chip- 
penham Fen. 6. Roswell Pits, Ely. 7. The Washes, Sie and 
Sutton West Fen; March. 8. Guyhirne 
Several small psig were observed intermediate between C. gra- 
natum var. subgranatum and C. Meneghinii var. Hise ieee gant in 
Berichte der Naturf, Gesellschaft zu By gt Se i. B. 1893, 28, t. vi. 
f. 15 gio i by him as a species—C. gra Sota Schmille in 
ounded his var. concavum (‘Contrib. Fl. Alg. Ecuador,’ Extr. L 
Anales de la Universidad de Quito, 1890, 16). 
111. C. Kuessn Gutw. ad, Uniee Flory Glonédw Galicyi,’ 
Sprawozd. poy fizyog. kad. w Krakowie, xxviii. pt. ii. 
125, t. iii. f. 8. Long. 31 p; lat. 29 py lat, isthm. 10°5 p. Also 
a proportionately longer form; long. 41 »; lat. 32°5 yw; lat. isthm. 
10 icken Fen. 
A somewhat —. form was noticed terme Roswell Pits, Ely ; 
long. 87 p; lat. 85 »; lat. isthm. 11 4; ¢ its 
approached C. Poe Bréb. var. cihelsae um Boldt (‘ Siber. 
Chlorophy.,’ oe af K. Vet.-Akad. Férh. 1885, no. 2, 108, t. v. f. 7), 
but I fully agree with Schmidle (Flora, 1896, Bd. 82, heft 8, 307) 
that the latter bas: nothing to do with C. Phaseolus, a species I know 
well from both Europe and laceeal. Perhaps Boldt’s variety 
really halengs to C. Scenedesmus Delp. 
112. re nbs esi Bréb. 5. Wicken Fen. 6. Roswell Pits, 
Ely; long 17 p»; lat. 17 »; lat. isthm. 5 p. Rather pa forms 
from 5. Tieronatiate Fen; long. 21 »; lat. 21 w; lat. isthm. 6 p. 
* It is a strange fact that T t e his 137 Indian 
species of Cosmarium under the neven erotica into which 1 to divide 
the gen Had he done so, it would have been possible to heres some aden as 
to the aiibaratte usefulness of his proposed divisi 
12 
