197 
C. juncidum, Ralfs Desm., 172, t. 29, f. 6. Isolated amongst 
other Algae in side-tanks of "water- lily house, April, 1902. 
C. lineatum, Hhrb. Abh. Berl. Akad., 1833, 238. Temperate 
house pools, May, 1902. 
*C. Ralfsii, Bréb. in Ralfs Desm., 174, t. 30, f. 2. Laboratory 
tank, August, 1897 (Wright !). 
. cornu, Hhrb. Abh. Berl. Akad., 1830, 62. Victoria Regiu tauk, 
June, 1902. 
C. linea, Perty kleins. Lebens., 206, t. 10, f. 20. Isolated amongst 
other Algae in side tanks of water- lily house, April, 1902. 
*Q. eboracense, Turner in Trans. Leeds Nat. Club, i., t. 1, f. 16 
Laboratory tank, August, 1897 (Wright D). 
C. acuminatum, Az. Phyc. germ., 130, n. 4. Amongst Nitella 
syncarpa in a glass vessel in the Herb. Dou. February, 1902. 
Penium, Bréb., 1848 
P. elosterioides, Ralfs Desm., 152, t. 34, f. 4. Plankton of lake, 
April, 1902 (Chodat !); laboratory tank, J uly, 1897 (Wright !). 
Mesotaenium, Väg., 1849. 
M. chlamydosporum, De Bary, Conj, 75, t. 7, f. D. Amongst 
Diatoms and Oscillariae, sharing to bricicvork in pit, March- 
Jul 02 
Euastrum, Erb., 1831. 
E. venustum, Bréb. Liste, 124, t. 1, f. 9. Lake, May-September, 
1902. 
Cosmarium, Corda, 1835. 
C. granatum, Bréb. in Ralfs Desm., 96, t. 32, f. 6: oe 
tank, May, 1902 ; tank in private grounds, May, 1902 
C. quega- AA taa AR Lund. Desm. Suec., 41, t. 2, f. 18. 
Amongst other Algae the rocks in the pools of hs E Br 
house, March, 1902. 
C. go anim Wittr. Sotv. Alg., 60, t. 4, f. 14. Temperate 
house pools, May, 1902 ; lake, June, 1902. 
C. crenatum, UR Ann. Nat. Hist., xiv., t. 2, f. 6. Lake, April- 
September, 1902. 
C. manedbor a ) Meneg. Syn. Desm., 219. Tank in 
private grounds, 1902 ; side tanks of water- lily house (15), 
June, 1902 ; aee of Thames, August-September, 1902. 
C. botrytis, Meneg. Syn. Desm., 220. Amongst Cladophora fract 
in temperate house pools, December, 1901 (mihi); etn 
tank, July, 1897 (Wright !). 
*C. Bro , Thw. in Ralfs Desm.,. 103, t. 16, PB LILET 
Biboriory qw August, 1897 (Wright 1). 
