12 
BOTANICAL EXCHANGE CLUB. 
plant. May be O', opaca. Wo must attend to the fresh state 
to see if the characters are correct, viz. : — 
1. syncarpa. Nucules and globules coated with mucilage, 
spires of nucules broad flattened, faintly separated. 
2. capitata. Similar, but nucules with rather acute promi- 
nent spires. 
3. opaca. Nucules and globules naked, spires prominent. — 
C. C. Babington. 
0. translucens, Pers. Pond near Woodford, S. Essex, June, 
1877. — H. Groves. 
C. intricata, Both. Pond, Kelvedon, Essex, June 10, 1877. — 
E. G. Varenne. 
0. crinita, Wallr. Swan Pool, Falmouth; coll, by W. Curnow 
•for Mrs. E. A. Lomax, August, 1877. Differs considerably from 
my specimens from Burdock Pool. I think it may be only a form 
of C. fcetida.—G. C. Babington. 
C. fcetida, Braun. The Lizard, W. Cornwall, September, 1877. 
Coll, by Mr. Curnow for Mrs. E. A. Lomax. C. fcetida from the 
Lizard is curious, and worth more attention. It may be different, 
but I cannot now settle that point. It is apparently the plant 
from near Kynance Cove, which I named C. fcetida, var. densa of 
Cosson last year. It is more like Cosson’s figure (Atl. El. de 
Paris, p. 37, f. 8) than the Kynance Cove plant. — C. C. Babington. 
C. hispida." Shallow pool on downs. Lizard, W. Cornwall ; 
August 25, 1877. — W. B. Waterfall. C. y)olyacantha, I believe. 
I so named what is apparently the same plant for Mr. Ealfs from 
“rivulet on Lizard Downs ” last year. — C. C. Babington. 
C. aspera, Willd. Canal, near Pirbright, Surrey, August, 1877. 
— H. & J. Groves. I so named this plant for Mr. Groves last 
year. It is, I believe, the C. aspera, v. capUlata of A. Braun. — 
C. C. Babington. 
C. fragilis, Desv. Stream near Lyndhurst, S. Hants, June 26, 
1876. — J. Groves. 
C. frayifera, Durieu. Pond, Lizard Downs, July 31, 1877. — 
J. Ealfs. Chy-an-hal, near Penzance, 1867. — J. Ealfs, also W. 
Curnow for Mrs. E. A. Lomax. I have now an admirable series of 
this beautiful plant.. “ C. frayilis, stagnant pool near Land’s 
End,” from Mr. Waterfall, is, I quite think, C. frayifera [as also is 
probably a plant which [Mr. Townsend got at Tresco, in Scilly, in 
1862] . — C. C. Babington. 
T. E. AECHEE BEIGGS. 
April, 1879. 
