Ser. CHLOROSPERME2. Fam. Confervee. 
Pirate CCCXXVII. 
CONFERVA COLLABENS, 4%. 
Gen. Cuar. Filaments green, attached or floating, unbranched, composed 
of a single series of cells or articulations. rit, aggregated gra- 
nules or zoospores, contained in the articulations, and having, at 
some period, a proper ciliary motion. Conrerva (P/in.),—from 
conferruminare, to consolidate; because some of the species were 
used by the ancients for binding up fractured limbs. 
Conrerva col/abens ; filaments elongated, straight, tufted, very thick (but 
of various diameters), gelatinous and flaccid, of a splendid eruginous 
green colour; articulations from once to once and a half as long as 
broad, filled with a dense granular mass. 
ConFrerva collabens, 4g. Syst. Alg. p.102. Harv. in Hook. Br. Fl. vol. ii. 
p. 354. Harv. Man. ed. 1. p. 130. ed. 2. p. 209. 
ConFERVA rea 8. lubrica, Dillw. Syn. p. 48. 
Hormorricuvm collabens, Kitz. Sp. Alg. p. 383. 
Has. At Yarmouth, on a floating piece of deal, Sir W. J. Hooker. (Only 
once found.) 
Grocer. Distr. German Ocean. 
Descr. Filaments densely tufted, three or four inches long or more, of very 
various diameters in the same tuft, the largest ones being twice as thick 
as C. @rea or more, the smaller not measuring one-fourth as much in 
diameter. Articulations generally somewhat longer than their diameter, 
filled with a brilliantly coloured, granular and dense mass of endochrome ; 
the dissepiments much contracted, and the walls of the cells thick. Sud- 
stance very flaccid and gelatinous, adhering most closely to paper. The 
colour is a peculiarly rich green, and is well preserved in drying. ‘ 
OO 
Dillwyn notices this species, making it a variety of his C. grea, 
in the following words :— “This curious variety, which was 
found on the Yarmouth beach by Mr.” (Sir William) “ Hooker, 
in the spring of 1808, attached to a piece of deal, differs so 
extraordinarily from the common appearance of C. @rea, that, 
except under a microscope, nobody would suspect them of being 
the same. It grew in a very large tuft, and its filaments were 
remarkably soft, tender, slippery, and glossy, so as to float with 
