Pi.cell.aph. 1. HYDROPHYTE. 25. Conferva. 315 
48. Conferva flacca. Flagging crowsilk. 
Threads simple, slender, bristlelike, very minute, flaccid ; 
joinis rather shorter than broad; Anoés pellucid, contracted. 
Conferva flacca, Dillwyn, 49. ’ 
On stones, or wood in the sea, and on marine plants. 
c. Coloured, brownish, marine. 
49. Conferva curta. Short crowsilk. 
Threads simple, in bundles, nearly cartilaginous, short, 
attenuated below, olive brown; joints rather longer than 
broad ; knots pellucid, contracted. 
Conferva curta, Dillwyn, 76; Engl. Bot. 2084. 
On marine plants. 
Threads nearly upright, light brown. 
50. Conferva flaccida. Flaccid crowsilk. 
Threads simple, in bundles, short, flaccid, straight, 
broader at bottom, attenuated at the tip, light brown; 
lower joints shorter than they are broad; upper longer. 
Conferva flaccida, Dillwyn, 6. 
On marine plants. 
Tufts half an inch long; threads rather cartilaginous. 
51. Conferva_fucicola. Fucus crowsilk. 
Threads simple, slender, tufted, straight, short, blunt, 
tron-brown ; joints twice as long as broad; knots pellucid. 
Conferva fucicola, Velley Marine, Pl. 43 Dillwyn, 66. 
Conferva ferruginea, Roth Cat. 3, 274. 
Conferva fucorum, Roth Cat. 3, 273. 
On marine plants. 
Tufts half an inch long; threads from a shieldlike base, 
tip attenuated, blunt. 
52. Conferva scutellata. Saucer crowsilk. 
Tufts depressed, peltate, closely entangled, rooted in the 
centre; éhreads branched at the bottom; joints as long as 
broad. 
Conferva scutellata, Engl. Bot. 2311. 
Parasitical on the apothecia of himanthalia loreus. 
Threads above simple, long; below having a few short 
alternate branches, entangled into a dense, viscid, pale ap- 
parently homogeneous mass. 
