‘ 
Pi. cell. aph. 2. THALASSIOPHYTZ€. 27.Bulboch. 321. 
II. 27. BULBOCHATE. Agardh. Bristle-weed.. 
Thallus green, membranaceous, much branched, jointed; 
branches bristlelike, continuous, bulbous at the bottom, 
from the end of the joints; thece ovate, capsular, sessile, 
lateral, alternating with the branches. 
Bulbochete Rothit. Roth’s bristle-weed. 
Thallus branched, flexuous, yellowish-green; branches 
bulbous at the base; joimés 3 times as long as broad. 
Conferva vivipara, Dillwyn, 59. 
Conferva setigera, Roth Cat. 3, 238. 
Bulbochete setigera, 4gardh Syn. 71, 
Fresh-water plants. 
Tufts half an inch long, upright, weak; stem forked ; 
branches very slender, simple, straight, very long. 
II. 28. ECTOCARPUS. Lyngbye. Brown-weed. 
Thallus threadshape, jointed, membranaceous, very 
much branched, brown; joinés all simple; knots pellucid; 
thece ovate or podshape, on the side or ends of the twigs. 
—Mostly marine; threads entangled into a branched tuft.. 
1. Ectocarpus tomentosus. Woollike brown-weed. 
Thallus very slender, very closely entangled into a rope- 
like, spongy mass, very much branched; branches vague, 
divaricated ; joints 4 times as long as broad. 
Conferya marina tomentosa minus tenera et ferruginea, Dillen in Rait 
Syn. 59, 15. 
Conferva tomentosa, Dillwyn Conf. 56. 
Ceramium toumentosum, Agardh Syn. 64. 
Ectocarpus tomentosus, Lyngbye Hydr. Dan, 132. 
Sea-shores. 
Tufts 2 or 3 inches long, very much branched, pale 
green ; threads equal; branches spreading; thece capsular, 
ateral, podshaped terminal. 
2. Ectocarpus littoralis. Shore brown-weed. 
Thallus ropelike; threads very slender, entangled ; 
branches upright, opposite and alternate; joints as long as 
broad. 
Conferva marina capillacea longa ramosissima mollis, Dillen in Raié 
Syn. 59, 9. 
Conferva littoralis, Dillwyn, 31; Engl. Bot. 2290, 
Ceramium tomentosum, Roth Cat. 3, 147. 
Sea-shores on rocks, shells, or other sea-plants. 
Thallus pale green, not spongy, less densvly entangled. 
VOL. I. Y 
