$70 61. Spheroc. 2. THALASSIOPHYTA. PI. cell. aph. 
short scattered cilise; tubercles hemispherical, immersed in 
the thallus near the edge. 
Fucus bifidus, Huds. Fl. Angl. 581; Turn. Hist. 1543 Engl. Bot. 173. 
Sphzrococcus bifidus, 4gardh Disp. 16, 
Delesseria bifida, Lamour. Thal, 
Rocks and plants in the sea; perennial; Sept. to Jan. 
@. ciliatus. Thallus linear, fringed along the edge; fringe 
minute, toothlike; 7p lanceolate, pointed. 
y. decipiens. Thallus irregularly divided; edge here and 
there fringed; ¢ip oval and pointed. | 
0. subpalmatus. Thallus linear, nearly palmate, rounded 
at the tip. 
e. sinuosus. Thallus somewhat dilated, slightly sinuated 
towards the tip. 
é. stipitatus. Thallus nearly cylindrical; tzps either di- 
lated and blunt, or narrow and pointed, prolifercus at the 
edge. 
g. Thallus flat, forked or palmate, fringed; tubercles on 
the edge. 
14. Spherococcus laciniatus. Jagged roundfruit. 
Thallus flat, leatherlike, lobed ; segments dilated up-* 
wards; ‘ip palmate, blunt; edge crenated, proliferous; 
sporidia in thé thickened edge, or marginal fringe. 
Fucus laciniatus, Huds. Fl. dngl. 579; Turn. Hist. 69; Engl. Bot. 1068, 
Fucus miniatus, Fl. Dan. 769. 
Fucus ciliatus, Gmel. 176. 
Fucus crispus, Esper. 18. 
Fucus crispatus, Stackh. Ner. Brit. 15. 
Fucus laceratus y, Linn, Tr. 3, 156. 
On rocks and stones in the sea; February to May. 
Thallus aggregated, smaller at bottom. 
B. ovalifolius. Thallus proliferous on the edge; marginal 
processes elliptical roundish, simple, on short petioles. 
h. Thallus flat, pinnately lobed, fringed ; tubercles on the 
edge. . 
15. Spherococcus ciliatus. Fringed roundfruit. 
Thallus flat, membranaceous, cartilaginous, lanceolate, 
pinnately divided ; surface and edge fringed; fringe mostly 
simple, awlshape, spread; éulercles on the edge. 
