PI. cell, aph. 2. THAL ASSIOPHYTiE. Gl.Spbeeroc^ 369 
y. slellatus. Segments very numerous; tips finely di- 
vided. 
3". fimbriatus. Segments fringed. 
Fucus fimbriatus, Iluds. FI. Angl. 574. 
Focus cer'anoides 8, Ligktf. Scot. 916. 
e. latifolius. Segments membranaceous, nearly orbicular, 
many- cut, palmate; lobes short; tip rounded. 
£.roseus. Thallus simple; tip expanded, oblong, simple. 
11. Spheerococcus Brodicei. Brodie’s roundfruit. 
Thallus bottom tlireadshape, round, branched ; tip ex- 
panded, oblong, simple or forked; edge proliferous; tu- 
bercles spherical, sessile or nearly sessile on the tip of the 
segments. 
Fucus Brodicei fTurn. Hist. 72 ; Engl. Bot. 1966. 
Focus membrantfoSius, Lamour. Ess. 21. 
Delesseria Brodicei, Lamour, Thai. 37. 
Sphserococeus Brodicei, Agardh Disp. 27. 
Sea-shores; perennial; March. 
Thallus aggregate; tubercles soli tary or in pairs. 
12. Sphcerococcus palmatus. Palmli he roundj ru it. 
Thallus round at bottom, mostly simple; tip expanded, 
wedgeshape, palmated ; tubercles hemispherical, sessile, 
mostly on the edge of the lobes. 
Fucus Palmetta, Esper, 4 0; Turn. Hist. 73 ; Engl. Bot. 1126, not of 
Gmelin. 
Fucus Palmetta 6, Lamour. Essai, 19. 
Delesseria Palmetta, Lamour. Thai. 
Sphcerococcus Palmetta, Agardh Disp. 16. 
Sea-shores, on stones or marine plants. 
Thallus 2 or 3 inches long; edge not in the least cut; 
tubercles superficial, without interwoven fibres. 
(3. bifidus. Thallus simple; tip expanded, wedgeshape, 
simple or 2-cut. 
Fucus bifidus, Iluds. Ft. Jtngt 581. 
y. crassiusculus. Thallus linear, much and irregularly 
divided; tip pointed. 
3“. linearis . Thallus linear ; segments long, simple or 
forked ; tip rounded. 
13. SphcBroCoccUS bifidus . Two-cut roundfruit. 
Thallus fiat# membranaceous, linear, forked; segments 
divaricating; edges here and there united together by very 
VOL. i. 2 b 
