Alg(B.-\ 
CALIFORNIA.— SUPPLEMENT. 
4.07 
2. Y.fiircatus, Ag. Syst. p. 279. Harv. supra, p. 163. 
San Francisco. Dr Sinclair. 
1. Cystoseira Douglasii [Harv.'); caule tenui laevi alternatim ramoso, ramis decom- 
positis pinnato-dichotomis, axillis rotundatis, vesiculis ellipticis concatenatis in ramulis 
immersis. 
Stem slender, a a line to a line in diameter, compressed, smooth, 12 inches long or more, furnished with 
alternate, much divided branches, at distances of an inch or upwards ; the branches pinnated, the lower pinnae 
simple or forked, the upper raultifid in a sub-dichotomous manner ; all the axils rounded and the ramuli erect, 
apices attenuated. Vesicles as large as vetch-seed, 4-12 or more together, forming a moniliform chain, im- 
bedded in the most of the ramuli. Receptacles and root unknown. Hab. Monterrey. Douglas. 
1. Halydrys osmundacea {Harv.) — Fucusosmundaceus, Turn. Hist. t. 105 Cystoseira 
osmundacea, Ag. Syst. p. 287. 
Monterrey. Douglas. 
Tbiee 2. LAMINARIEiE. 
1. Laminaria saccharina, Lamour. — Fucus saccharinus. Linn.~Turn. Hist. t. 163. 
San Francisco. Dr Sinclair. — The lamina of the frond is remarkably narrow. 
1 . Macrocystis pyrifera, Ag. Syst. p. 292. — Fucus pyriferus. Linn, — Turn. Hist. 1 . 110. 
San Francisco. Dr Sinclair. 
2. M. Menziesii, Ag. Syst. p. 293. — Fucus Menziesii. Turn. Hist. t. 27. Harv. supra, 
p. 163. 
San Francisco. Dr Sinclair. 
1. Alaria esculenta, Grev. — Fucus esculentus. Turn. Hist. t. 117. '' 
San Francisco. Dr Sinclair. — The specimen very imperfect. 
Tribe 3. FLORIDEA). 
1. ’Delessexisi platycarpa, Ag. Syst. p. 252. — Fucus platycarpus. Turn. Hist. t. 144 
Harv. supra, p. 163. 
Monterrey. Douglas. 
1. Hymenema fissa, Grev. — Fucus venosus. Turn. Hist. t. 138. — /3. marginata, Harv. 
capsulis marginalibus. 
A very remarkable variety, perhaps a distinct species. The veins are stronger and more prominent than 
in Cape specimens, and the capsules confined to the margin or borne on small, roundish, marginal processes 
or leaflets. The granuliferous specimens present no remarkable characters. Hab. San Francisco. Dr 
Sinclair. 
