The English flora - SeaweedAfrica

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Calithamnion.] ALGyE CONFERVOlDEiE. 343
broad, capsules elliptical minute on short lateral processes of the
pinna3. Ag. Sp.Alg. v. 2. p. 179.— Conferva tetrica,Dillw. Conf.
t. 81. E.Bot.t. 1915.
On rocks, generally such as are perpendicular; very common.—2—
inches long, forming dense ropy tufts. In drying, it adheres, but not
firmly, to paper; and on being again moistened, is extremely fragile,
scarcely able to sustain its own weight. Capsules 1—3 on each lateral
process. Favellce generally in pairs, minute, seated on the plumules
and nearly terminal.
14. C. tetragomun, Ag. ([square-stalked Calithamnion); stem
subsimple cartilaginous, branches patent alternate once or twice
pinnate, plumules short alternate spreading pinnate below, fas-
ciculate! y multifid above, apices obtuse with a mucro, articula-
tions of the ramuli once and a half as long as broad, joints
contracted. Ag. Sp.Alg. v. 2. p. 176.— Conferva tetragona,
Dillw. Conf. t. 65. E. Bot. t. 1690.
On the larger Laminavicc, abundant on the southern coasts of England
and south and west of Ireland. Capsules excessively minute, ses-
sile, elliptico-sphscrical, secund on the upper ramuli. Favellce solitary
or in pairs, large.
15. C. graniddtum, Ag. (warted Calithamnion); stem subsimple
cartilaginous distichously branched, branches erectopatent,
plumules subquadrifarious erect pinnate below, multifid
and level-topped above, pinnules subulate very erect and closepressed,
articulations of the ramuli twice as long as broad.-*-
Ag. Sp. Ala. v. 2. p. 177.
On the larger Alg