The English flora - SeaweedAfrica

—
Ectocarpus.] ALG.E CONFERVOIDED. 325
Alg. v. 2. p. 30.— Conferva olivacea, Dillw. Syn. Conf. p. 57.
t. C. E. Bot. t. 2172.
On rocks and the larger Algae. Orkney, Messrs. Borrer and Hooker.
Appin, Capt. Carmichael. Dunmore, Ireland, Miss Anne Taylor.— Three
lines to half an inch high, forming small tufts or patches. Agardh con-
siders it to come nearest to S. cirrhosa, and to be perhaps, not specifically
distinct; in which opinion I am inclined to agree with him.
9. S. racemosa, Grev. (racemose Sphacelaria); " filaments short
tufted olivaceous dichotomous, capsules ovate racemose pedunculate."
Grev. Crypt. Fl. t. 96. Ay. Sp. Alg. v. 2. p. 34.
Firth of Forth, Dr. Richardson.— Allied to the last; but larger. The
branches, which Dr. Greville calls " dichotomous," appear from his
figure to be alternate. The most remarkable character lies in the racemose
capsules.
10. S. velutina, Grev. (velvet-like Sphacelaria); " olivaceous
spreading velvet-like, filaments subsimple erect very short bearing-
capsules at the base, joints about equal in length and
Linkia velutina, Carm.
breadth."
MSS.
Grev. Crypt. Fl. t. 350.
Parasitical on Himanthalia lorea and Funis terrains, whose fronds it
covers " in dark olivaceous velvety patches."— I admit this minute
parasite into the present genus, where it is certainly an intruder,
from respect to Dr. Greville's authority ; though I confess I agree with
Capt. Carmichael in considering it more allied
strangulans.
to Linkia {Myrionema)
58. Ectocarpus. Lyngb. Ectocarpus.
Filaments capillary, olivaceous or brown, flaccid, without
longitudinal stride. Fruit, sphserical or siliqua-foini capsules,
and granules in swollen ramuli.— Name; sy.ro:, y-x^o-, external
(nut ; equally applicable to many other genera.
• Second'//// branches alternate, fascicled r fecund.
1. E. Uttordlis, Lyngb. (common Ectocarpus); filaments densely
tufted excessively branched, ultimate ramuli somewhat patent
alternate r fascicled, capsules spherical Bessile — Lyngb. ////-
droph. Dan. p. 130. /. :l'. 43. Ag, Sp. Alg. v. 2. p. 40.
ferva UttoraUs, Dillw. Conferv. U 81. /:'. Bot. t. 2290.— Lyngbya
tittor., da 1 1 It m.
On the larger Algcet ver) common.
—
Con-
2. E. siliculdsus, Lyngb. (poelfhsUed Ed r); filaments
flaccid and slender tufted, ultimate ramuli erect subulate alternate
or fascicled, siliqus lanceolate. Lyngb. Hydroph. Dun.
j>. LSI. i. 43. Ag. Sp, Alg. v. 2. p.M.— Conferva tilicut
Dillw. Syn. p.