The English flora - SeaweedAfrica

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Chordaria.] il,GJE INARTICULATE. 275
" fresh specimens, when spread upon paper, rendered it transparent as
if it had been touched with oil, but in a short time this transparency
disappeared."
3. S. rhizodes, Ag. (root-like Sporochnus); frond rather stout
filiform with subdichotomous branches covered with numerous
warts of fructification. Ag. Sp. Alg. v. 1. p. 1.5G. Chondria
rhizodes, Ag. Syn. p. 15. Lyngb. Hydroph. Dan. t. 13, et C.
paradoxa ejusd. t. 14. Fucus rhizodes, Turn. Hist. Fuc. t. 235.
Conferva verrucosa, E. Bot. t. 1688.
In the sea, parasitic on other Algae, on the south coasts of England ami
Ireland. 0. Summer,
Tribe V. Chordarie^e.
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Plants all marine, of an olive-green colour, becoming darker on
exposure to the air ; of a cartilaginous and lubricous substance.
Foot scutate. Frond continuous, cylindrical, filiform, composed
of a solid cellular centre and a dense exterior mass of concentrical
filaments. Fructification imperfectly known. Grev.
12. Chordaria. Ag. Sea- Whipcord.
Frond filiform, cartilaginous, solid, continuous, composed exteriorly
of a stratum of concentrical filaments. Grev. Alg.
Brit. p. 44. t. 7.—Named from Chorda, a cord or string, consequently
much too like the following; and older Genua Chorda.
Our C.flagelliformis, the type of the present Genus, my valued
friend Air. Harvey is inclined to place with the Batrachospern ea
in the Confervoideee; but I rather follow Dr. Greville in retain-
ing it among the " Inarticulate" with which the internal
structure and texture of the stem most accord-.
1. C. flagellif&rmis, Ag. (common Sea-Whipcord); frond
throughout equal filiform branched, branches long mostly simple
and distichous, Beeda naked among the concentrical filaments.
Ag. Syn. p. 12, Sp. Alg. v. \.j>. 1. Grev. Alg. />>it. />. 44.
/. 7.— Gigartina fiagell., Lamour.— Fucusfiagell., 11. Don. t.650.
Turn. Syn, Fuc. p. 335, Hist Fuc. t. 85. E, Bot t. 1222.
Sea-coast, on rocks and stones. ©. Bummer.— 1— •'» feet long, very
slender, olive-brown, almost black when dry. " Fructification," according
to Capt. Carmichael, K external, consisting of obovate brown
spoii.lia, mixed with clavate jointed filaments, covering the whole Bur-
face of this frond."—The same acute observer remarks, that then- is
little or no vestige of the filament* in the young plants, and their deve*
lopement appears to keep pace with that of the sporidia.
Tribe VI. Dn rYOT&s.
Plants all mo rim. of on olin -green colour, m>/ changing on
tun to tin air, of a membranaceousJlexibu substance (rarity
cartilaginous) and reticulated tti Root eith