The English flora - SeaweedAfrica

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Calithamnion.] ALG.E CONFERVOIDEiE. 341
they do not precisely agree in all the above particulars, yet resemble the
Scottish specimens so nearly, that we aie afraid to describe them as
distinct. They are more slender in all parts, and the main-stems are
sub-articulate. C. Brodicci has much the habit of a small specimen of
C. tctragonum, but comes nearer in character to C Arbuscula.
8. C. Hookeri, Ag. (Hookers Calithamnion) ; stem and
branches thick cartilaginous inarticulate laxly set with short
subovate plumules, pinna? flexuose patent subsimple very slen-
der acuminated, capsules subsolitary seated near the base of the
lowermost pinnse. Ag. Sp. Alg. v. 2. p. 179? Conferva
Hookeri, Dilho. Conf. t. 106.
Sea-shore, very rare. Cawsie, Messrs. Hooker and Borrer. Holyhead,
Rev. H. Davies.— Dillwyn's figure is very characteristic.
9 C. lanosum, Harv. (ivoolly Calithamnion); stem inarticulate
slender, branches jointed excessively divided entangled
flexuose spreading, plumules crowded quadrifarious broadly ovate
obtuse, lower pinna? divaricated, upper spreading and sub-pinnu-
late, articulations of the branches 2—3 times longer than broad,
of the pinna? shorter, capsules subsolitary.
Sea-shores. Tor Abbey, Mrs. Griffiths. Killinev, W. II. Harvey.—
]—3 inches high, flaccid, excessively branched, somewhat woolly and
entangled, branches very flexuose, closely plumulate, pinnae very patent
and divaricating. Main-stem nearly opaque, longitudinally striated.
Favellcc large, irregularly ovate, dark-red. In drying, this species fades
to a dull pink; wholly without gloss. On re-immersion, it is extremely
fragile and quickly gives out its colour. The habit is more that of C
roseum than of any species in this division, but its inarticulate stem give*
it a place here.
2. Main-stems more or less distinctly articulate.
* Plumules lax, ovate, lanceolate or irregular, subsimply pinnate,
10. C. rdseum, Ag. (rosy Calithamnion); much and loosely
branched, plumules elliptic-oblong rounded crowded towards the
tops of the branches, pinna' long patent subsimple and flexuose,
main articulations -1—5 times, of the pinna' -2— 8 times, longer
than broad, capsules elliptical scattered near the base of the
phrase. Ag. Sp. .\l. 1(>4.— Conferva rosea, 11. Hot.
t. 966, Dillw. Conf. t. 17 f— Ceramium roseum, Roth, Cat
lint. v. II. p. 182, and v. III. p. I
!•">.
Sea-shores, oo the larg< rhaps common ; buf bo rontinuallv
confounded with other species, thai it La impossible to say how mam, or
the recorded stations belong to it. Our description ia drawn up from
Yarmouth specimens, communicated bj Dawson Turner, Esq., and compared
1>\ him with the Ceramium roseum of Roth.— 2—4 inches high,
much branched from the base, excessively tufted, branches long and
flexuose, patent, distichous or quadrUarious, plumulate, plumules towards
the top crowded and fasciculate, I —6 lines Ions, tin- lower pinnules]
simple and flexw ere« to-j stent, the upper sparingly pinnu-
tboul the B| " a fine purple-red .1/-"'' iud-
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