The English flora - SeaweedAfrica

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348 AhGJE CONFERVOIDE^. [Calithamnion,
of an inch to an inch in height, forming large velvety patches, of a deep
red or purple colour. Capsules (discovered by the acute and indefatigable
Capt. Carviichael) elliptical, minute, borne in clusters on short, spreading,
corymbose ramuli, situated near the apices of the branches.
32. C. Jloridnlum, Ag. {pale-red Calithamnion); filaments short
densely entangled sparingly branched, branches alternate or subdichotomous
nearly simple appressed, articulations thrice as
long as broad. Ag, Sp. Alg. v. 2. p. 188.— Conferva florida,
Dillw. Conf. Supp. t. F.
Rocks near low-water mark ; Galway coast, Dr. Scott. Antrim, Mr.
J. T. Machmj — This, I have little doubt, is only C. Rotkii, altered by
growing in deeper water.
33. C. repms, Lyngb. (creeping Calithamnion); filaments
creeping, stems erect broadly tufted, branches alternate patent
with a few short ramuli, articulations 3—6 times longer than
broad, capsules sphserical on long simple or branched pedicel! s.
Lyngb.Hydroph.Dan.p. 128. t. 40. Ag. Sp. Alg. v. 2, p. 184.—
Conferva repens, Dillw. Conf. t. 18. E. Bot. t. 1608, (the young
plant).— Conf. te?iclla, Dillw. Conf. Supp. t. F.
On the larger Algce y especially Furcellaria lumbricalis, common.— Tufts
1— 1^ inch high, deep-red, forming a dense woolly coating on the infested
Alga?. Capsules sphaerical, or long pedicells.
34. C. mesocdrpum, Carm. (medial-fruited Calithamnion);
" filaments minute csespitose, branches virgate erect, articulations
4—5 times longer than broad, capsules elliptical on long pedicels."
Carm.
Rocks at the extremity of low- water mark; Appin, Capt.Carmichael. Rare.
—" Tufts contiguous, forming a broad shaggy purple crust. Filaments
2— 3 lines long, sparingly branched; branches long, straight, erect, simple
and subsecund. Cajmdes crowded about the middle of the filaments,
secund or opposite, on long single-jointed or forked peduncles, the capsules,
in the latter case, either in the axils or substituted for a branch of
the fork. I could not discover that it sprung from creeping filaments."
Carm. MSS. This appears to come very near C. strictum of Agardh.
** minutely tufted, parasitical.
35. C. spdrsum, Harv. (scattered Calithamnion); filaments
minutely tufted scattered sparingly branched, branches spreading
unequal, articulations twice or thrice as long as broad,
" capsules obovate sessile mostly axillary." (Carm.)— C.fioridulum,
Lyngb. Hydroph. Dan. p. 136?
On old stems of Lam. saccharina, at Appin, Capt. CarmichaeL On
Conf. nqjestris, at Miltown Malbay, JV. H. Harvey.— Scarcely a line high,
forming minute scattered tufts. Stems nearly simple, erect, slightly
branched beyond the middle, branches erecto-patent, alternate or secund,
of unequal length, apices obtuse.— This is probably the Cal. floridulum
of Lyngbye. It is better distinguished from C. Rothii by its minute
size and scattered habit, than by any precise character. The fruit,
however, is very different.
36. C. Daviesii, Ag. (Davies' Calithamnion); rose-red minute
tufted much branched, branches flexuose scattered distant