The English flora - SeaweedAfrica

396 ALGjE GLOIOCLADEiE. [Palmella.
nally, but whitish within. It is moist, but not gelatinous, very friable,
and, under the microscope, is found to consist of small pellucid bodies,
of various shapes, in each of which are lodged 1—3 minute sphaerical
granules." Carm. MSS.
94. Palmella. Lyngb. Palmella.
—
A polymorphous gelatinous frond, filled with scattered globular
or elliptical granules.—Name ; ncikfto;, vibration ;—the
fronds (if fronds they can be called) are loosely gelatinous.
In natural affinity, this genus stands exactly intermediate between
Tetraspora (to which it is allied by P. terminalis), and
Noctoc; thus connecting the great Tribes of Ulvacece and
Oscillator ieai, which, at first sight, appear so little related to
each other.
* Granules elliptical.
1. P. protuberans, Ag. (soft shapeless Palmella); thick irregularly
lobed very soft green, the granules elliptical. Ag. Syst.'
Alg. p. 14. Grev. Crypt. Fl. t. 243. f 1.— Ulva protuberans,
E. Bot. t. 2583.
Moist rocks, among mosses.—An inch or two broad, soft and gela-
tinous.
—
2. P. cruenta, Ag. (purple Palmella); " frond crust-like very
thin of a dark blood colour." Grev.—Ag. Syst. Alg. p. 15. Grev.
Crypt. Fl. t. 205.— Tremella cruenta, E. Bot. t. 1800.
On damp walls, chiefly limestone or whitewashed; often in cellars.
It forms extensive patches of a blood-red or purple colour.—
" Under
the microscope the structure is very obvious ; the gelatinous frond
swells into globose portions, unequal in size, filled with a multitude of
roundish or oval granules." Grev.
3. P. botryoides, Lyngb. (small clustered Palmella); " minute,
fronds densely crowded globose somewhat lobed green suborbicular,
granules elliptical." Grev.—Ag. Syst. Alg. p. 14. Grev.
Crypt. Fl. t. 243./. 2. Byssus botryoides, Huds.
On heathy places, in moist situations, common.
4. P. montdna, Ag. (Mountain Palmella); between gelatinous
and coriaceous much and variously lobed curled dark-purple,
granules crowded frequently quaternate. Hook.—Ag. Syst.
Alg. p. 14.
—
P. alpicola, Lyngb. Hydroph.Dan. t. 69.— Ulvamon-
tana, Lightf—E. Bot. t. 2193. M'Culloch, West. Isles, v. 2.
p. 413. t. 30.
On the mountains, Isle of Skye and W. coast of Scotland. Glen
Catcol, Arran, Dr. M'Citlloch. Lying on the ground, but not attached
to it, in stony moist places on Goat-fell, Arran, Hooker.— According
to Lightfoot, this is the " Mountain Dulse" of the Scotch, and " the
Highlanders wash it, and rub it between their hands in water, so as to
make a paste, with which they purge their calves." On the mountains of
Arran, this lies unattached among loose wet stones, covering them in a
straggling manner to a considerable extent. Each frond is an inch or
—