The English flora - SeaweedAfrica

Ulva.) ALG.F. INARTICULATE. 311
4. P. linearis, Grev. (narrow purple-Later) ; frond linear or
linear-lanceolate acute, the margin nearly flat. Grev. Alg. Brit.
p. 170. t. 18.— Ulva purpurea, var. elongata, Lyngb. Hydroph.
Dan. p. 20.
Rocks beneath Peakhead, near Sidmouth, within high-water mark,
Greville. At Dunmore, near Waterford, Miss Anne Taylor. ©. April
and May.—3—5 inches high, supported on a very short stipes. Fructification,
oval granules not 'arranged in a quaternate manner, but partly
scattered and partly in lines.
47. Ulva. Linn, (part of). Ulva, or Green-Laver.
Frond membranaceous, of a green colour, plane (in some cases
saccate, and inflated in the young state). Fructification ; minute
granules, mostly arranged in fours. Grev. Alg. Brit. p. 171.
t. 18.—Name; according to Theis, from Ul, water, in Celtic;
applied to some aquatic plant.
* Marine species.
1. U. latissima, Linn. Suec. (broad green-Laver) ; frond plane
widely oblong or roundish waved of a full green colour and
very tender substance. Grev—Linn. Fl. Suec. (not Sp. PL).
Ag. Sp. Alg. v. 1. p. 607. Grev. Alg. Brit. p. 171— U. Lac-
tuca, E. Bot. t. 1551.— U. Lactuca, var. latissima, Light/.
Scot.
Abundant, on rocks, stones, &c. in the sea. ©. Summer and Autumn.
—" Most authors consider this as a larger state only of the following.
Both are, I believe, indiscriminately eaten under the name of green- Laver,
or Oyster-green, being served at table with lemon-juice, in the same
waves the jnople-Laver. This diet is esteemed good,as almost all esculent
vegetables are, for scrophulous habits. Lightfbot says that the inlanders
ascribe to it an anodyne virtue, and bind it about the forehead ami
temples to assuage headache in fevers, and to procure Bleep.
2. U. Lactuca, Linn. (Lettuce g rcen-Laver) ; frond at first
obovate Baccate inflated at length cleft down to the base, the
segments plane unequal laciniated semitransparent. Grev,—
Ag. Sp. Alg. r. 1. p. 409. (,',rr. Crypt. Fl. t. 313.
and June.
In the sea, on rocks and \ arious marine substances. © . May
3. U. Linxa, Linn, (ribband green-Laver); frond linear-lanceolate
attenuated at each extremity waved at the margin composed
of two closely applied membranes. Grev.— Ag.Sp, Alg*
V. 1. p. 413.— Soli ilia IJiizn. Ag. Syst.
Rocks and stones in the sea. 0. Summer.—The frond is pecul
Dr. Greville says, in being composed of ;i double membrane, bo closers
applied, indeed, as t appear but one. Hence Agardfa srrangea it with
StSenia in hit Systems Algarum. "This plant deligfati to gro* in
those gravelly ipoti where the fresh water oozes up during the ebb-tide.
In such situations, it ia m>t uncommon to find specimens I feel in length
with a diameter not e» ending two incbi " ( 'arm.