U L V A ramulosa.
Green Sharp-branched Laver.
CRYPTOGAMIA Algce.
Gen. Char. Frond membranous or gelatinous. Seeds
solitary, scattered throughout its substance, under
the cuticle.
Spec. Char. Frond tubular, very much branched,
somewhat compressed, green; ultimate branches
scattered, extremely numerous, sharp-pointed.
T h is new species of Ulva, found by Miss Hutchins in
Bantry bay, Ireland, was made known to us by Mr. Turner.
The fronds are numerous, repeatedly subdivided, beset with
innumerable short scattered branches, various in size, but all
agreeing in their sharp awl-shaped form, in which they differ
from all the varieties of U. compressa, 1. 1739, some of which
are very much branched, but their terminations are obtuse.
The colour of U. ramulosa is a fine green, its surface appearing
under the microscope beautifully reticulated; or rather
besprinkled with numerous dots, which we presume are the
seeds. Internally it is tubular, and its substance is membranous
approaching to gelatinous.