An imperfect representation of tins plant has already been
given in our first volume (Tab. XX. Pig. 2, 3, 4,) where it was
regarded as a variety of Phgllopltora Brodiæi, according to the
views of most British botanists. In the last edition of the
Manual’ I have recognized its specific existence under the
name here given, a name adopted from Prof. J. Agardh, who,
in a recent letter, points out particularly the characters which
distinguish this little plant from the original P. Brodiæi. These
characters are,— the position of the sorus of tetraspores ; the
brighter colour of the frond; and the much more widely expanded
root. To these I would add a marked difference in its
geographical distribution ; for while P . Brodiæi is confined to
our northern shores, B . palmettoides is a native, in this country,
only of the south of England, and, on the continent, is found in
the Mediterranean.
hi»-. 1. Fronds of P iiyllopuoka P almettoides -.— tU natural size. 2. Frond-
let with a sons in the (xwire ■.—slightly enlarged. 3. Tetraspores from
the same. 4. Thin slice of the frond, to show s,imcim-e-.— hoth hvjhly
magnified.
■'ÏJ
TS