fù rie n :
P l a t e XX.
PHYLLOPHORA BRODIÆI, J.Ag.
Gen. Char. Frond stipitate, rigid-membranaceous, proliferous, nerveless or
with a vanishing nerve, cellular; cells minute, angular, gradually
smaller toward the surface. Fructification of two kinds, on distinct
plants ;—1, prominent tubercles [nemathecia) seated on the frond, composed
of radiating, monhiform filaments, whose lower articulations are
at length dissolved into spores (?). 3, tetraspores collected into sori,
either toward the apex of the frond, or on proper leaflets. P hyllo-
PfiOBA—from a leaf, and ^opéco, to bear : a proliferous frond.
P h y l l o r h o r a Brodiai ; stem cylindrical, filiform, branched, the branches
expanding into oblong, simple or forked, flat, membranaceous frond-
lets, wliich are proliferous from their extremity ; tubercles sessile on
the tips of the segments.
PiiYiLOPHORA Brodiæi, J. Ag. Alg. Medit. p. 93. Endl. 3rd Suppl. p. 38.
CoccoTYLTis Brodiæi, Kiitz. Phyc. Gen. p. 412.
Ch o n d r u s Brodiæi, Grev. Alg. Brit.-p. \33. Hook. Brit. PI. vol.ii. p. 303.
Mack. PI. Hib. part 3. p. 202. Harv. Man. p. 78.
Sph æ r o c o c o u s Brodiæi, Ag. Syn. p. 27. Lyngh. Hyd. Lan. p. 11. t. 3.
Ag.Sp.Alg.Yo\.i.-<$.23<0. Ag. S y s t.-ÿ.213. Grev.Pl.Pdin.-p.2'M>.
D e l e s s e r ia Brodiæi, Laiva. Pss. p. 37.
F u cu s Brodiæi, Turn. Hist. t. 72. P. Bot. 1 .1966. PI. Ban. 1 .1476.
Var. |3. simplex ; stem short expanding into an oblong, simple or once
forked, rose coloured frond ; sorus elliptical, composed of tetraspores.
Ch o n d r u s Brodiæi, S- simplex, Grev. Alg. Brit. p. 133. Hook. Br. PI. I. c.
Harv. Man. I. c. Wyatt, Alg. Brit. no. 121.
F ucus membranifolius, var. roseus. Turn. t. 74. f. m.
I I ab. On rooks in the sea. Eare. Perennial? Winter and Spring.
Eastern coast of Scotland, in several places. Lossiemouth, Mr. Brodie.
Mouth of the Bann, Co. Derry, Mr. B . Moore. At Bangor, on BeEast
Bay,lTf. W. Thompson. Var. f t Devonshire, i f « . Griffiths. Malahide,
Mr. Mc’Calla.
Ge o g r . D i s t r . Baltic Sea, Mertens. Denmaik, Lgnghye. German Ocean. Atlantic
coast of France, rare.
Descr. Bnot a small disc ; in /3, a widely expanding disc. Prond 2-8 inches
high; the stem cylindrical, variable in length, simple or branched, the
branches expanding into oblong, flat, forked or simple, wedge-shaped leaves,
which vai-y in breadth from two to five hnes, and in length from one to
three inches. The segments are somewhat truncate, often proliferous from
E 2