r / a / r 7 . 1 /
P l a t e LXI.
SPHÆROCOCCUS CORONOPIFOLIUS, Ag.
G e n . C h a r . Frond c a r t il a g in o u s , c om p r e s s e d , tw o - e d g e d , lin e a r , d is tio lio u s ly
b r a n c l ie d , w i th a n in t e r n a l r ib , c e l lu l a r ; c e n t r a l c e lls f i b r o u s ; m e d ia l
p o ly g o n a l ; th o s e o f t h e p e r ip h e r y m i n u t e , d is p o s e d i n filam e n ts .
Fructification; 1 , s p h e r ic a l tubercles [coccidia) h a v in g a t h i c k , fib ro -
c e llu l a r p e r i c a r p , a n d c o n t a in in g a m a s s o f m in u t e s p o r e s o n a c e n tr a l
p l a c e n t a ; 2 , tetraspores t (u n k n o w n ) . S p h a s e o c o c c u s [Stack.)—
f r om a-4>aXpa a sphere o r globe, a n d m o z , fr u it.
S p h æ e o c o c c u s coronopifolius-, frond very much branched, branches alternate
or subdichotomous, fan-shaped, multifid, ending in acute lacimæ,
fringed with cilia; tubercles immersed in the cilia.
S p h æ e o c o o c u s coronopifolius, Ag. Sp. Alg. vol. i. p. 391. Ag. Syst. p. 339.
Ch-ev. Alg. Brit. p. 138. 1 .15. Hook. Br. FI. vol. ii. p. 304. Harv. in Mack.
M. Hih. pari. 3. p. 263. Wyatt, Alg. Banm. n. 122. Harv. Man. p. 19.
J .A g . Alg. Medit. p. 154. 3rif Suppl p. 53.
G e l id iü m : coronopifolium, Lamour. Ess. p . 4 1 .
K h x n c h o c o c c u s coronopifolius, Kiitz. Phyc. Gen. p. 403. t. 61. f. 1.
F u cu s coronopifolius, Good, et Woodw. inLinn. Trans, vol. iii. p. 185. Stack.
Ner. Brit. p. 83. 1 .14. Turn. Syn. vol. ii. p. 288. Turn. Hist. 1 .122.
E. Bot. i . 1413. Esper, Ic. p. 66. i .l 3 3 . Lamour. Bis. i. 33.
F u cu s coronopi facie, Raii Syn. p. 45. n. 23.
F u o u s cartilagineus, 7i«&. F /. p. 586 [not o f Linn.). B e s f.E l.A tla n t.
p . 425.
H a b . On rooky sea shores, at extreme low-water mark, and at a greater
depth ; mostly cast on shore after a gale. Perennial. Summer and
Autumn. Frequent on the southern shores of England, and southern
and western shores of Ireland. Belfast Bay, Mr. Templeton. Larne,
Dr. Brummond. Very rare in Scotland ; Bute L r . Grm/fe. Ardrossan,
Kilbride, and Arran, Mev. D. Landsborough. Jersey, Miss Turner
and Miss White.
G e o g e . L i s t e . Atlantic shores of Em-ope. Mediterranean Sea.
D e s c e . Boot a flattish disc. Eronds from six to twelve or even eighteen inches
in length, from two to four lines in width, very much branched, distichous ;
the main stems compressed, thickened and two-edged below, becoming
thinner and flatter in th eh upper parts, hregularly divided in a manner
between dichotomous and alternate, the upper branches once or twice forked,
gradually narrower, and ending in fan-shaped many-cleft lesser branches.
Laciniæ tapering to an acute point, their margins, and sometimes those of
the older parts of the frond, fi-inged with slender cilia from half a line to a
line in length, simple, acute, and spreading, in some of which tubercles are
imbedded. Tubercks spherical, imbedded in the cüia below the apex, which