P l a t e CCLXXXIX.
LAMINARIA SACCHARINA, Lamour.
G e n . C h a r . F r em d s tip ita te , coriaceous o r m embrana ceous, flat, u n d iv id ed
o r irre g u la rly cleft, rib les s. Fructification,, cloudy spots of spores
im b e d d e d in th e th ic k e n e d su rfa c e of some p a r t of tb e fro n d . L a -
MiNARiA {Lamour),— from lamina, a th in p la te , in a llu sio n to th e
flat fro n d .
L am in a r i a saccharina ; stem cylindrical, filiform, expanding into a cartilaginous
.184.
Grev.
or submembranaceous, lanceolate, undivided frond.
L am in a ria saccharina, ÎMTOÎ-.Æss. p. 23. Lyngh. Hyd. Ban. p. 21. t .5.
Ag. Sp. Alg. vol. i. p. 117. Ag. Syst. p. 273. Hook. FI. Scot. part 3. p^98.
Grev. FI. Edin. p. 383. Grev. Alg. Brit. p. 33. Hook. Br. FI. vol. ii. P - ^72.
Wyatt, Alg. Banm. no. 64. Harv. in Mack. FI. Hib. part 3. p. 171. Barv.
Man. ed. 3. p. 30. Endl. 3rd Suppl. p. 27. J. Ag. Sp. Alg. vol. i.
Kiitz. Phyc. Gen. t. 34. f. 1. Kütz. Sp. Alg. p. 574.
L a m i n a r i a latifolia, Ag. Sp. Alg. vol. i . p. 119. Ag. Syst. P - ^73.
Alg. Brit. p. 34. Port, et Rupp. p. 10. Kütz. Syst. Alg. p. 675.
Eucus sacchariuus, Linn. Sp. PI. p. 1630. El. Lapp. p. 364. Gm Hist. Euc
p. 194. t. 37 & 28. Huds. FI. Angl. p. 578. LigUf. FI. Soot. vol. ii. p. 940.
Good, et Woodw. Linn. Trans, vol. in. p. 151. Turn. Syn. vol. ii. p. 198.
Turn. Hist. 1 .163. Esper, Ic. Euc. vol. i. t. 34, 56, & 57. Stack. Ner.
Brit. t. 9. E.Bot. 1.1376. FI.Ban. t . 416.
H ab. Attached to rocks and stones near low-water mark, and to the
depth of five to ten fathoms. Pereunial. Yery common all round
the coast.
G e o g r . D i s t r . Abundant in the Northern O c e a n , extending round the world
Atlantic shores of Europe, as far as the south of France, and ot North
America as far as the Chesapeake (at least).
Desob. Root consisting of several dichotomously branched, clasping fibres, extending
from the base of the stem in a conical form, and fixed to the rock
by discs or fibrils from the ir lower surface. SUm sometimes a few inches,
sometimes several feet in length, from a quarter to half an inch in diameter,
cylindrical, compressed above, and dilating into the base ot a teimmal,
simple lamina. Lamina from one to six or even ten feet in length and
from two to twelve inches or more in breadth, lanceolate, acute or obtuse,
sometimes much acuminated a t the point ; ovate a t base when young, or
more or less cuneate, rarely a tten u a te ; the margin sometimes nearly flat
and even, sometimes undulate or very much curled ; the centre thicker and
more opake than the re st of the frond, and sometimes strongly rugose, with
wavy transverse ribs, sometimes furrowed longitudinally at one surface of
the frond and ribbed at the other, or variously bullated. Fructification,
according to Turner, occupying irregularly shaped spots, in the centre ot