P l a t e LXXIX.
ALARIA LSCULLNTA, Grev.
Gen. C h a e . Boot fibrous. Frond stipitate, membramoeous, furmshed with
a perourrent, cartilaginous midrib; the stipes pinnated ivith ribless
leaflets. Fructification, an oblong sorus, formed of pyriform, vertical
tetraspores, and situate in the accessory leaflets. A l a e i a {Grev.),
from ala, a wing; in allusion to the winged frond.
A l a e i a esculenta; frond elongated, lanceolate, entire; rih narrow, cylindrical;
leaflets linear-oblong or cuneate.
A l a e ia e s cu len ta , Greo. Alg. Brit. p . 2 5 . t . 4 . Hook. Brit. 7 / vol. ii. p . 2 7 1 .
Ilarv. in Mack. Wl. Hib. p a r t 3 . p . 1 7 1 . Wyatt, Alg. Banm. n o . 2 0 3 .
Ilar-o. Man. p . 3 3 . Rost, and Rupp. p . 1 1 . 1 . 1 7 . Endl. Zrd Suppl. p . 3 8 .
Kütz. Phyc. Gen. p . 3 4 7 . t. 3 3 . f. 1.
L a m in a e ia esculenta, Lyngb. Hyd. Dan. p. 33. Ag. Sp. Alg. vol. i. p. 110.
Syst. p. 269. Hook. FI. Scot. part 2. p. 98. Grev. FI. Fdin. p. 282.
La Bylaie, Ann. Sc. Nat. vol. iv. p. 178, t. 9. f. D -F . Spreng. Syst. Veg.
vol. iv. p. 336.
A gartjm e s cu len tum , Bory. Diet. Class. Nat. Hist. vol. ix . p . 1 9 4 .
F u cu s esculentus, Ä » . M a n t.p .l3 5 . FI. Dan. p .3 6 4 . A rf vol. ii.
p 718. Gmc/. iVai. vol. ii. p. 1389. FI. Dan. i. 411. Light/. LI.
Scot. vol. ii. p. 938. t. 28. Huds. FI. Ang. p. 578. With, vol iv p. 9S.
Turn. Syn. Fuc. vol. i. p. 104. Turn. Hist. t. 117. Fng. Bot. t. 17o9.
Esper. Lc. Fuc. vol. ii. p. 30. 1 .126.
F u ous fimbriatus. Girt. Hist. Fuc. p. 200. t. 29. f. 1.
F u cu s tetragonus. Good, and Woodw. in Linn. Trans, vol. iii. p. 140.
F u cu s teres. Good, and Woodw. in LAnn. Trans, vol. iii. p. 140.
F o cu s pinnatus, FI. Norv. vol. i. p. 96.
Fuo u s scoticus latissimus edulis dulcis, Baii. Syn. p. 46. n. 30.
Hab. Fringing precipitous rooks, at low-water mark. Perennial. Winter
and spring. Abundant on the shores of Scotland, and of the north
and west of Ireland. Cumberland, Hudson. Anglesea and Isle of
Man, Bev. H. Bavies. Durham and Northumberland, Winch. Cornwall,
Turner. North coast of Devonshire, Mrs. Griffiths. Weymouth,
Stackhouse. Orkney, Bev. Mr. Clouston.
G e o g e . D i s t e . Abundant in the Ai-ctic Ocean and Northern Atlantic. Iceland
lyngbye. Northern Pacific. Sitka. Kamtschatka. Atlantic shores of
France, Lenormand.
D e s o b . Boot consisting of several radiating, cylindi-ical, branching and grasping
fibres. Stem as thick as a small goose-qufll, naked m its lower part for the
Icnn-th of 2 -4 inches ; then pinnated with leaflets for 1-3 inches more, and
finSly terminating in the midi-ib of the frond. Leafiets numerous, 3 -4 inches
in length, and from a quarter to half an inch in breadth, rib-less, fihlorm at
the base, gradually widening upwards, generally obtuse. Frond, when tuUy
grown, from 3-20 feet in length, and from 3 -8 inches in breadth, membranaceous,
entire, splitting obliquely towards the midrib,.linear or lanceolate,
tapermg to each extremity, the sui-face perforated with mmute pores,
producing tufts of fibres. Frnctijication forming an oblong, reddish brown.
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