224 CRYPTOGAM1A ALG;. 



Fucus fastigiatus et furcellatus, LIGHTF. Scot. 930-2. F. fastiyia- 

 tus, WITH. iv. 123. F. lumbricalis, Eng. Bot. t. 824. 



Hob. Coasts of N. Durham and Berwickshire, very com- 

 mon. Winter. 7/ 



127. HIMATHALIA. 



1. //. lorea, compressed, dichotomous, elongate, springing from 

 a stalked cup-like base. (Sea thongs.) GREV. Alg. Brit. 20. Fu- 

 cus loreus, LIGHTF. Scot. 920. WITH. iv. 104. NEILL in Edin. 

 Encycl x. 19. HOOK. Scot. ii. 96. WAHL. Fl. Lapp. 499. 



Hab. On rocks at low-water mark, common on the coast of 

 Berwickshire. Spring. Q 



" The first rudiment of this fucus exactly resembles a Pezi- 

 za, or a smooth, circular concave disc like a saucer, an inch 

 or more in diameter, of a livid colour, and tough coriaceous 

 substance, supported by a cylindrical footstalk, about half 

 an inch long." From the centre of this leather-like cup, 

 which WAHLENBERG and GREVILLE consider the true 

 frond, the receptacles shoot, reaching often a length of 6 

 feet, and divided in a regular dichotomous manner into 

 long linear segments tapered at the ends. The whole has 

 been aptly compared to a leather-thong. " In the north 

 of Scotland, a kind of sauce for fish or fowl, somewhat re- 

 sembling ketchup, is made from sea-weeds, frequently from 

 the cup-like frond or base of F. loreus." NEILL. 



128. LAMINAR! A. 



* Frond ribbed throughout. 



1. L. esculenta, stalk short, percurrent, winged near the base 

 with several plane, nerveless, linear-oblong leaflets ; frond ensi- 

 form, thin, pellucid, greenish-olive, entire. HOOK. Scot. ii. 98. 

 Fucus esculentus,IjiGiiTF. Scot. 938. t 28. WITH. iv. 102. NEILL 

 lib. cit. x. 21. Alaria esculenta, GREV. Alg. Brit. 25. 



Hab. Coast of Berwickshire, not uncommon. 



" The frond varies from 6 to 20 feet in length, with a mid- 

 rib extending the whole way. The mid-rib, stripped of 

 its membrane, is the part chiefly eaten ; but in some places, 

 particularly in Orkney, the pinnse are also eaten, under 



