

ACOTYLEDONS. ALG.E. LcUHlTianci. 99 



ft. lullala, frond bullatecl in the centre, margins undulated. Turn. 



Ulva latissima, Linn. F. sacc/iarhtus, E. B. t. 13/6. 

 H.\n. Sou-coasts, abundant. Q. Berriedale, in Caithness, Mr. Borrcr 



and Hook. Common in the Firth of Forth, Mr. Greville. 

 This common species, which grows to the length of G 7 feet, derives 

 its specific name from its being, after it is steeped in fresh water 

 and exposed to the sun, covered with a white efflorescence resem- 

 bling sugar, but nauseous to the taste. It is not the "saccharine 

 I'ucus" of the Icelanders, as has been generally supposed : nor do 

 I think it is eaten at all by the natives of that country. It is said, 

 however, to be eaten in England by the poor, boiled as a potherb ; 

 but I know not whether it has been asserted by any person besides 

 Pallas. Thunberg tells us, that in Japan it is prepared in such a 

 manner as to be quite esculent, and that it is customary there, when 

 presents are made, to lay upon them a slice of this Fucus attached 

 to a piece of paper, folded in a curious manner, and tied with threads 

 of gold and silver. Cattle eat it not unfrequently. 

 Mrs. Griffiths and Mr. Greville are satisfied, from the various observa- 

 tions they have been enabled to make on F. sacchar'mus and F. phyl- 

 litit in a growing state, that the latter is nothing but the young 

 state of the former. 



3. L.digitala, root fibrous, stipes woody cylindrical expanded at 

 its apex into a single cartilaginous flat nerveless roundish leaf 

 quite entire at its margins deeply cleft into numerous ensiform 

 mostly simple segments. Turn. Ag. p, 18. Fucus digitatus, 

 Lighif. p. 935. Turn. Hist. Fuc. t. 162. 



HAD. Sea-shores, frequent. 



From 2 12 feet, or more, in length, olive brown. This and all the 

 larger kinds of Fucioxe much used for manure. Occasionally speci- 

 mens are found with the segments connected at the top, from which 

 springs a new sessile frond ; this Mr. Greville has met with in the 

 Firth of Forth. 



4. L. bulbosa, root hollow swollen into a bulb rough all over, 

 stipes coriaceous flat twisted once at its origin its margins un- 

 dulated in the lower part its apex expanded into a single car- 

 tilaginous flat nerveless leaf entire at its margins deeply cleft 

 into numerous ensiform mostly simple segments, oblong seeds 

 immersed in the margin of the stipes. Turn. Ag. p. 18. Fucus 

 lulbosus, Turn. Hist. Fuc. t. 161. E. B. t. 1/60. Fucus poly - 

 schides, Lightf. p. 936. 



HAB. Scotch coast, but not plentiful ; I-columb-kill, Lightf. At Losie- 

 mouth on the N. E. coast, Jas. Brodie, of Brodie, Esq. 



3 to 6, or even 12, feet long, olive bvown. 



**# F ron d maiibranaccous, ribless. 



5.L.? ligulala, frond between cartilaginous and mernbranaceous 

 linear flat nerveless doubly pinnate, segments linear-lanceolate 

 serrated at their margins with spinous teeth. Turn. Fucus li- 

 qulctus, Liehtf. p. 946. t. 29. Turn. Hist. Fuc. t. 98. E. B. 

 /. 1636. 



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