CRYPTOGAMIA ALGiE. 971 



laciniated on the margins, fo as to rcfemble, 

 in feme meafure, a Lettuce-leaf; growing either 

 fingle t or in clutters, ereft, or reclining on each 

 other. 

 /J, A variety of this fometimes occurs in frefh-water 

 ditches and marfhes, of a dill thinner fubftance 

 than the preceding ; fo tender and (lippery as 

 to be held in the hand with difficulty ; of the 

 fame color with the foregoing, but notfo large. 

 This rifes to the furface of the water in the 

 fpring, turns to a yellow- green color, and be- 

 comes bloated with air-bubbles, as if in a Hate 

 of fermentation. Sec its figure in Dillen. mufc. 

 43. t' 8. /. 2. 



Freih-water Laver. Anglis. 

 y; The ULVA latijfima. Lin. Sp.pl. 1632. n. 4, is 

 aflerted by Gmelin, in his Hijl. fucor. p. 217. to 

 be only a large variety of the ULVA la5iuca, 

 juft defcribed. Poffibly it may be fo -, but may 

 it not be the FUCUS faccharinus^ var. |3. de- 

 fcribed by us ? which fee above. 



The Oyder-Green is eaten in the fame manner as 

 the ULVA iimhilicalis^ n, 2, both in England 

 and Scotland^ but the laft of the two is gene- 

 rally preferr'd, where both are found. 



The Iflanders afcribe to it an anodyne virtue, and 



bind the leaves about the front and temples to 



5 alfuage 



