PROPERTIES OF CRYPTOGAMIC PLAKTS. 35 



fitlis examined one of the latter, -wliicli measured twelve feet in 

 diameter. Crypt. Eng. 272, and Lind., Nat. Sjst. 339 ; see 

 Stackhoiise's analysis. Tlie yoimg fronds are eaten in Scotland, 

 and also employed as a manm-e. Turner's British Fuci ; "Wade's 

 Plant83 Kariores, 149. As manures, the coriaceous fuci are pref- 

 erable to the succulent. This plant contains six per cent, of 

 mannite. 



Zaminaria hulhosa, Lam. 



FuGus hulbosus, Huds. 

 " 2Mlyschides, Light. 



Lightfoot observes, that this fucus has sometimes grown so 

 large that a single specimen has been a load for a man's shoul- 

 ders. Drs. Goodenough and Woodard mention that it grows " to 

 a vast size — from one to five yards." In Cornwall, it is burnt 

 to make kelp. Flora Scotica ; Obs. on British Fuci ; Linn., 

 Trans, v. 3, 155 ; Wade's Plant^e Rariores, 152. 



Laminaria ][>otatorium 



Furnishes the inhabitants of Australia with a proportion of 

 their " instruments, vessels, and food." Grev., Algse. Brit-^xix. ; 

 Lind., ISTat. Syst. 



Durvillea utUis. 



It constitutes an important resource to the poor on the west 

 coast of South America. Grev., Essai. 



Sjyoivchnus villosus, Agard. j Hairy Sporochnus. Marine 



Comferva mllosa, Huds. [ rocks. 



" Fresh specimens, when spread upon paper, render it trans- 

 parent, as if it had been touched with oil ; but in a short time 

 this transparency disappears." Hassell, in Crypt. Eng. 



Cliorda filum, Lamour. i Common Sea Whip-Lash. Abun- 

 Scytosvphon, Ag. Sp. Alg. -| dant on shores of England. Com- 

 FuGus, Linn. ( mon on northern shores. Harvey. 



It constitutes a part of the fodder upon which cattle are sup- 

 ported in ITorway. Grev. Alg. Brit. xix. Also used in the man- 

 ufacture of kelp. Lind., Nat. Syst. Cordage is made of it. 



