1000 CRYPTOGAMIA ALGM. 



In fcagnant waters. IV. V. 



It confilb only of a greenifh farina, the particles 

 of which, when view'd with a microfcope, ap- 

 pear to be branched and feathered. Thefe 

 particles concrete upon the lurface of the wa- 

 ter, and form a wide thin film or pellicle. 



Weis in his Plants cryptogamic^ pag. 19. denies 

 it to be a proper vegetable, aflerting it to be 

 composVl of the particles only of decay'd aqua- 

 tic plants, which, being fpecitically lighter than 

 water, float en its furface. 



■phofphorta BYSSUS lanuginofa violacea lignis adnafcens. 



3* hin. Sp.pl. 1638. {Michel, gen. p. 211. Ji. 12. 



tab. 90. fg. 3. Dillen. mufc. p. 4. tab. i, 



/. 6.) 



Violet-color'd ByfTus. Anglis. 



Upon the bark of rotten wood and (licks, in the 



autumn and winter frequent. 

 It creeps upon decay'd wood, in patches of various 

 fizes, refembling a thin downy membrane, of 

 an elegant blue-violet color. 



purpurea 4. BYSSUS purpurea capillacea perennis. (Michel 

 Gen. p. 211. n. 13. tab. 90. /. 2 ?) 

 Crimfon BylTus. Anglis. 



Upon the bafe of the abbot Ajackinncn's tomb, in 

 the ruiii'd abbey at J. Columb-kill. 



I: 



