OF ARTS AND SCIENCES. 247 



23. C. helUdifora, Schasr. Th. of minute, dissected squamules; po- 

 detia cartilaglneous-corticate, elongated, ventricose-cylindrical, glabrous, 

 becoming at length densely clothed with dissected squamules, yellowish, 

 at length cinereous-green ; scy.phi extremely narrow ; apoth. (often 

 conglomerate, or symphycarpeous), scarlet. Fr. Lichenogr. p. 237. 

 ScJmr. ! Spicil. p. 21. Floerk. ! Clad. p. 95. 



On the earth, in alpine districts ; White Mountains. Greenland, 

 Floerke. 



24. C. Hookeri, Tuckerm. Th. of rather thick, large, ascendant 

 squamules; podetia cartilagineous-corticate, elongated, cylindrical, gla- 

 brous, becoming at length squamulose, sulphur-yellow ; scyphi cupulse- 

 form ; apoth. scarlet. 



On the earth ; Newfoundland, Herb. Hook. ! This beautiful species 

 resembles C. deformis in some respects, but belongs to the present sub- 

 division, and seems very distinct from every other scarlet-fruited Cla- 

 donia with which I am acquainted. I venture to inscribe it to the illus- 

 trious botanist who first proposed a complete survey of the cryptogamy 

 of British America, and who has done more than any other to illus- 

 trate it. 



25. C FJoerkiana, Fr. Th. squamulose; podetia cartilagineous- 

 corticate, cylindrical, slender, glabrous, becoming at length granulate- 

 verrucose or squamose-decorticate, greenish and pallescent, nigrescent 

 at the base ; scyphi passing into somewhat digitate, fastigiate branch- 

 es ; apoth. scarlet. Fr. Lichenogr. p. 238. Floerk. Clad. p. 99. Li- 

 chen digitatiis, E. Bat. t. 2439. Icones, Dill. Muse. t. 15, /. 19, c. 

 Laur. in Sturm's Fl. t. 14, d. 



On the earth, decaying logs, dead wood, and rocks, common and fer- 

 tile ; New England. < 



** Epidermis of the podetia membranaceous, dissolving into a fine 



dust. 



26. C. macilenta, Hoffm. Th. squamulose; podetia cylindrical, 

 slender, membranaceous-corticate above, becoming hoary-pulverulent ; 

 scyphi narrow, tubseform with an erect margin, or obsolete ; apoth. 

 scarlet. Fr. Lichenogr. p. 241. — a. fJifonnis, Fr. ; podetia very slen- 

 der ; scyphus narrow, entire, or obliterated by a symphycarpeous apo- 

 thecium. Fr.! I. c. C. Jiliformis, Schcer. ! Spicil. p. 19. Tuckenn. 

 Lich. N. E. I. c. Cenomyce hacillaris^ Ach. C. polydactyla, Floerk. ! 



