248 PROCEEDINGS OF THE AMERICAN ACADEMY 



Clad. p. 108. — /?. clavata, Fr. ; podetia ventricose, subulate at the 

 apices or branched, substerile. Fr. I. c. 



On the earth, decaying logs, dead wood, and rocks ; connmon in 

 mountainous districts, and fertile ; New England. Pennsylvania, Muhl. 

 Ochrocarpous states of this species, in which the bright scarlet of the 

 apothecia is changed to a pale yellow, occur in our mountains, but less 

 frequently than similar forms of C. Floerkiana. 



27. C. digilala, Hoffm. Th. squamulose ; podetia cylindrical, be- 

 coming ochroleucous-pulverulent above; scyphi narrowed, with an in- 

 curved, entire margin, becoming at length ampliate, and the margin 

 somewhat proliferous-palmate ; apoth. scarlet. Fr. Lichenogr. p. 240. 

 Schcer. ! Spicil. p. 22. Floerk. ! Clad. p. 102. Lichen digitaius, L. 

 Icon, Laur. in Slurm''s Fl. t. 15, 16. — «. platyphyllina ; lobules of 

 the thallus dilated, somewhat entire ; scyphi mostly entire. Fr. I. c. — 

 (}. microphyUina ; squamules of the thallus rather small ; scyphi mostly 

 palmate-i'amose. Fr. I. c. 



Decaying trunks, and moist earth among mosses, in mountainous dis- 

 tricts, fertile ; New England. 



28. C. deformis, Hoffm. Th. squamulose ; podetia elongated, cy- 

 lindrical or ventricose, becoming sulphureous-pulverulent above ; scyphi 

 somewhat narrow, becoming at length cupulagform and dilated, with 

 an erect, crenate-dentate margin ; apoth. scarlet. Fr. Lichenogr. p. 

 239. Schcer. ! Spicil. p. 23.- C. crenulata, Floerk. ! Clad. p. 105. 



On the earth, common upon mountains, a conspicuous Lichen, fer- 

 tile ; New England. Northward to Arctic America, Rick. Green- 

 land, Floerke. 



29. C. sulphur ina, Michx. (sub Scyphoph.). Podetia simple, at first 

 very simply and slightly scyphiform, thick, submembranaceous, at 

 length subclavate-elongated, smooth, the apices finally irregularly sub- 

 divided, and rimose-perforate, hoary-sulphureous; fertile scyphi small ; 

 apoth. confluent, black-fuscous. Scyplwphorus sulphurinus, Michx. Fl. 

 2, p. 328. Cenomyce, Ach. Lichenogr. p. 557. Ach. Syn. p. 265. 



On the earth, Canada, Michaux ! Fries. This is the " Lichen coc- 

 ciferus ; major, Dill. t. 14, f. 6, M," of Michaux's herbarium, the speci- 

 mens appearing to me, at the time I examined them, to resemble some 

 states of C. deformis. Fries observes incidentally (Lichenogr. p. 237) 

 upon Canada specimens (' specimina authentica Canadensia ') of Mi- 

 chaux's Lichen, that the podetia do not become squamulose, that it has 



