AND BRITISH AMERICA. 79 



Bon: Lich. Brit. p. 143. Fr. ! Lichenogr. p. 3S7. Icon, E. Bot. t. 

 2503. 



Decaying wood in the New Hampshire mountains. The protruded 

 "disk often as long as the capitukuTi itself, and in the latter case giving 

 the pilidium a miniature resemblance to a painter's brush." Lich. Brit. 



4. C. subtile, Pers., Fr. Cr. filmy, leprous, white-glaucescent ; stipes 

 filiform, flaccid, black ; apoth. lentiform-globose, naked, black ; the mar- 

 gin at length reflected. Fr. ! Lichenogr. p. 388. C. dehile, Turri. ^ 

 Borr. Lich. Brit. p. 151. Icon, E. Bot. t. 2462. 



Decaying wood. Dead trees from which the bark has fallen in 

 mountain forests ; New England. Arctic America, Rich. Apothecia 

 at first white-pruinose. Fr. 



5. C. trichiale, Ach. Cr. of pale, squamulose, crenate granules ; 

 stipes commonly slender, elongated ; apoth. turbinate, and, at length, 

 from the swelling of the yellowish-brown disk, subglobose, white-cine- 

 reous beneath. Fr. ! Lichenogr. p. 389. Schcer. ! Spicil. p. 5. 



Rough bark of trees, as of hemlock ; and on decaying wood ; New 

 England. 



** F us c e s c en t i a , Ft. Apothecia more or less ferrugineous. 



6. C phcBomelanum, Tuckerm. Cr. of scattered, dissected squa- 

 mules, green (and fuscescent) ; apoth. subsessile, ferrugineous-fuscous, 

 at length black ; the powdery, black disk at length surpassing the tu- 

 mid, smooth margin. 



Fir-bark in the New Hampshire mountains, common. I should most 

 readily compare this with Trachylia tympanella, Fr., from which it 

 diSers in its slightly stipitate apothecia, Sec. It is verj' unlike any Eu- 

 ropean Calicium that I am acquainted with, but I think must be refera- 

 ble to the genus. 



7. C. hyperellum, Wahl. Cr. somewhat tartareous, granulose, green- 

 ish-j'ellow ; stipes elongated, thick, firm, dull brownish-black ; apoth. 

 lentiform, ferrugineous beneath ; disk brownish-black. jFj-. .' Lichen- 

 ogr. p. 3S9. Turn. ^ Borr. Lich. Brit. p. 140. Icon, E. Bot. t. 

 1832. 



Decaying wood in the mountains of New England. 



8. C. trachelinum, Ach. Cr. filmy, somewhat smooth, grayish ; 

 stipes elongated, slender, firm, ferrugineous-fuscous, becoming at 



