OF ARTS AND SCIENCES. 243 



and apices dilated-infundibuliform, or simply perforate in the more 

 slender, much-branched forms. 



11. C cenotea, Schajr. Th. squamulose, dissected; podetia di- 

 chotomous-brachiate, membranaceous-corticate, at length finely glau- 

 cous-pruinose ; axils and fertile apices dilated, infundibuliform, with 

 incurved margins ; ' apoth. sessile, from pale becoming fuscous.' Fr. ! 

 Lichenogr. {sub C. hrachiata), p. 228. C. cenotea, Schcer. Spicil. p. 

 35. Floerk. ! Clad. p. 135. Baomyces dein Cenomyce, Ach. — a ; tur- 

 gid ; axils and apices as above. Fr. I. c. — /5. furcellata, Fr. ; slender, 

 fruticulose ; branches subulate, axils perforate. Fr. I. c. 



On the earth, in mountainous districts. White Mountains ; as yet 

 infertile. 



12. C. parasitica, Schser. Th. squamulose, narrowly erose-lacini- 

 ate and granulate-pulverulent ; podetia delicate, at length besprinkled 

 with scales and granules, divided above into short, somewhat incrassat- 

 ed branches ; apoth. minute (often symphycarpeous), fuscous. Schcer. ! 

 Spicil. p. 37. Lichen parasiticus, Hoffm. C delicata, Floerk. ! Clad, 

 p. 7. C. squamosa, var. delicata, Fr. ! Lichenogr. p. 231. 



Decaying logs, common in mountainous districts ; New England. 

 Pennsylvania, Muhl. (Cf. Fries, I. c) 



13. C. squamosa, HofTm. Th. squamulose, dissected, often some- 

 what pulverulent ; podetia branched, lacunose, at length decorticate, 

 and exasperate with squamaceous granules ; axils pervious, denticulate ; 

 apoth. cymose, fuscous. Fr. Lichenogr. p. 231. — w. ventricosa, Fr. ; 

 podetia ventricose ; axils and apices dilated-infundibuliform. Fr. ! I. c. 

 Cenomyce sparassa, Ach. Cladonia, Floerk. ! Clad. p. 129. — /?. atlen- 

 uata, Fr. ; podetia more slender, attenuate, axils pervious, apices subu- 

 late. Fr. ! I. c. 



On the earth, decaying logs, and stones, most perfect and frequent 

 in mountainous districts ; New England. 



14. C.furcata, Floerk. Th. squamulose, somewhat dissected; po- 

 detia dichotomous-fruliculose, cartilagineous-corticate, polished, green- 

 ish-fuscous ; axils and fertile apices pervious ; apoth. pedicellate, from 

 pale becoming fuscous. Fr. Lichenogr. p. 229. Floerk. Clad. p. 141. 

 — a. crispata, Fl. ; turgid ; axils and apices infundibuliform. Floerk. ! 

 I. c. p. 148, Fr. ! I. c. — ^5. cristata, Fr. ; somewhat turgid ; obliquely 

 dilated and fimbriate-cristate at the axils ; the apices cristate-ramulose. 



