Murrill: Polyporaceae of North America 32'J 



15. Pileus purple. 15- H. indurata. 

 Pileus yellow or brown. 16. 



16. Margin papulose. 16. H. cucullata. 

 Margin not papulose. 17- H. Taxodii. 



i. Hexagona alveolaris (DC). 



Mentlius alveolaris DC. Fl. Fr. 6 : 43. 18 15. 



Hexagona Mori Poll. PI. Nov. 35. //. 2, j. 18 16. 



Boletus arcularius Schw. Syn. Car. 69. 181S. 



Cantharellus alveolaris Fr. Syst. Myc. I : 322. 1821. 



Favolus canadensis Kl. Linnaea, 7 : 197. 1832. 



Favolus europaeus Fr. Epicrisis, 498. 1838. 



Favolus ohiensis Berk & Mont. Syll. Crypt. 171. 1856. 



Favolus alveolaris Quel. Enchiridion, 185. 1SS6. — Fairman, Proc. 



Rochester Acad. Sci. 2 : 162. 1895. 



This common and widely distributed species has been several 

 times described, the earliest name having been assigned to speci- 

 mens from Europe. No mention is made of the American plant in 

 the description of M. alveolaris from southern France. The plant 

 was apparently known to Fries under its earliest name in 1821, 

 but in 1838 he redescribed it under the name Favolus europaeus, 

 even the genus being different. F. canadensis was described 

 from a single specimen in Hooker's herbarium. The excellent 

 description of F. ohiensis was drawn from several specimens sent 

 from Columbus, Ohio, by Sullivant. In addition to the names 

 listed above, the species has been reported under several others, 

 notably F. Boucheanus Kl. (Linnaea, 8: 316. pi. 5. f. 2. 1833) 

 and F. alutaceus Berk. & Mont. (Ann. Sci. Nat. Bot. III. II : 

 240. 1849). The former was originally collected by Bouche on 

 dead trunks of birch at Lankwitz near Berlin. The latter was 

 described from Bahia, Brazil, and probably does not extend even 

 into tropical America. Faded specimens of H. alveolaris, col- 

 lected especially in the South during late autumn or winter, 

 resemble the Brazilian species in some ways, but authentic plants 

 show them to be very distinct. Var. peponinus B. & C. of F. 

 Boucheanus was doubtless based on these same faded forms of our 

 common species. 



In the exsiccati listed, only American material is considered. 

 The species grows upon dead wood, usually fallen limbs, of vari- 



