Murrill: Polyporaceae of North America 103 



The following notes are appended to the description : 



" Pileus dimidiatus, sessilis, peltato-adnatus, reniformis, 2 unc. 

 circiter transversim latus, passim plures imbricati, dilute ferrugin- 

 eus, non priorum instar incrassatus, sed tenuis applanatus subflex- 

 ilis, rigescens tamen, sulcis concentricis concoloribus exaratus (nee 

 a basi radiato-rugosus), glaber. Margo acutus, passim incisus, 

 concolor. Contextus floccosus, dilute ferrugineus. Pori medii, 

 regulares, 4-6-goni, obtusiusculi, dilute cinnamomei. — Inter fungos 

 Americanos inveni, sed locum specialem ignoro." 



The type of the species I have not seen, but the description 

 indicates that it is not far from Favolus tenuis (Hook.). This opin- 

 ion is strengthened by comparing Hexagona fasciata Berk., which 

 Fries says is very near his Hexagona unicolor. 



Certain resupinate forms, such as Hexagona cavbonaria B. & 

 C. (Grevillea 1: 68. 1872), Hexagona pallens Sacc. (Misc. Myc. 

 2 : 14. 1884) and Hexagona vittata Ell. & Macbride (Bull. Iowa 

 Lab. Nat. Hist. 4 : 68. 1896), described from South Carolina, 

 Mexico and Nicaragua respectively, hardly come within the scope 

 of the present paper. 



New York Botanical Garden. 



