170 NEW YORK STATE MUSEUM 



trie furrows and can scarcely be said to be scrobiculate or scrupose. It is 

 destructive to the wood of spruce. Also Polyporus variiformis 

 described in the same report should be referred to this genus and take the 

 name, Trametes variiformis. The genus Trametes is so 

 closely allied to the genus Polyporus that it is not in all cases easy to 

 separate and distinguish its species without making a vertical section of a 

 specimen and noticing the character of the trama and the connection of 

 the pores with the hymenophorum. In order to bring together and show 

 at a glance our New York species as now understood, a synoptic table 

 with distinguishing characters is here given of them. 



Synoptic table of New York species of Trametes 



Plant having a pileus (some species also resupinate) i 



Plant always resupinate serpens Fr. 



I Substance of the pileus white 2 



I Substance of the pileus not white , 5 



2 Pileus white or pallid 3 



2 Pileus some other color 4 



3 Pileus broad and thick, zoneless suaveolens (L.) Fr. 



3 Pileus narrow and thin, zonate sepium Berk. 



4 Pileus subochraceous, zoneless serialis Fr. 



4 Pileus reddish tawny, zonate variiformis Pk. 



5 Substance red cinnabarina (Jacq.) Fr. 



5 Substance brown mollis Fr. 



5 Substance pallid 6 



5 Substance tawny or ferruginous 9 



6 Pileus distinctly or strigosely hairy trogii Berk. 



6 Pileus glabrous or soon glabrate , ... 7 



7 Pores rather large, generally oblong, pileus not blackening 



rubescens (A. & S.) Fr. 

 7 Pores minute, round or punctiform, pileus blackening 8 



8 Pores i line long or less scutellata (Schw.) Morg. 



8 Pores more than i Ime long ohiensis Berk. 



9 Pileus persistently tomentose, pores minute. piceinus Pk. 



9 Pileus tomentose when young, becoming scrobiculate or scrupose 



abietis Karst. 

 9 Pileus not tomentose, hard, becoming cracked . pini Fr. 



Polyporus stephensii B. &Br. isa synonym of Trametes 

 serpens. I have found this species in resupinate form only, though 

 it is said sometimes to have a slightly reflexed tomentose margin. 



