122 C. H. Kaufman 



This is only separable from the Colorado form {A), following 

 Murrill's description, by the rose color which the tubes and flesh 

 assume on bruising or drying, unless the character of a pruinose 

 pileus be important. 



PoLYPORUS ELEGANS Fr. Sept. Infrequent. Leal. Tol- 

 land. (Polyporus varius.) On dead branches of Populus tremu- 

 loides. 



Polyporus fragilis Fr. Sept. Rare. Tolland. On conif- 

 erous log. Spores 4-5 x 1.5 ^l. 



Polyporus hirtus Fr. Rare. Leal. On old stump of Pinus 

 contorta. 



Polyporus leucospongia Ell. & Hark. Sept. Frequent. 

 Leal. Tolland. On old or charred logs of Pinus contorta in 

 forest burns where logs are under dry conditions. 



Polyporus osseus Fr. Rare. Leal. At base of living 

 trunk of Picea Engelmanni on the exposed dead part of a root. 



Polyporus perennis Fr. Sept. Infrequent. Tolland. On 

 the ground under conifers. 



Polyporus resinosus Fr. Sept. Apparently rare. (P. 

 henzoinus, sense Lloyd.) On Abies lasiocarpa. In good condi- 

 tion with surface of pileus hispid-reticulate, with metallic-bluish 

 zones. 



Polyporus ursinus Lloyd. Sept. Infrequent. Tolland. 

 Leal. On old logs of pine and fir. Spores 8-10 x 2.5-3.5 ^i. 

 Hymenium provided with short hyaline cystidia, often en- 

 crusted at apex. 



PoLYSTiCTUS abietinus Fr. Sept. Frequent. Leal. Tol- 

 land. On logs, etc., of pine, Abies and spruce. 



PoLYSTiCTUS suBCHARTACEUS Murr. Sept. Infrequent. 

 Tolland. On dead Populus tre7nuloides. 



PoRiA MEDULLAE-PANis Fr. Sept. Frequent. Tolland. On 

 coniferous logs. 



PoRiA OBDUCENs Fr. Sept. Tolland. On coniferous log. 



PoRiA sALMONicoLOR B. & C. Sept. Rare. Tolland. On 

 coniferous wood. 



Trametes carnea Nees. Sept. Tolland. Infrequent. On 

 bark of Pinus contorta and Picea Engelmanni. 



