Murrill: Polypores of Temperate North America 21 



pennsylvanicus. Polyporus pennsylvanicus Sumstine, Jour. 



Myc. 13 : 137. 1907. Reported also from Ohio and elsewhere, 



some of the specimens having been called P. pallidus. It has 



smaller scales than P. caudicinus. 

 perdelicatus. See Tyromyces perdelicatus Murrill in Western 



Polypores, p. 9. 



Petersii. Trametes Petersii Berk. & Curt. Grevillea 1 : 66, 

 1872. Described from Alabama and not since collected. See 

 " Southern Polypores," p. 61. 



Pseudotsugae. See Tyromyces Pseudotsugae Murrill in West- 

 ern Polypores, p. 9. 



pusillus. Trametes pusillus C. G. Lloyd, Myc. Notes 54: 774. 

 f. 1165. 1918. Collected in Minnesota by Dr. S. M. Stocker. 

 Type not seen. 



" Pileus small, 1-1^2 cm., dimidiate, white. Margin acute. Surface dull, 

 faintly greyish, unzoned, very minutely pubescent. Pores white, small, round, 

 rigid, with white mouths. Cystidia none. Spores cylindrical, hyaline, smooth, 

 3 X 6 /i. 



" When I first saw this collection I thought of Fomes Ohiensis (cf. Fomes 

 Synopsis p. 218), but it did not look exactly right. The spores I found were 

 entirely different. I do not know of any other species, excepting Fomes 

 Ohiensis with which it can be confused. The pores are not in strata, hence 

 these specimens are not Fomes, but the species may turn out to be a Fomes, 

 the same as Fomes Ohiensis, which was thought at first to be a Trametes. 

 The plant is quite close to a form of Trametes sepium we often find with 

 little pilei, but its habits are different and its pores much smaller." 



putearius. Fomes putearms Weir, Jour. Agric. Research 2 : 

 163. pi. p. 1914. Described from the Northwest on coni- 

 ferous wood, with a preference for larch. I have before me 

 specimens from Weir which appear to match in every particu- 

 lar specimens collected by Bresadola on fir near Trient and 

 labeled "Fomes spongiosus Pers. ( = Fomes tenuis Karsten)." 

 Compare Boletus spongiosus Pers. Syn. Fung. 543 and Boletus 

 resupinatus Bolton, Hist. Fung. 165. pi. 165. It is interesting 

 to have this species so well worked up by Mr. Weir for 

 America. 



" Sporophores hard, woody, very irregularly lobed, recurving, slightly con- 

 chate to applanate, occasionally broadly spreading to typically resupinate. The 

 resupinate sporophores are often a foot or more in length. Pileate forms 12 



