166 



Mycologia 



Hapalopilus gilvus (Schw.) Murrill, Bull. Torrey Club 31 : 418. 

 1904. No. 10 is probably what Hennings has described as 

 Polyporus illicicola (Engl. Bot. Jahrb. 32: 39. 1903). It 

 differs from the ordinary forms of H. gilvus chiefly in its 

 tomentose-asperate surface. • No. 15a is an old resupinate speci- 

 men, with spores and cystidia corresponding to those of H. 

 gilvus. 



Tokyo, on dead Cornus macro phyllus, Kusano & Nohara, 10; 

 on Quercus sp., Kusano & Nohara, 50. Nikko, on dead Betula, 

 Kusano & Nohara, 15a. 



Inonotus radiatus (Sow.) Karst. Rev. Myc. 3 9 : 19. 1881. 



Tokyo, on living Prunus, Ch. Tanaka, 60. 

 Irpiciporus consors (Berk.) Murrill. Irpex consors Berk. Jour. 

 Linn. Soc. Bot. 16: 51. 1878. Described from specimens col- 

 lected at Kobi, Japan, on the Challenger expedition. 

 Tokyo, on dead stump of Quercus, Nohara, 47. 

 Irpiciporus japonicus sp. nov. 



Pilei sessile, dimidiate, conchate, imbricate, united behind by 

 mostly sterile tissue, 0.3-0.7 X 0.7-1 X 0.1-0.3 cm. ; surface slightly 

 zonate, glabrous, with silky luster, pale isabelline in dried speci- 

 mens; margin thin, undulate, slightly inflexed on drying, ochra- 

 ceous under a lens : context white, membranous ; tubes large, 

 irregular, angular, irpiciform at a very early stage, concolorous 

 with the surface of the pileus, 1-3 to a mm., 3 mm. long behind, 

 shorter in front, edges sharp, toothed : spores hyaline ; hyphae 

 hyaline, 3-4 /x ; cystidia none. 



Type collected on dead Quercus at Tokyo in October, 1908, by 

 S. Kusano and S. Nohara, 28. 



Irpiciporus lacteus (Fries) Murrill, N. Am. Flora 9: 15. 1907. 



Nikko, on a log of Prunus ( ?), Kusano & Nohara, 2. 

 Irpiciporus Noharae sp. nov. 



Pileus semiresupinate, the resupinate portion nearly circular in 

 outline, the reflexed portion dimidiate, thin, conchate, imbricate, 

 1-1. 5 X 1.5-4 X 0.1-0.2 cm.; surface zonate-sulcate, hirsute-to- 

 mentose, avellanous-isabelline with pale fulvous markings ; margin 

 undulate, thin, concolorous, tomentose, inflexed on drying: con- 

 text white, thin, flexible ; tubes large and irregular, shallow, irpi- 

 ciform at an early stage, white to slightly isabelline, 1-2 mm. long, 

 1-2 to a mm., edges sharp, irregular, crested and toothed : spores 

 hyaline ; hyphae hyaline ; cystidia none. 



