Murrill: Polyporaceae from Japan 167 



'Type collected on dead Hibiscus syriacus at Konodai, October, 

 1908, by S. Nohara, 49. 

 Irpiciporus Tanakae sp. nov. 



Pileus sessile, conchate, imbricate, decurrent behind, 1 X 1-2 

 X 1-0-3 cm - } surface pure white, glabrous, nearly smooth, azo- 

 nate, opaque ;' margin thin, entire, concolorous, slightly striate, 

 strongly inflexed on drying : context white, membranous ; tubes 

 large, irregular, more or less radially confluent, pale isabelline, 

 1-2 mm. in diameter, about 2 mm. long behind, the decurrent 

 edges longer, the dissepiments irregularly toothed, acute: spores 

 elongated, smooth, hyaline ; hyphae hyaline, 2-3 jx ; cystidia none. 



Type collected on dead Cryptomeria on Mt. Takao by Ch. 

 Tanaka, 54a. 



Laetiporus speciosus (Battar.) Murrill, Bull. Torrey Club 31: 

 607. 1904. 



Nikko, on Tsuga sp., Kusano & Nohara, 6. 

 Piptoporus suberosus (L.) Murrill, Jour. Myc. 9: 94. 1903. 



Nikko, Yumoto, on Betula sp., Kusano, 27. 

 Polyporus arcularius (Batsch.) Fries, Syst. Myc. 1 : 342. 182 1. 



Tokyo, on Prunus sp., Kusano & Nohara, 46. ' 

 Polyporus celebicus P. Henn. Monsunia 1 : 12. pi. 1. f. 5. 1899. 



Tokyo, on stump of Quercus glandulifera, Kusano & Nohara, 1. 

 Polyporus Perula (Beauv.) Fr. Epicr. 437. 1838. 



Formosa, on a root of some dead tree, Nakahara, 7. 

 Pycnoporus sanguineus (L.) Murrill, Bull. Torrey Club 31: 



421. 1904. 



Tokyo, on dead stem of Prunus sp., Kusano & Nohara, 13. 

 Formosa, on Pandanus sp., Nakahara, 19. 



Trametes Dickinsii Berk. Sacc. Sylloge Fung. 9: 196. 1891. 

 Collected by Dickins in Japan and named by Berkeley, but not 

 published until the diagnosis was sent to Saccardo by Cooke. 

 It must not be confused with Polyporus Dickinsii Berk. (Jour. 

 Linn. Soc. Bot. 16: 50. 1878), also from Japan, which is very 

 different, being very thin and having large, shallow tubes. Tra- 

 metes nitida Pat. (Jour, de Bot. 4: 17. 1890), described from 

 Tonkin, is a resupinate form very much resembling Tr. Dickinsii. 

 Nikko, on dead Quercus aliena, Kusano & Nohara, 5. Oki 



Province, Kusano & Nohara, 26. 



