nymenoiuycetie, Polyporacefe, Polyporus. 361 



48. Polyporus canescens Bresadola, Anii. Mycol. XII, 1914, p. 540. — 1356 

 Siibimbricatus ; pileis convexo-applauafcis, sessilibus, laxe sulcato- 

 zonatis, tomentosis, canis, 2-6 cm. latis, 2-3,5 cm. long., substantia 

 candida, suberoso-membranacea; poris rainimis, 8-10 pro mm. e pal- 

 lido griseolis ; tubulis concoloribus, 1-2 mm. longis; sporis non in- 

 ventis ; bypbis contextus bymenii et pilei crassis, fistulosis, sep- 

 tatis, ad septa interdum nodosis, 2-6 \i diam. 



HaJ). ad truncos, D. I^fova Gninea (Schulze). — E grege Pol. ve- 

 recimdi Berk. et C, sed tenuior, carne raagis corapacta, ex bypbis 

 rainus fragilibus et strictioribus coutiata. 



49. Polyporus Graffianus Bres., Basidiora. Pbilipp. III in Iledw. LVI 1357 ' 

 p. 291 (1915). — Imbricato-multiplex, coriaceo-sublignosus ; pileis 

 seraiorbicularibus, toraentoso-scabriusculis, zonatis, alutaceis, 7-8 



V 4-5 cra., 3-4 mm. crassis, postice in stipitem lateralem, 3-4 cm. 

 longura, 1,5 circ. crassum, scabrum productis; poris minimis, sub- 

 rotundis, 10 pro rara., in sicco luride isabellinis; tubulis concolo- 



ribus, 2-.'> mra. longis ; sporis et basidiis non inventis ; bypbis 



bymenii tenuibus, conghitinatis, 2-4 |x, pilei homogeneis vel crasse 

 tunicatis, 3-5, raro 6,5 [a cr. • 



Hab. ad truncos, Luzon, Bataan, ins. Pbilipp, — F. cremeo-tonien- 

 toso P. Henn. (sub Fomes) proxima et forte tautura ejus forraa, sed 

 pilei substantia et superficie scabra distinguitur (an ob aetateni ?). 



50. Polyporus Zellerj Murrill, Western Polyp. 1915, p. 12. — Pileis 1358 

 ilabelbformibus, subplanis, imbricato-caespitosis, 4-6x6-8x0,30, 5 

 ciu., pruinosis v. leviter innato-fibrillosis, deraura glabris, non ni- 

 tidis, isabelliuo-avellaneis, raargine tenui, concolore, subintegro, sic- 

 citate subinflexo, uudubito, non ciliato ; contextu albo, suberoso, 

 boraogeneo ; tubulis albis v. leviter decolorantibus, 1 rara. long., 

 subcybndricis, ore anguloso, perexiguo, acie tenui lacero-dentata ; 

 sporis oblongis, curvulis, 1-guttubxtis, levibus,byabuis, 5-5,5 ^ 2-3,5; 

 stipite laterab', ligneo, albo, tubulis decurrentibus signato, brevis- 

 simo in pileum expanso, 1-2 cra. longo, 5-10 mm. crasso. 



Hab. ad ligna putrida, Seattle Wtisbington, Araer. bor. (S. M. Zel- 

 LER). Similis Polyp. vario. 



51. Polyporus subpruinatus Bresad., Anu. Mycol. X, 1912, p. 495. — 1359 

 Subimbricatus ; pileis suberosis, applanatis, postice saepe decur- 

 rentibus, i^ruinatis v. tomentosulo-scabris, glabrescentibus, ocbro- 

 leucis, 3-5 cra. latis, 2,5-3,25 long. 4-6 rara. crassis, substantia flavo- 

 subo<ibracea ex bypbis 1-7,5 raro 8 [x cr., irregularibus, tenuiter v. . 

 crasse tuuicatis; tubulis 2-3 lura. long. ; poris parvis, rotuudatis, 



