Hymenomycetee, Polyporacefe, Polyporus. 269 



tibus, usque ad 2 cm. longis ; poris mediocribus, subrotundis, an- 

 gulatis, elongatis vel etiam sinuatis, acie fimbriatis, e flavo rube- 

 scentibus, exsiccatis fusco-lateritiis, '/^-1 mm. latis; carne caseoso- 

 fibrosa, pallide testacea, azona, inodora, sapore amariusculo ; sporis 

 obovatis, hyalinis, nucleo stramineo-flavo, 6 '/,-9 « 5-6 ; hyphis con- 

 textus tubulorum 3-5 [i. crassis; hyphis contextus pilei 4-6 [j,., sub 

 micr. hyalinis. 



Hah. ad truncos Fagi, Prencow Hungariae, autumno (Kmet). 



— Polyporo croceo Pers. affinis, a quo contextu molliori, colore 

 pallidiori et sporis majoribus prmcipue distinguitur. 



54. Polyporus rudis (Pat.) Sacc et Trott., Xanthochrous rudis Pat., 1072 

 Bull. Soc. Myc. Fr. XXIII (1907) p. 83. — Pileo lignoso, duris- 

 simo, sessili, pulvinato-angulato, obtuse marginato, 5-12 cm. lato, 



6-8 longo, 8 cr., strato annoso marginali latissimo, tactu velutino, 

 cinnamoneo, strato hornotino atro valde rimoso-partito; contextu 

 fibroso-radiante, concentrice-zonato, ferrugineo, crassissimo; poris 

 minutis, fusco-cinnamoneis, dissepimentis obtusis, integris; tubulis 

 brevibus, stratosis; sporis ovoideis, levibus, 5 «4; cystidiis pau- 

 cis, spiniformibiis, fuscis, 15-20 ^ 5. 



Hab. ad basim truncorum, Sudan Africse bor. (Chudeau). 



55. Polyporus Ludovlcianus (Pat.) Sacc. et Trott , Xanthochrous Lu- 1073 

 domcianus Patouill., BuII. Soc. Myc. de Fr. XXIV (1908) p. 6. 



— Pileo 20 cm. longo, 15 cm. lato, 15 mm. cr., applanato, un- 

 dulato, grosse radiato-rugoso, velutino scruposo, postice cuneato 

 substipitato, tactu molli, pure ferrugineo, antice recto, margine 

 sinuoso, tenui^ contextu ferrugineo, sericeo; tubulis concoloribus, 

 mollibus, postice decurrentibus, poris rotundis, minutis, laceratis, 

 usque ad marginem productis, primitus albo-irroratis dein fusco- 

 ferrugineis; cystidiis nullis ; sporis copiosissimis, levibus, ovoideis 

 6 V 3,6, ferrugineis. 



Hah. ad truncos emortuos, Louisiane Americ;r (LxiNQLOis). 

 66. Polyporus fusco-velutinus (Pat.) Sacc. et Trott , Xanthochrous 1071 

 fusco-velutinus Patouill., Bull. Soc. Myc. de Fr. XXIV (1908) 

 p. 6. — Pileo sessili, postice cuneato, applanato, rigidulo, circiter 

 10 cm. longo, obscure zonato, brunneolo, pilis raris ferrugineis 

 vestito, margine, recto, acuto, integro; contextu firmo, grosse ra- 

 diato, circiter 12 mm. cr.; tubulis rigidis ferruginosis ; poris an- 

 gulosis, minutis, integris, usque ad marginem productis; cystidiis 

 nullis ; sporis luteo-ferrugineis, ovato-globosis, levibus, 7 >^ 5. 



Hab. ad truncos quercinos, Louisiane (Langlois). 



