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12. Flesh, woody, zonate; pileus brownish-black to ferruginous:. . (13) 
13. Surface of pores velvety — glistening; pileus deeply sulcate; tubes 
with abundant cystidia. Fomes Everhartii E. & G. 
also Mucronoporus Everhartii. 
(Pyropolyporus Everhartii) . 
13. Surface of pores dull; pileus radially cracked in age; spores color- 
less : Fomes igniarious Fr. 
(Pyropolyporus igniarius). 
Fomes lucidus F = Polyporus lucidus Fr. 
Fomes carneus eke = Fomes roseus Fr. - 
Fomes nigricans Fr. = Fomes igniarius Fr. (?) 
Fomes leucopkaens Mont. == Fomes applanatus. 
Fomes marginatus Fr. — Fomes pinicola Fr. 
Fomes salicinus Fr. = Poria inermis Ell. 
Fomes abietis Karst = Trametes Pini Fr. 
Fomes ohiense Berk — Trametes ohignses. 
Polyporus. 
1. Pileus covered with a shining reddish-brown varnish; annual, some- 
times perennial: (2) 
1. Pileus with a different surface (4) 
2. Growing on Tsuga canadensis; fruit-bod}’ with a stem varnished 
like the cap : Polyporus lucidus Fr. 
(Ganoderma tsugae). 
2. Growing on broad-leaved trees; fruit-body sessile or short-stemmed. 
( 3 ) 
3. Fruit-body annual, mostly sessile, margin of pileus acute : 
Polyporus sessile Murr. 
(Ganoderma sessile). 
3. Fruit-body perennial; margin of pileus truncate: 
Polyporus eurtisii Berk. 
(Ganoderma eurtisii). 
4. Fruit-body, stipitate : (5) 
4. Fruit-body not stipitate, shelving or resupinate-reflexed (27) 
5. Flesh brown to yellow-ferruginous; on wood of conifers; or in oak 
woods : (6) 
5. Flesh white: (7) 
6. Pileus large, 15-20 cm. diam., surface hispid to strigose — tomentose, 
ferruginous, stained yellowish; flesh yellow-rusty, fragile when 
dry; stem short and thick; pores sulfur-greenish: 
Polyporus Schweinitzii Fr. 
(Phoeolus sistotremoides) 
