2o WESTERN POLYPORES 



Frequent northward on dead coniferous logs. This species 

 also occurs on deciduous wood. 



1 6. INONOTUS P. Karst. 



Hymenophore annual, epixylous, sessile, dimidiate, simple or 

 somewhat imbricate, variable in size; surface usually anoderm, 

 brown, hairy or glabrous; context brown, thin and fibrous to 

 spongy or corky; hymenium concolorous, usually covered with 

 whitish powder in youth, tubes small, thin-walled; spores 

 smooth, light- to dark-brown. 



Hymenophore typically pileate, 10-30 cm. broad. 



Surface conspicuously hirsute. i. /. hirsutus. 

 Surface glabrous or nearly so. 



Spores pale-brown. 2. /. dryadeus. 



Spores deep-brown. 3. /. dryophilus. 



Hymenophore resupinate so far as known. 4. I. Leei. 



1. INONOTUS HIRSUTUS (Scop.) Murrill 



Pileus thick, compact, fleshy to spongy, dimidiate, sometimes 

 imbricate, compressed-ungulate, 7-10 X 10-15 X 3-5 cm.; sur- 

 face hirsute, ferruginous to fulvous, azonate, smooth; margin 

 obtuse, velvety; context spongy-corky, somewhat fragile when 

 dry, ferruginous to fulvous, blackening with age, 1-1.5 cm. 

 thick; tubes slender, about I cm. long, ferruginous within, 

 mouths angular, 2-3 to a mm., ferruginous to bay, blackening 

 with age, edges thin, very fragile, lacerate; spores broadly 

 ovoid, smooth, thick-walled, deep-ferruginous, 2-guttulate, 7-8 X 

 5-6 /i. 



Reported from California by Harkness. 



2. INONOTUS DRYADEUS (Fries) Murrill 



Hymenophoreof immense size, dimidiate, rarely circular, usually 

 imbricate, applanate or depressed above, convex below, fleshy 

 to spongy-corky, rather fragile when dry, 15-30 X 25-65 X 3-5 

 cm.; surface very uneven, azonate, opaque, hoary-isabelline, 

 anoderm to very thinly encrusted, subshining and bay; margin 

 thick, pallid, entire to undulate, weeping; context thick, zonate, 

 subglistening, ferruginous-isabelline to fulvous, 2.5-4 cm - 

 thick; tubes grayish-umbrinous to fulvous within, 5-15 mm. long, 

 slender, very fragile, mouths whitish when young, becoming 

 somewhat resinous in appearance and finally bay-brown, at first 

 minute, circular, becoming angular, 4 to a mm., edges thin, 

 fimbriate to lacerate, deeply splitting and separating with age; 



