38 SOUTHERN POLYPORES 



Hymenium fuliginous or black. 5. 7. juniperinus. 



Hymenium fulvous. 6. 7. perplexus. 



Spores faintly tinged with brown. 



Surface soft and spongy; hymenophores found on 



living shrubs, often encircling the twigs. 7. 7. ampleclens. 



Surface hard and firm; hymenophores found on 



decaying trunks or roots. 8. 7. radiatus. 



Hymenophore substipitate. 9. 7. ludovicianus. 



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 n. 



Occasional from North Carolina to Florida, chiefly on living 

 trunks of oak. A very abundant and destructive enemy of 

 shade trees in Europe. 



2. INONOTUS DRYADEUS (Fries) Murrill 



Hymenophore of 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; 

 spores subglobose, smooth, 8-10 X 7-8 n, the outer wall hyaline, 

 the inner membrane brown; cystidia 15-35 X 5-9 M- 



Occasional west of the Mississippi River as a root parasite of 

 various species of oak, the large hymenophores appearing near the 

 base of the trunk. Attention is called to recent studies of this 

 species and the next by W. H. Long. 



