SOUTHERN POLYPORES 



Hymenium umbrinous or fuscous. 



Hymenium umbrinous; surface 



opaque, with very few zones. 

 Hymenium fuscous; surface shining, 



multizonate. 



Pileus not marked with glabrous zones; hymeno- 

 phore semiresupinate; tubes large, hexagonal. 

 Pileus entirely glabrous at maturity. 



Margin of pileus entire or lobed, not becoming 



fimbriate or lacerate. 

 Context punky, 2-3 mm. thick; tubes 6 to 



a mm. 



Context fleshy-tough, 1-3 mm. thick; tubes 

 4-5 to a mm.; pileus almost brittle when 

 dry. 

 Margin of pileus very thin, becoming fimbriate 



or lacerate at maturity. 

 Tubes large, 2-3 to a mm., margin fimbri- 

 ate. 



Tubes only half as large, margin lacerate. 

 Surface of pileus clothed entirely with a conspicuous 



hairy covering. 

 Pileus 5 mm. or more in thickness and several 



centimeters broad; surface roughly hirsute. 

 Pileus much thinner. 

 Pileus 2-6 cm. broad. 

 Pileus scarcely i cm. broad. 



Tubes soon breaking up into long irpiciform teeth. 

 Pileus 5-10 cm. broad and 5 mm. or more thick. 

 Pileus much smaller and thinner. 



Surface ashy-white, villose; plants confined to coni- 

 ferous wood. 



Surface wood-colored, tomentose; plant found on 

 both deciduous and coniferous wood. 



3. C. alabamensis. 



4. C. sector. 



5. C. hexagoniformis. 



6. C. subectypus. 



7. C. ochrotinctdlus. 



8. C. Drummondii. 



9. C. membranaceus. 



10. C. nigromarginalus. 



n. C. sericeohirsutus. 



12. C. sublilacinus. 



13. C. molliusculus. 



14. C. abietinus. 



15. C. prolificans. 



I. CORIOLUS VERSICOLOR (L.) Quel. 



Pileus densely imbricate, very thin, dimidiate, conchate, 

 2-4 X 3-7 X 0.1-0.2 cm.; surface smooth, velvety, shining, 

 marked with conspicuous, glabrous zones of various colors, 

 mostly latericeous, bay, or black; margin thin, sterile, entire; 

 context thin, membranous; tubes punctiform, less than I mm. 

 long, white to isabelline within, mouths circular to angular, 

 regular, even, 4-5 to a mm., edges thick and entire, becoming 

 thin and dentate, white, glistening, at length opaque-isabelline 

 or slightly umbrinous; spores allantoid, 4-6 X 1-2 /*. 



Extremely common throughout on all forms of dead wood. 

 It also causes a serious root-rot in many trees and is a wound 

 parasite on Catalpa. 



