NORTHERN POLYPORES 3 



Surface not encrusted. 



Surface glabrous or nearly so. 23. HAPALOPILUS. 



Surface distinctly hairy. 



Tubes small and regular. 21. CORIOLOPSIS. 



Tubes large and irregular. 22. FUNALIA. 



Context dark-brown. 



Context friable. 27. PHAEOLUS. 



Context tough. 



Tubes entire. 21. CORIOLOPSIS. 



Tubes soon splitting into teeth. 20. CERRENELLA. 



Spores brown. 26. INONOTUS. 



Hymenophore stipitate. 



Spores hyaline. 27. PHAEOLUS. 



Spores brown. 



Pileus inverted, pendant. 28. COLTRICIELLA. 



Pileus erect, stipe central. 29. COLTRICIA. 



Tribe 2. FOMITEAE. Hymenophore large, woody, perennial, rarely small or 

 annual; surface anoderm or encrusted, usually sulcate, sometimes varnished; 

 context punky or woody, variously colored; tubes cylindric, usually thick- 

 walled; spores rounded, smooth or verrucose, hyaline or brown; cystidia fre- 

 quently present; surface of pileus conidia-bearing in a few species; stipe rarely 

 present, the hymenophore usually being sufficiently elevated by its host. 

 Annual forms and species in a few genera connect this group with the Poly- 

 poreae; while the tendency at times to produce a daedaleoid hymenium, shown 

 especially in Porodaedalea, connects it with the Daedaleae. 



Tubes at first concealed by a volva. 30. CRYPTOPORUS. 



Tubes free from the first. 



Surface of hymenophore covered with reddish-brown 



varnish; context punky to corky. 38. GANODERMA. 



Surface of hymenophore not as above. 



Context white, flesh-colored, or wood-colored. 31. FOMES. 



Context brown or latericeous. 



Surface not encrusted; or, if so, context woody. 

 Hymenium porose. 



Spores hyaline. 32. PYROPOLYPORUS. 



Spores brown. 33. FULVIFOMES. 



Hymenium porose-daedaleoid. 34. PORODAEDALEA. 



Surface encrusted ; context punky. 



Hymenophore subsessile, cespitose. 35- GLOBIFOMES. 



Hymenophore sessile, simple or imbricate. 



Spores hyaline or subhyaline. 36. ELFVINGIELLA. 



Spores decidedly brown. 37. ELFVINGIA. 



Tribe 3. DAEDALEAE. Hymenium annual, very rarely perennial, coriaceous to 

 woody, variable in size; surface anoderm, hairy or glabrous, variously marked; 

 context white or brown, fibrous, woody, or punky; hymenium exceedingly 

 variable, normally labyrinthiform or lamelloid, but often poroid or even irpici- 

 form, never stratified; spores smooth, brown or hyaline. Poroid and irpiciform 



