WESTERN POLYPORES 33 



once to yellowish-brown when bruised; spores smooth, hyaline, 

 cylindric to ellipsoid, 5-8 X 2-3 /x. 



Reported from California by Harkness. 



28. LENZITES Fries 



Hymenophore small, annual, epixylous, sessile, conchate; 

 surface anoderm, usually zonate and tomentose; context white, 

 coriaceous, flexible; hymenium lamellate, the radiating gill-like 

 dissepiments connected transversely at times, especially in 

 youth; spores smooth, hyaline. 



i. LENZITES BETULINA (L.) Fries 



Pileus thin, coriaceous, sessile, dimidiate to flabelliform, 

 imbricate, conchate, 3-4 X 4-7 X 0.3-1 cm.; surface conspicu- 

 ously tomentose, velvety, multizonate, somewhat uneven, often 

 radiate-rugose to plicate, avellaneous with latericeous zones, 

 becoming olivaceous with age; margin thin, undulate to lobed at 

 times; context very thin, white, membranous, scarcely a mm. 

 thick; furrows slightly anastomosing when very young, 1-2 mm. 

 broad, 3-10 mm. deep, edges thin, entire to undulate, slightly 

 notched with age, cremeous within, ochroleucous to sordid- 

 ochraceous without; spores globose, smooth, hyaline, 6 p. 



Common in California on decayed wood of oak, alder, and other 

 deciduous trees. It may be expected also on coniferous wood at 



times. 



29. GLOEOPHYLLUM P. Karst. 



Hymenophore small, annual, epixylous, sessile; surface hairy 

 or glabrous, anoderm, often zonate; context tough, brown; 

 hymenium normally lamelloid or daedaleoid, but frequently 

 poroid in some species; spores smooth, hyaline. 



i. GLOEOPHYLLUM HIRSUTUM (Schaeff.) Murrill 



Pileus hard, corky to woody, slightly flexible, imbricate, sessile, 

 laterally connate, often decurrent, oblong-dimidiate to flabelli- 

 form, conchate, 2-3 X 4-8 X 0.3-1 cm.; surface zonate, strigose- 

 tomentose, anoderm, rather uneven, reddish-fulvous to fuliginous 

 or umbrinous; margin rather thick, sterile, isabelline, undulate, 

 finely tomentose, becoming acute and darker in age; context 

 soft-corky, homogeneous, fulvous, about 2 mm. thick; tubes 

 usually lamelloid, anastomosing when young, ochraceous to 

 grayish-umbrinous, 0.5-1 mm. broad, 2-5 mm. deep, edges 

 thin, undulate; in a poroid variety, tubes circular, regular, 2 to 



