1 8 WESTERN POLYPORES 



walled, fragile, bright-yellow, mouths irregularly polygonal; 

 spores smooth, hyaline. 



i. LAETIPORUS SPECIOSUS (Batt.) Murrill 



Hymenophore cespitose-multiplex, 30-60 cm. broad; pileus 

 cheesy, not becoming rigid, reniform, very broad, more or less 

 stipitate, 5-15 X 7-20 X 0.5-1 cm.; surface finely tomentose to 

 glabrous, rugose, anoderm, subzonate at times, varying from 

 lemon-yellow to orange, fading out with age; margin thin, fer- 

 tile, concolorous, subzonate, finely tomentose, undulate, rarely 

 lobed; context cheesy, very fragile when dry, yellow when fresh, 

 usually white in dried specimens, 3-7 mm. thick; tubes annual, 

 2-3 mm. long, sulfur-yellow within, mouths minute, angular, 

 somewhat irregular, 3-4 to a mm., edges very thin, lacerate, 

 sulfur-yellow, the color fairly permanent in dried specimens; 

 spores ovoid, smooth or finely papillate, 6-8 X 3-5 M- 



Common throughout on living trunks of most deciduous 

 and evergreen trees, causing a very serious heart-rot. It is one 

 of the best edible fungi. 



13. FUNALIA Pat. 



Hymenophore annual, epixylous, sessile, dimidiate, often semi- 

 resupinate; surface anoderm, hairy to aculeate; context light- 

 brown, more or less duplex, spongy above, coriaceous to woody 

 below; tubes usually large, thin-walled, more or less lacerate; 

 spores smooth, hyaline. 



i. FUNALIA STUPPEA (Berk.) Murrill 



Pileus corky to woody, variable in size, dimidiate, decurrent, 

 imbricate, convex above, 2-6 X 5-12 X 0.5-3 cm -J surface 

 ferruginous to fulvous, hirsute to villose, azonate, sulcate at 

 times; margin thin or rounded, concolorous, entire or slightly 

 undulate; context isabelline, zonate, corky to woody, duplex 

 in large specimens, being softer above, 0.3-1.5 cm. thick; tubes 

 rather long, 3-12 mm., whitish-isabelline within, mouths rather 

 variable in size, subcircular to angular, distorted with age, 

 averaging about i mm. in diameter, edges thin, fimbriate to 

 toothed, isabelline to fuscous; spores oblong or slightly curved, 

 11-13 X 3-5-4 M- 



Known from California and British Columbia and doubtless 

 occasional throughout the region on dead poplar and willow 

 trunks. 



