30 WESTERN POLYPORES 



subacute, often becoming truncate; context floccose with harder 

 fibers, zonate, fulvous to bay, with whitish markings in old speci- 

 mens, 5-10 mm. thick, very thin in large specimens; tubes in- 

 distinctly stratified, 5-8 mm. long each season, not separated by 

 layers of context, dark-umbrinous within, mouths circular, not 

 stuffed when young, often covered near the margin with resin, 

 4 to a mm., edges obtuse to acute, entire, pallid to umbrinous; 

 spores broadly ellipsoid, truncate, very dark yellowish-brown, 

 abundantly and roughly echinulate, 7-8 X 5-6 p. 



What appears to be an old and very thick form of this species 

 was found on Quercus agri-folia and Umbellularia in Wild Cat 

 Canyon, near Berkeley, California, November 14, 1913, by V. S. 

 Brown. Younger specimens are desired. E. tornata is abundant 

 throughout the tropics on decayed logs and stumps. 



25. GANODERMA P. Karst. 



Hymenophore large, sessile or stipitate, perennial or annual, 

 epixylous; surface sulcate, covered with reddish-brown varnish; 

 context punky, brown or pallid; tubes cylindric, concolorous; 

 spores ovoid, brown. 



Species found on conifers; context white or nearly so. except 



near the tubes. 



Hymenophore stipitate. I. G. oregonense. 



Hymenophore sessile. 2. G. Sequoiae. 



Species found on deciduous trees; context ochraceous to isa- 



belline above, tawny next to the tubes. 3. G. polychromum. 



i. GANODERMA OREGONENSE Murrill 



Pileus reniform, corky, rigid, convex above, plane below, 10 X 

 17 X 5 cm.; surface glabrous, thinly encrusted, smooth, laccate, 

 very lustrous, bay to black, with a deep groove near the margin, 

 which is cream-colored, rounded, smooth, entire, finely tomen- 

 tose; context punky, white to slightly discolored, homogeneous, 

 with white lines of mycelium near the stipe, 2-3.5 cm - thick; 

 tubes annual, I cm. long, avellaneous within, mouths circular to 

 angular, 3 to a mm., edges thin, entire, white to avellaneous; 

 stipe lateral, very thick, short, subcylindric, 2-4 cm. long, 3-6 

 cm. thick, expanding into the pileus, which it resembles in color, 

 surface, and context. 



Occasional on coniferous trunks in Washington and Oregon. 



