98 TROPICAL POLYPORES 



to nearly black, darker than the pileus, punky and dark-fulvous 

 within. 



Occasional on dead wood in the Bahamas, Cuba, St. Thomas, 

 and Grenada. 



5. GANODERMA STIPITATUM Murrill 



Pileus exceedingly hard and horny, flat and triangular or 

 somewhat circular when young, becoming dimidiate with ungu- 

 late center and thin spreading margin, which is usually lobed 

 and often deeply cleft, normally plane below, but frequently 

 convex because of the upturned margin, 5 X 10 X 3 cm.; sur- 

 face glabrous, varnished, reddish-chestnut, with numerous 

 shallow, concentric furrows, becoming shining-black and at length 

 dull-smoky-brown; margin broad, flat, glabrous, obtuse, 3 mm. 

 thick, crenate to cleft, sterile portion 0.5 cm. wide, white; context 

 hard, woody, 0.5-1 cm. thick, pale-ochraceous, with strands of 

 dark-brown, shining, horny substance extending from the stipe 

 to the margin in a tree-like fashion; tubes plainly though 

 unevenly stratified, 2-4 mm. long each season, 4-5 to a mm., 

 grayish-brown within, mouths circular, white or very pale yellow, 

 edges thick, obtuse, entire ; spores broadly ovoid with attenuate 

 base, light-yellowish-brown, smooth, 3.5X5/* stipe lateral, 

 i X i cm., cylindric, equal, glabrous, shining-black to dull- 

 brown, with substance like the context, apparently absorbed or 

 overgrown as the pileus enlarges. 



Occasional on dead wood in Central America and Grenada. 



6. GANODERMA CURTISII (Berk.) Murrill 



Pileus corky to woody, reniform, convex above, concave below, 

 5-10 X 8-15 X 1-2 cm.; surface glabrous, ochraceous to lateri- 

 ceous or bay, at first laccate, the varnish soon disappearing, 

 broadly sulcate; margin obtuse to truncate, sulcate, ochraceous, 

 entire, glabrous; context soft-corky, zonate, ochraceous above, 

 fulvous below, 5 mm. thick; tubes perennial, indistinctly strati- 

 fied, 5-8 mm. long each season, avellaneous-umbrinous within, 

 mouths circular to slightly angular, 3-5 to a mm., edges 

 entire, white or cremeous, becoming umbrinous; spores ovoid, 

 attenuate and truncate at the apex, yellowish-brown, 9-11 

 X 5~8 M; stipe usually eccentric or lateral, erect or ascending, 

 equal or slightly enlarged above, cylindric, bay, laccate, the 

 substance similar to the context and darker at the center, 

 5-10 X 2-3 cm. 



Found in the Tepeite Valley, Mexico, at an elevation of 2,000 m. 



