96 TROPICAL POLYPORES 



Context soft and punky; margin not lobed. 

 Temperate species, occurring only at 



high elevations in the tropics. 6. G. Curtisii. 



Tropical species. 



Surface shining, yellowish-red to bay or 



dark-brown; tubes 3-5 mm. long. 7. G. subincrustatum. 

 Surface not shining, avellaneous to 

 dull-castaneous; tubes 5-10 mm. 

 long. 8. G. argillaceum. 



Hymenophore sessile, never truly stipitate. 



Pileus small, less than 3 cm. broad. 9. G. parvulum. 



Pileus medium to large, 6-30 cm. broad. 



Surface scaly and glistening like mica from the 



excess of resin. 10. G. nitidum. 



Surface normally laccate. 



Pileus 8 cm. thick and of very light weight. n. G. areolatum. 



Pileus not over 4 cm. thick. 



Surface tuberculose; hymenium cremeous 



when young. 12. G. tuberculosum. 



Surface not tuberculose; hymenium white 



with a greenish tint when young. 13. G. sessiliforme. 



1. GANODERMA PRAELONGUM Murrill 



Pileus corky, orbicular to fan-shaped, plane above, convex to 

 plane below, prominently umbonate behind when young, 4-6 X 

 5-8 X 1.5-3 cm.; surface glabrous, at length rugose and slightly 

 sulcate, laccate, lustrous, castaneous to bay; margin ochraceous, 

 thin, sterile, sometimes proliferous; context punky, homogeneous, 

 isabelline with a fulvous line adjoining the tubes, 1-2 cm. thick; 

 tubes annual, I cm. long, umbrinous within, mouths angular, 

 3-4 to a mm., edges thin, uneven, white to avellaneous, becoming 

 umbrinous when bruised; spores ovoid, dark-brown, 8 X SM; 

 stipe lateral, ascending, cylindric, enlarged above, 10-15 X 1-2 

 cm., glabrous, laccate, castaneous to nearly black, with substance 

 like that of the pileus except for lines of white mycelium at the 

 center. 



Found once on dead wood at Alto Cedro, Cuba, and once in 

 St. Croix. 



2. GANODERMA PERZONATUM Murrill 



Pileus rigid, corky, fan-shaped, thin, concave below, with a 

 prominent umbo behind, 5-9 X 4-8 X 0.5-1 cm.; surface at 

 length glabrous, laccate, subshining, thinly encrusted, 2-3 times 

 shallowly sulcate, densely zonate, the zones conspicuously marked 

 with white and bay; margin subobtuse, free behind, undulate to 

 lobed, shining-latericeous to bay, often forming a border beneath 



