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TROPICAL POLYPORES 



rimose; context woody or punky, brown, rarely dark-red; tubes 

 brown, cylindric, stratose, usually thick- walled ; spores smooth, 

 ferruginous or fulvous. 



Pileus thin or of moderate thickness, conchate to applanate, 



never truly ungulate. 

 Context ferruginous to fulvous. 



Surface soon covered with a thick, glabrous, horny, 



dark crust. 

 Tube-layers very prominent, tubes stuffed with 



white mycelium. i. F. grenadensis. 



Tube-layers distinct but not prominent, tubes not 



conspicuously stuffed. 



Dissepiments thick; hymenium concolorous 

 with the context; surface not rimose with 

 age. 2. F. pseudosenex. 



Dissepiments thin; hymenium at length darker 



than the context; surface rimose in age. 3. F. jamaicensis. 



Surface anoderm or slightly encrusted, not becoming 



rimose. 

 Surface conspicuously tomentose, soft to the 



touch; tubes short, fulvous within. 



Tubes 5-6 to a mm. 4. F. linteus. 



Tubes very minute, 8-10 to a mm. 5. F. subpectinatus. 



Surface soon encrusted, hard. 



Tubes avellaneous within, distinctly stratified. 6. F. calcitratus. 

 Tubes fulvous within, not distinctly stratified. 7. F. melleicinctus. 

 Surface becoming blackish and very rimose. 8. F. yucatanensis. 



Context flavous to luteous. 



Surface conspicuously fibrose-lacerate. 9. F. sarcitus. 



Surface inconspicuously tomentose or glabrous. 



Pileus very large, 15-30 cm. broad; context 



marked with interlacing lines of a lighter color. 10. F. extensus. 

 Pileus 8-12 cm. broad; context homogeneous. n. F. sublinteus. 

 Pileus thick, ungulate. 



Surface not becoming conspicuously rimose. 



Pileus 2-5 cm. broad. 12. F. hydrophilus. 



Pileus 8-15 cm. broad. 



Margin only slightly obtuse. 13. F. troyanus. 



Margin very obtuse and rounded. 



Context flavous-ferruginous. 14. F. Swieteniae. 



Context fulvous. 15. F. cinchonensis. 



Surface soon becoming very conspicuously rimose. 



Pileus very large, 12 cm. or more broad, margin 



rounded. 16. F. Cedrelae. 



Pileus scarcely attaining 12 cm. in width, margin 



angular. 



Tubes large for the genus, 3-4 to a mm., thin- 

 walled; spores 7 X 9/*; cystidia none. 17. F. Underwoodii. 

 Tubes 5-7 to a mm., thick-walled. 18. F. dependens. 



