TROPICAL POLYPORES 73 



ous and often united with that of neighboring plants at the 

 base, tapering upward, velvety, ferruginous to fulvous, solid, 

 corky, 3-5 cm. long, 2-5 mm. thick. 

 Found once at Cuernavaca, Mexico. 



3. COLTRICIA FOCICOLA (Berk. & Curt.) Murrill 



Pileus membranous, circular, umbilicate, 3-6 cm. in diam- 

 eter, 0.5-1 cm. thick; surface velvety, cinnamon to cinereous, 

 multizonate; margin thin, entire or undulate; context very thin, 

 ferruginous to fulvous, scarcely i mm. in thickness; tubes long, 

 ample, ferruginous to fulvous within, 5-8 mm. long, mouths 

 1-2 mm. in diameter, angular, fulvous, edges thin, toothed, 

 becoming lacerate and collapsed with age, causing the pores to 

 appear much smaller than they really are; spores oblong-el- 

 lipsoid, smooth, pale-yellowish-brown, abundant, i-guttulate, 

 6 X 3.5 M; stipe central, cylindric, slightly enlarged at the base, 

 velvety, ferruginous to fulvous, solid, corky, 2-3 cm. long, 3-5 

 mm. thick. 



Reported twice from Cuba by Wright, but the specimens 

 representing one of these collections, at least, belong to a different 

 species. 



4. COLTRICIA SPATHULATA (Hook.) Murrill 



Pileus small, coriaceous, multiform, varying from dimidiate 

 to reniform or spatulate, or separated into several distinct lobes, 

 0.5-1.5 X 1-2.5 X 0.1-0.2 cm.; surface narrowly zonate, silky, 

 rarely depressed, flavous to ferruginous-fulvous with fulvous or 

 chestnut-colored zones; margin flavous, very thin, undulate to 

 lobed; context membranous, very thin, flavous, with a black 

 line near the surface, scarcely a mm. thick; tubes very short, 

 exceedingly minute, not decurrent, less than I mm. long, mouths 

 angular, stuffed when young, flavous to umbrinous, about 10 to 

 a mm., edges thin, subentire; spores smooth, yellowish-brown; 

 stipe lateral, eccentric or erect, irregular, often branched, velvety, 

 solid, tough, ferruginous to fulvous, 2-5 cm. long, 2-4 mm. thick. 



Frequent throughout on soil or on dead wood. 



36. CRYPTOPORUS (Peck) Hubbard 



Hymenophore subglobose, sessile, epixylous; surface smooth, 

 encrusted; context white, corky; tubes white, concealed at first 

 by a volva, which is perforated at one or more points at maturity; 

 mouths constricted, discolored; spores smooth, hyaline. 



