TROPICAL POLYPORES 69 



5. INONOTUS LEPROSUS (Fries) Murrill, comb. nov. 



Pileus thick, pulvinate, narrowly attached and nearly circular 

 to dimidiate, 5-12 cm. broad, 3-5 cm. thick; surface nearly 

 smooth, azonate, short-tomentose in spots, finally glabrous, 

 fulvous or chestnut in dried specimens; margin thin, con- 

 colorous, dark-colored when bruised; context soft, punky, 

 isabelline to pale-umbrinous, 2 mm. thick in front, about I cm. 

 thick behind; tubes long and large, ochraceous when young, 

 becoming reddish-fulvous when bruised, 1.5-2 cm. in length, 

 mouths alveolar, 0.5-2 to a mm., sometimes becoming irregular 

 and lacerate with age, edges thin, entire or at length deeply 

 toothed; spores broadly ellipsoid, smooth, rather thick- walled, 

 deep-fulvous, 6.5-7 X 5-6 /*; cystidia none. 



Found twice in the island of St. John and once in Mexico, on 

 dead wood. This species was formerly placed in Favolus, but 

 recent collections show it to belong in Inonotus. 



6. INONOTUS CORROSUS Murrill 



Pileus conchate, clasping, simple or imbricate, 3 X 5 X 1-4 

 cm. ; surface ferruginous to fulvous, furrowed and much corroded 

 in age; margin entire, obtuse, tomentose, honey-yellow; context 

 thick, spongy, fibrous, ferruginous, perforated by insects soon 

 after maturity; tubes very short, only i mm. long each season, 

 8 to a mm., fulvous, subcylindric, edges entire, obtuse to acute; 

 spores lenticular, smooth, pale-ferruginous, 4 n in diameter, 

 i fj. thick. 



Common on decayed vines and trunks in southern Florida 

 and the West Indies. Closely related to /. fruticum. 



7. INONOTUS WILSONII Murrill 



Pileus dimidiate, applanate, sessile, 2-3 X 4-6 X 0.5 cm.; 

 surface anoderm, velvety-tomentose, fulvous, marked with a 

 few shallow, concentric furrows; margin thin, entire, concolorous, 

 sulcate, deflexed in drying; context soft, punky, homogeneous, 

 ferruginous-fulvous, 1-3 mm. thick, separated from the tubes 

 by a very thin, black layer; hymenium ferruginous, glistening; 

 tubes 1-2 mm. long, 6-9 to a mm., isabelline within, mouths 

 polygonal, regular, edges thin, entire; spores lenticular, smooth, 

 pale-ferruginous, 3-4 n in diameter, 1-1.5 M thick. 



Found once on dead logs in Honduras. 



