58 TROPICAL POLYPORES 



Frequent on dead logs and stumps in Cuba, Porto Rico, and 

 Central America. This species approaches Pogonomyces very 

 closely, forming a connecting link between this genus and 

 Coriolopsis. 



8. CORIOLOPSIS SARCITIFORMIS Murrill 



Pileus thin, imbricate, dimidiate or flabelliform, applanate, 

 usually several times lobed, narrowly attached, sessile, of light 

 weight, 4-6 X 5-8 X 0.5-0.7 cm.; surface slightly zonate at 

 times, uneven, conspicuously adorned with dense, fulvous fibers 

 arranged in a radiating manner and appearing as though originat- 

 ing from the tearing of the cuticle, these fibers gradually wearing 

 away with age, leaving the surface still more uneven and from 

 dark- fulvous to chestnut in color; margin usually rather deeply 

 and many times lobed, thin, yellow below when young; context 

 punky, ochraceous-ferruginous, varying in thickness from I to 3 

 mm.; tubes reaching 4 mm. in length, pale-avellaneous within, 

 corky; mouths minute, circular, 3-5 to a mm., flavomelleous 

 when young, becoming avellaneous or umbrinous and finally 

 chestnut with age, glistening, edges uneven, rather thick at first, 

 thin and lacerate with age; cystidia fulvous, ventricose at the 

 base, tapering to a point, rather abundant, 20-40 X 5-7 M- 



Collected three or four times in abundance on fallen dead 

 trunks in a moist virgin forest in the Tepeite Valley, near 

 Cuernavaca, Mexico. This interesting species has the habit of 

 Hapalopilus gilvus and a surface covering similar to that of 

 Pyropolyporus sarcitus. It is strictly annual and of light weight. 

 No very near relative is known. 



9. CORIOLOPSIS FUMOSA Murrill 



Pileus small, thin, slightly flexible, somewhat bell-shaped, 

 attached by the vertex to the under side of a dead branch, 

 laterally connate, 0.7 X 1.3 X 0.1-0.2 cm.; surface tomentose, 

 narrowly concentrically zonate-sulcate, fulvous to bay, margin 

 thin, undulate, fumosous beneath on drying; context fulvous, soft 

 and spongy above, with a rather firm, fibrous layer next to the 

 tubes; hymenium dark-f umosous-umbrinous ; tubes less than I 

 mm. long, murinous within, firm, mouths regular, angular, 

 very minute, 8-10 to a mm., edges very thin, entire. 



Collected once on dead wood in a moist virgin forest near 

 Jalapa, Mexico. 



