106 TROPICAL POLYPORES 



isabelline to umbrinous or cinereous; margin very thin, fertile, 

 undulate, eroded with age; context very thin, punky, scarcely a 

 mm. thick in most specimens, umbrinous; tubes lamelloid from 

 the first, avellaneous to umbrinous, furrows 1-1.5 mm. broad, 

 2-4 mm. deep, edges thin, entire to irregularly notched and 

 splitting with age, especially behind; spores oblong, smooth, 

 hyaline, 6-8 X 3-4 At. 



Extremely common throughout on dead wood of various kinds. 



2. GLOEOPHYLLUM TRABEIFORME Murrill 



Pileus corky, flabelliform, narrowly attached by a stipitiform 

 base, plane or slightly depressed above, convex below, 2.5-3.5 X 

 3~5-5 X 0.5-1 cm.; surface glabrous, slightly roughened with 

 radiating raised lines resembling appressed fibers, somewhat 

 shining, slightly zonate or sulcate, pale-fulvous with a chestnut 

 tint, marked with two or more narrow, irregular, pale-chestnut 

 zones, margin thin, entire, concolorous; context punky, thin, 

 rosy-incarnate; furrows 0.5 mm. broad, 2-4 mm. deep, fuliginous- 

 chestnut within and without; mouths irregular, varying from 

 nearly circular to daedaleoid or radially elongate, frequently 

 interrupted ; edges thin, uneven or lacerate with age. 



Collected once on dead wood near Xuchiles, Mexico. 



3. GLOEOPHYLLUM HIRSUTUM (Schaeff.) Murrill 



Pileus hard, corky to woody, slightly flexible, imbricate, sessile, 

 laterally connate, often decurrent, oblong-dimidiate to flabelli- 

 form, conchate, 2-3 X 4-8 X 0.3-1 cm. ; surface zonate, strigose- 

 tomentose, anoderm, rather uneven, reddish-fulvous to fuliginous 

 or umbrinous; margin rather thick, sterile, isabelline, undulate, 

 finely tomentose, becoming acute and darker in age; context 

 soft-corky, homogeneous, fulvous, about 2 mm. thick; tubes 

 usually lamelloid, anastomosing when young, ochraceous to 

 grayish-umbrinous, 0.5-1 mm. broad, 2-5 mm. deep, edges 

 thin, undulate; in a poroid variety, tubes circular, regular, 2 to 

 a mm., edges thick, firm, entire; spores ellipsoid, smooth, hyaline, 

 8-12 X 3-4 At- 



Occasional in southern Florida, Jamaica, and Mexico on dead 

 wood. More frequent in the mountains. 



4. GLOEOPHYLLUM BERKELEYI (Sacc.) Murrill 



Pileus corky, subrigid, dimidiate, sessile, imbricate, laterally 

 connate, plane above, usually convex below, 3-5 X 5-10 X 0.8-2 

 cm. ; surface finely tomentose to glabrous and subshining, zonate, 



