SOUTHERN POLYPORES 59 



i. LENZITES BETULINA (L.) Fries 



Pileus thin, coriaceous, sessile, dimidiate to flabelliform, 

 imbricate, conchate, 3-4 X 4-7 X 0.3-1 cm.; surface conspicu- 

 ously tomentose, velvety, multizonate, somewhat uneven, often 

 radiate-rugose to plicate, avellaneous with latericeous zones, 

 becoming olivaceous with age; margin thin, undulate to lobed at 

 times; context very thin, white, membranous, scarcely a mm. 

 thick; furrows slightly anastomosing when very young, 1-2 mm. 

 broad, 3-10 mm. deep, edges thin, entire to undulate, slightly 

 notched with age, cremeous within, ochroleucous to sordid- 

 ochraceous without; spores globose, smooth, hyaline, 6 ju. 



Extremely common throughout on various forms of dead de- 

 ciduous wood and rarely on coniferous wood. 



43. GLOEOPHYLLUM P. Karst. 



Hymenophore small, annual, epixylous, sessile; surface hairy 

 or glabrous, anoderm, often zonate; context tough, brown; 

 hymenium normally lamelloid or daedaleoid, but frequently 

 poroid in some species; spores smooth, hyaline. 



Context avellaneous to umbrinous, furrows about 0.5 mm. broad, i. G. trdbeum. 



Context ferruginous to castaneous, furrows about i mm. broad. 



Surface hirsute. 2. G. hirsutum- 



Surface finely tomentose to glabrous. 3. G. Berkeleyi. 



i. GLOEOPHYLLUM TRABEUM (Pers.) Murrill 



Pileus corky, rather soft, dimidiate, sessile, laterally connate, 

 plane or convex above, nearly plane below, 2 X 4-8 X 0.5-1 

 cm.; surface anoderm, tomentose, smooth or slightly tubercular, 

 usually azonate, opaque, isabelline when fresh, becoming avel- 

 laneous to umbrinous and finally fuliginous behind, changing 

 immediately to ferruginous or fulvous when bruised; margin 

 very thin, nearly entire, ochroleucous; context soft, punky, 

 homogeneous, dull-umbrinous, 1-3 mm. thick; tubes annual, 

 2-4 mm. long, ochroleucous to isabelline within, mouths irregular, 

 daedaleoid or radially elongate, averaging 0.5 mm. in width, 

 edges uneven, isabelline to grayish-umbrinous or fulvous, the 

 transverse walls often splitting with age and giving the hymenium 

 a lamelloid appearance; spores cylindric, smooth, hyaline, 9-12 

 X 3-4 /* 



Common throughout on dead deciduous and coniferous wood, 

 structural timbers in particular. 



