SOUTHERN POLYPORES 



21 



Pileus circular, regular. 



Tubes decurrent, very short, entire; pileus 

 dark-purple, ornamented here and there 

 with paler radiating lines, finely tomen- 

 tose, becoming glabrous. 

 Tubes not decidedly decurrent, denticulate 

 when mature; pileus yellowish to smoky- 

 black, villose, at length glabrous. 

 Pileus trumpet-shaped. 



Margin of pileus ornamented with cilia, which often dis- 

 appear with age. 



Tubes alveolar; stipe setulose or squamulose. 

 Pileus smooth, pellucid, fragile. 

 Pileus fuscous-squamulose to glabrous, opaque. 

 Tubes not alveolar; stipe glabrous. 

 Stipe wholly or partly black or fuliginous, variously attached, 



usually darker than the pileus. 

 Pileus squamose, very large, flabelliform; tubes large, 



alveolar. 

 Pileus glabrous; tubes punctiform. 



Stipe ivory-black below; pileus usually ochraceous, 

 scarcely depressed, margin even, not becoming 

 extremely thin. 



Stipe smoky-black below; pileus usually chestnut- 

 colored, depressed at the center or behind, margin 

 usually very thin and irregular. 



3. P. dibaphus. 



4. P. Polyporus. 



5. P. confusus. 



6. P. arculariellus. 



7. P. arcularius. 



8. P. Tricholoma. 



9. P. caudicinus. 



10. P. elegans. 



11. P. fissus. 



1. POLYPORUS DELICATUS Berk. & Curt. 



Pileus circular, irregular, 1.5 X 1.25 X 0.1-0.3 cm.; surface 

 ochraceous, very smooth, evenly tomentose; margin thin, acute, 

 undulate, inflexed; context pallid, soft and elastic; tubes decur- 

 rent to the base, concolorous, mouths angular, 2 to a mm., pale- 

 yellowish-orange when dry, dissepiments thin, quite collapsed in 

 the single type specimen ; stipe central, short, concolorous above, 

 hard, black and radicate below. 



One small specimen is at Kew, found on dead wood in Ala- 

 bama. It has the appearance of P. fractipes above, but is 

 firmer, with central stipe and tubes far larger and different in 



color. 



2. POLYPORUS FRACTIPES Berk. & Curt. 



Pileus reniform, irregular, about 5 cm. broad; surface ochra- 

 ceous, rugose, tomentose, hispid in some places; tubes very 

 small, 5 to a mm.; stipe irregularly distorted, adnate behind at 

 times, pulverulent, 2.5-4 cm - l n g> 4~9 mm - thick. 



Collected a few times in South Carolina and Louisiana. Ac- 

 cording to some, P. humilis Peck is not distinct. 



