28 NATURAL HISTORY BULLETIN. 



19. POLYPORUS FRONDOSUS I^n'cS. 



Very much branched, fleshy, somewhat tough; the pileoli 

 very numerous, dimidiate, extended, at length spatulate, yel- 

 lowish fuscous; stipes all united into a ver}' short trunk; pores 

 firm, whitish. 



This is the fungus distributed N. A. F. 2103; found here not 

 rare every autumn from year to year. The pileoli form unit- 

 edly a frondose mass, conic in outline, quite symmetrical seated 

 upon the ground, slightly rooting. The prevaiUng color 

 above is some shade of gray or slate, below white where the 

 rather large pores run down the multitid branching stipes. 

 The ultimate pileoli 1-2 cm wide, the entire fructification 

 sometimes as much as 30 cm in diameter. 



C. Pilci stipitate, the stipe central or lateral. 



a. Stipe entire or at the base, hlaek. 



20. PoLYPORUS ELEGANs {BiilUard) Frics. 



Pileus fleshy but soon hardened, becoming woody, explanate, 

 smooth; the stipe eccentric or lateral, glabrate, paUid, becom- 

 ing abruptlv black below, rooting; pores small roundish even, 

 white becoming yellowish. 



Very handsome, but not common on trunks of various 

 species. Recognizable by its abruptly black foot, thick mar- 

 gin, non-decurrent pores and flat or only slightly depressed 

 disk. Probably, however, in all these species when the stipe 

 is very eccentric, there is a tendency to decurrent pores. N.. 

 A. F. 2303. 



21. P01.YPORUS YARius Fries. 



Pileus variously formed, of tough fleshy consistency soon 

 becoming woody, then glabrous, feebly virgate; stipe eccentric 

 or lateral or obsolete, smooth, becoming gradually black at 

 base; pores decurrent small, round, unequal, at first whitish 

 then brownish. 



Not ver}' common. Our specimens offer two types, that 

 which is perhaps normal, has the margin irregular, lobate or 



