SAPROPHYTIC FUNGI OF EASTERN IOWA. 29 



crenate, the stipe very short; the other seems to be more like 

 the variety (tihccfonnis, the stipe is longer, the pileus thin 

 especially at the margin and infundibuliform. Very handsome 

 little fungi requiring further investigation. 



22. POLYP'OKUS I'ICIPES I^n'cS. 



Pileus from flesh\', becoming rigid, thin, glabrous, smooth; 

 depressed behind; stipe eccentric or lateral, tirm, at tirst velu- 

 tine, then nude, punctate, black to meet the decurrent pores; 

 pores round, thin, small, white then yellowish or gilvous. 



Rather common much larger than the preceding, reaching 

 10 cm, generally imbricate or two or three together. Young 

 specimens chestnut-brown above, changeable velvety below, 

 the pores on the lower surface of the stipe decurrent, the 

 upper surface black and minutely punctate. With age the 

 margin becomes pale, the depressed disk black. N. A. F. 705. 



23. POLYPORUS SQUAMOSUS [IllldsOll) J^r/'CS. 



Pileus tough-fleshy. flabelliform, ochraceous, variegated with 

 broad, appressed, spot-like scales; stipe eccentric or lateral, 

 thick, reticulate above black at base; pores thin, at first small, 

 then ample, lacerate, pallid; spores 5x12. 



Our single specimen is from the w^estern part of the state 

 where the species is said to be not rare. The pores are at 

 maturity very large, larger than in any other species in this 

 section. 



24. PoLYPORUS RADICATUS ScJlZVeiuitz . 



Solitary; pileus pulvinate, applanate, the margin inflexed, 

 umbilicate, pale, soot}-, sub-tomentose; stipe arising from a 

 long, fusiform, corky root, C3'lindric, dilate into the obconic 

 hymenium; pores short, regular, rather large, obtuse. 



Rare; on the ground in woods in autumn (September). 

 In making the original description a small plant was used -'3- 

 4 cm wide, 3-5 cm high." Our specimens are about eight 

 times as large. A small one has not yet been found here, so 

 that this species is recognizable among our black-footed forms, 

 simply by its great size. The context w^hite, soft corky. 



