288 THE AGARICACEAE OP MICHIGAN 



of trees, in coniferous woods. Huron Mountains, Bay View, Sagi- 

 naw, New Richmond. July-September. Infrequent. 



Very distinct by the blackish hairs which clothe the stem. It is 

 apparently limited to wood or debris from coniferous sources. Oc- 

 casional specimens attain quite a large size and often occur singly 

 at the base of pine trees. The cap is sometimes nearly lateral es- 

 pecially when growing in tufts. 



281. Paxillus corrugatus Atk. 



Mushrooms, p. 170, 1900. 

 Illustration: Ibid, PL 18, Fig. 158. 



PILEUS 2-5 cm. broad, lateral, shelving, narrowed down in an 

 irregular wedge-form to the sessile base, convex then expanded, 

 maize-yellow to canary-yellow, with a reddish-brown tinge near the 

 base, glabrous or slightly tomentose, margin at first involute. 

 FLESH pale yellow, spongy. GILLS 2-3 mm. broad, not crowded, 

 regularly dichotomously forked, thin, very wavy and crenulate, 

 sides corrugated, orange-yellow, easily separating from pileus. 

 STEM lacking. SPOBES minute, broadly-elliptical to oval, 3x 

 1.5-2 micr., faintly yellow, olive-yellow on white paper. ODOR 

 characteristic, disagreeable. 



On hemlock stumps or wood. Houghton, Marquette. August- 

 September. Infrequent or rare. 



Known best by the deep orange-yellow color of the corrugated 

 gills and the lack of a stem. 



282. Paxillus panuoides Fr. 



Syst. Myc, 1821. 



Illustrations: Cooke, 111., PI. 878. 

 Berkeley, Outlines, PL 12, Fig. 6. 

 Michael, Fiihrer f. Pilzfreunde, Vol. Ill, No. 50. 

 Sicken, Blatterpilze, PL 28, Fig. 3. 



PILEUS 3-12 cm. broad, sessile, or laterally extended to a stem- 

 like base, petaloid or conciliate, dull yellow to olivaceous-yellow, 

 tinged with brown, downy at first, glabrescent. margin thin, acute, 

 wavy or crisped. FLESH white, soft, not very thick. GILLS 

 radiating from the base, forked, anastomosing, often crisped, close, 



