CLASSIFICATION OP AOARIl 



Section ill. Hygrophani. Pileus hygrophanous. Cystidia !»:• 

 cm on .uill*. 



302. Pholiota acericola Pk. 

 X. Y. State Mus. Etep. 25, 1st::. 



PILEUS 2-7 fin. broad, broadly convex then plane, Bometim 

 depressed in age, hygrophanous, glabrous, varying rugost reticu- 

 lated to rugulose, yellowish cinnamon | moist I often darker on di>k, 

 paler when dry, qo1 striate on margin. FLESB rather thin. OILLS 

 adnate becoming Binuate, close, somewhal narrow to moderately 

 broad, pallid, or tinged gray ;it first, then cinnamon. STEM i LO 

 cm. Long, 5-10 nun. thick, equal or tapering upward, Btuifed then 

 hollow, fibrillose-striate, whitish, fuscous a1 base. \\\i I 

 large, membranous, flabby, persistent, deflexed, radiately striate on 

 upper surface, and stained cinnamon by tin- Bpores. SPORES ob- 

 scurely 5-angled or obovate, truncate "i "/" < ml. pointed ai basal 

 end, 9-10x5-6 micr., cinnamon and tinged rusty in m;i>^. CYS 

 TIDIA short, much swollen below, abruptly narrowed to ;i short 

 obtuse prolongation, L8-20 micr. thick below, aboul 25-30 micr. long, 

 aumerous on sides of gills. 



On much decayed logs of hard maple and beech in mixed w Is 



of northern Michigan, and on debris, etc., of maple w 1- in the 



south. Common around Bay View, Negam Ann Arbor. June- 

 August. 



Well characterized by the reticulate rugose pileus, the large flabby 

 annulus and the cystidia. Individual caps varj from nii; 

 almost even, the latter becoming rugose on drying, rarely Is the 



rugOSity visible except under ;i lens. The color of the pileUS IS often 



more ochraceous than cinnamon. It prefers to gro* on suj 

 maple wood, often on limbs or decayed twigs or on debris. P< 

 says the rugosity disappears on drying while in m 

 found it to become more prominent. White mycelial stranda often 



connect the base of the stem with the BUDStratum. 



