\ VI i i; \l. HISTORY SUH 



Mycena Leaiana Berk. 



Cespitose, viscid, brighl orange. Pileua somewl 

 convex, the margin striate 



Lamellae distant, broad, emarginate-attached, thi 

 darker orange or vermilion. 



Stem mostly curved, strigose at the base. 



Pileus about 2.5 cm. broad ; stem 2.5 to 9 cm. long. The plant 

 is very viscid and stains the fingers thai handle it. 



On rotten wood in woods, Glen Ellyn, River For I Glen- 



coe. August and September. A showy species, wholly brig] 

 orange-reel, becoming paler with age. Spores short-obloi 

 8 to 10 x 6 p. 



Mycena corticola Sebum. 



Pileus hemispherical or convex, subumbilicate, striate, brown 

 sometimes with a purple tint-, and sometimes having a grayish- 

 mealy appearance. 



Lamellae few, distant, subdecurrent, broadly attached i<> the 

 stipe. 



Stem short, curved, stuffed or hollow, concolorous with the 

 pileus. 



Pileus 4 to 6 mm. broad; stem about 12 nun. lonj 



Gregarious on the bark of various living streel and foresl 

 summer and autumn. Very common on Acer saccharinum I... 

 less common on A. saccharin// and A. negundo. Pil< Idom 



more than 5 cm. broad; stems subpellucid when moist. Spore 

 white, globose, 10 to 12 /x. When dry, the pileus closes ah 

 the stem and becomes globose. In this condition the planl 

 not easily discovered. The color of both pileus and stem of 

 dry plants is grayish from the dense furfuraceous coatii 



OMPHALIA. 



Stem cartilaginous, fistulose, but having the tube often s 

 somewhat thickened upwards, widened out like a trump< I 

 pileus; pileus somewhat membranaceous; lamellae truly d< 

 Plants terrestrial or epixylous. Spores white. 

 1. Lamellae venose-connected, yellowish 0. i 



2. Lamellae distinct, white 



2. Lamellae distinct, gray 



3. Pileus even 



3. Pileus silky or flocculose 



4. Pileus white, diaphanous 



4. Pileus whitish or brownish ' 



5. Pileus pale-yellow to orange 



5. Pileus white 



Omphalia campanella Batsch. 



Pileus thin, convex, umbilicate, smooth, striatulal 

 anous, dull reddish-yellow. 



Lamellae narrow, arcuate, venose-connected, yellowis 



