Illustrations of Fungi 



259 



This beautiful species is common on the ground in woods 

 throughout temperate North America, occurring in various forms 

 and colors. It was figured and described in Mycologia 7: 117. 

 pi. 158, f. 3, but is included here because the drawing gives a better 

 idea of the plant. Another species, Prunulus denticulatus, which 

 is found at times in northern New York, is closely related and 

 similar in color, but has a livid-purple cap and blackish-violet 

 gills. 



Gymnopus dryophilus (Bull.) Murrill 

 Collybia dryophila (Bull.) Quel. 

 Oak-loving Gymnopus 



Plate 11. Figure 4. X 1 



Pileus thin, convex or nearly plane, sometimes with the margin 

 elevated, irregular, obtuse, commonly gregarious, 2.5-5 cm - broad ; 

 surface glabrous, varying in color, commonly some shade of bay- 

 red or tan-color ; context white, edible ; lamellae narrow, crowded, 

 adnexed or almost free, white or whitish, rarely yellowish ; spores 

 ellipsoid, 6-7.5X3-4/*; stipe glabrous, yellowish or rufescent, 

 commonly similar in color to the pileus, equal or sometimes thick- 

 ened at the base, cartilaginous, hollow, 2.5-5 cm - l° n g> 2- 4 mm - 

 thick. 



This species has been discussed twice before in this series 

 (Mycologia 3: 101 and 4: 164), but in neither case was the true 

 G. dryopohiius as at present limited correctly figured. It occurs* 

 commonly in woods and groves throughout temperate North 

 America and is often used for food, although there are several 

 closely related species that have not been sufficiently tested for 

 their poisonous or edible qualities. 



Cortinellus rutilans (Schaefr.) P. Karst. 

 Tricholoma rutilans (Schaeff.) Quel. 

 Reddish Cortinellus 



Plate 11. Figure 5. X 1 



Pileus fleshy, campanulate, becoming plane, 5-10 cm. broad; 

 surface dry, at first covered with a dark-red or purplish tomentum,. 



