20 BULLETIN 175, U. S. DEPARTMENT OF AGRICULTURE. 



Mycena galericulata. (Edible.) 



Cap conical, bell shaped, umbonate when expanded, dry and smooth, brownish 

 gray, striate to the umbo; gills white to flesh colored, adnate, slightly decurrent, 

 rather distant, unequal, connected by veins; stem hollow, rigid, polished, villose at 

 base. 



Cap three-fourths inch to 1J inches broad; stem 1 to 3 inches long, 2 lines thick. 

 (PL XVII, fig. 1; from F. E. Clements.) 



This is an extremely variable species. Authors sometimes recognize three varie- 

 ties, longipes, expansus, and calopus. The variety longipes is distinguished by the 

 extreme length of the stem, the variety expansus by the breadth and expansion of its 

 cap, and calopus, the most attractive variety, by the chestnut-colored stem. The 

 plants are common and often abundant, generally growing in clusters united by the 

 downy hairs of the' base of the stems. Both caps and stems of young plants are re- 

 ported edible and as possessing a delicate flavor. 



Mycena polygramma. 



Cap conical, bell shaped, umbonate when expanded, smooth, grayish brown, mar- 

 gin striate; gills narrow, white, adnate, and slightly decurrent; stem tough, 

 hollow, shining, striate or sulcate, paler than the cap, villose at base. 



Cap three-fourths to 1 inch broad; stem about 5 inches long and 1 line thick. 



This species closely resembles Mycena galericulata and has the same general habit 

 of growth, the main point of difference being its long, tough, shining striate or parallels 

 grooved stem. 



Mycena pura. 



Cap conical, bell shaped, or convex and expanded, obtusely umbonate, smooth or 

 sometimes rugose in the center, rose colored, purple, or lilac, margin finely striate; 

 gills broad, adnate to sinuate when old, entirely white or colored like the cap and 

 white on the edge, which is sometimes wavy; stem white Avhen young, later colored 

 like the cap and lighter at apex, straight or ascending, hollow, smooth or slightly vil- 

 lose at base. 



Cap three-fourths inch to 1£ inches broad; stem 2 to 3 inches long, 1 to 2 lines thick. 



This species is common, widely distributed, and may be collected in moist woods 

 or open grassy places. The entire plants are of an almost uniform color and have a 

 strong odor of radishes. 



LACTARIUS. 



The distinguishing feature of the genus Lactarius is the presence of 

 a white or colored milk, especially in the gills. The entire plant is 

 brittle and inclined to rigidity. The fleshy cap is more or less de- 

 pressed and frequently marked with concentric zones. The gills are 

 often somewhat decurrent, but in certain species are adnate or ad- 

 nexed, unequal in length, and often forked. The stem is stout, rigid, 

 central, or slightly excentric. 



Lactarius chelidonium. (Edible.) 



Cap firm, convex and depressed in the center, glabrous, slightly viscid when moist, 

 grayish yellow or tawny, at length stained bluish or greenish, generally zonate, mar- 

 gin involute at first and naked; gills narrow, crowded, sometimes forked, and some- 

 times joining to form reticulations, adnate or slightly decurrent, saffron yellow to 

 salmon; stem short, nearly equal, hollow, colored like the cap. 



Cap 2 to 2\ inches broad; stem 1 to \\ inches long, about one-half inch thick. (PI. 

 XVII, fig. 2.) 



