GENERA AND SPECIES OF MUSHROOMS 



hygrophanous, the difference between the moist cap and the 

 dry being well-marked, and in the lateness of its appearance. 

 Peck. 



Hypholoma incertum; uncertain hypholoma. Species 64. 

 Figure 21 and 31. 



On ground on lawns, pastures, bushy places and b> road- 

 sides in showery weather; May to September; in groups or 

 scanty tufts; edible. 



Cap whitish, tinged with yellow when moist, especially in 

 the center; thin; fragile; watery in appearance and darker 

 when moist (hygrophanous); surface even or radiately 

 wrinkled; the thin margin sometimes wavy or irregular and 

 adorned when young with fragments of the white veil. Flesh 

 white; taste mild, i to 3 inches in diameter. 



Stem cylindric; whitish; hollow; splits easily, i to 3 inches 

 long. 



Gills whitish, turning rosy and then purplish brown in 

 maturity; attached to the stem (adnate); thin; near together; 

 narrow. 



Spores purplish brown; 8-10 x 4-6 microns in diameter. 



It differs from the appendiculate hypholoma by its paler 

 cap, its larger spores, its more gregarious habit and in its 

 habitat (on ground). Peck. 



It occasionally has the cap radiately and areolately rimose. 

 (That is, with cracks in the direction from center and at right 

 angles to this.) Peck. 



Hypholoma perplexum; perplexing hypholoma. Plate X, 

 Species 65. 



On or about stumps and prostrate tree trunks in woods or 

 open places; generally tufted; August to November; edible. 



Cap convex or nearly plane; sometimes with a slight 

 knob at the center; reddish or brownish-red; usually yellow- 



195 



