266 



NEW YORK STATE MUSEUM 



Tricholoma Fr. 



The species of Tricholoma^ and all the white-spored, gill-bear- 

 ing fungi to be hereafter described in these pages, dififer from all 

 the preceding species in having no collar on the stem. In this 

 genus the gills are attached to the stem, and are excavated or 

 notched on the edge at or near the stem. It often happens that 

 this notch is so near the extremir.y of the gill that the part 

 attached to the stem is more narrow than the gill just beyond 

 the excavation and causes the gill to appear as, if rounded at the 

 inner extremity. This is an important character, though not a 

 very conspicuous one. The stem is fleshy and generally short 

 and stout. Three species have been tried and approved, and are 

 here described. Others reported as edible belong to our flora 

 and await further trial. 



Cap viscid when moist T. transmutans. 



Cap not viscid, reddish-brown T. imbricalum. 



Cap not viscid, reddish-violaceous T. personatum. 



Tricholoma transmutans Peck. 

 Changing Tricholoma. 



Plate 21. Figs. 1 to 5. 



Pileus viscid when moist, tawny-red, becoming reddish-brown 

 with age ; lamellte whitish or pale-yellowish, becoming dingy or 

 reddish spotted when old ; stem whitish, generally becoming red- 

 dish-brown toward the base, stuffed or hollow, spores white, 

 subglobose, .0002 in. broad. 



The Changing tricholoma has the cap moist and sticky when 

 young and fresh, or during wet cloudy weather. Its color at 

 first is tawny or tawny-red, but with advancing age it generally 

 becomes darker, assuming a cinnamon-red or reddish-brown hue, 

 but sometimes retaining a paler hue on the margin than in the 

 center. The flesh is white and emits a mealy or farinaceous 

 odor, especially when cut. ' The taste also is farinaceous. 



The gills are placed closely side by side and are notched at the 

 inner extremity where they are attached to the stem. A.t first 

 they are whitish or slightly tinged with 3'^ellow, but when old 

 they are much darker and more or less spotted with reddish- 

 brown. 



