CLASSIFICATION OP A.GARH 



edge lb uniformly continuous or straight. Fayod 'Ann. <l. Sci. 

 Nat., 7 Ser., Vol. 9, i>. 346), says thai in the verj young button 

 stage tliey are trul} decurrenl bul his observations were limited 

 to few Bpecies. The color oj tin gills changes .it maturit} or 

 in age in some species, and this character is used to separate 

 the Bpecies under each section into tun groups. Tin* color 

 changes to reddish-spotted, flesh-color, ash} or even black in age or 

 when bruised, and hence it is often impossible to locate a spe< 

 properly until it has been kepi several hours after picking. In 

 some species the uills are verj Barrow; in others, ver} broad, and 

 this is ;i reliable character when well developed plants are ;it hand : 

 poorly-developed or stunted specimens often produce narrow gills 

 in broad gilled species. The gills of some species are easilj separa 

 ble from the trama of the pileus, and such Bpecies have been 

 ferred by some authors to a separate genus: Lepista. There is, 

 however, aot Bufficienl data ;ii hand to know with certainty what 

 Bpecies have iliis character and why, and hence in this report the} 

 are included under Tricholoma. The STEM varies from fibrous 

 fleshy !<• fibrous-spongy; more often quite firm, compart and stout. 

 h lacks the cartilaginous rind of the stem of Collybia, although 

 in dry weather forms a rind is sometimes simulated. '/'. albiflavi 

 dum Pk. often has a distind cartilaginous stem and is grouped un- 

 der Collybia. There is no annulus, the cortina being evanescent 

 when presenl al all, or in a few extreme cases leaving only slight 

 fibrillose remnants on its surface, as in T. voccinum IT. and T. im- 

 bricatum Ft. It is nearly always dry, and Bcarcely ever sharpl} 

 bulbous. The SPORES are white excepl in a small aberranl group 

 including '/'. personatum, T. nudum and '/'. panoeolum, where the} 

 are tinged pale dingy-flesh color in mass. They vary from elliptical 

 tu oval in- spherical, and are usually medium to Bmall or minute in 

 size. Tl pispore is rarely rough, e. g., in soi f the Bpecies un- 

 der the subgenus Melanoleuca. CY8TIDIA are lacking in this 

 genus; sterile cells are seldom presenl on the edge of the uilK: 

 they have been noted in '/'. rutilans and '/'. acre. The ODOR i» 

 quite characteristic of man} species; many have a farinaceous odor, 

 while some are distinguishable by a heav} disagreeable odor, when 



it is nut otherwise noticeable, the odor ma} often I btained b} 



crushing ;i piece of the «;t | » between the fingers The TASTE 

 varies ;il>i>. In those species with the farinaceous odor, then 



corresponding taste. 8 • species have an acrid 



Tricholomas usually have a terrestrial habitat. Thi 



