14 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [BuU. 



TRICHOLOMA Fr. 

 Plants violet-tinted ; stem bulbous ; flesh white T. personatum 

 Plants not violet-tinted I 



1. Cap viscid 2 



Cap not viscid 5 



2. Stem stout, 3 to 6 inches long, i inch thick. .T. portentosum 

 Stem slender, i to 4 inches long, ^ inch thick 3 



3. Cap brown or red-brown; gills becoming spotted with 



red as plants mature T. transmutans 



Cap with no shade of red ; gills never spotted with red 4 



4. Cap yellow with black streaks T. sejiinctum 



Cap yellow or green-yellow without streaks .... T. equestre 



5. Plants with a strong odor resembling soap; flesh 



red T. saponaceum 



Plants without strong odor 6 



6. Cap covered with dark red hairs; flesh yellow. . .T. rutilans 

 Cap not red 7 



7. Taste bitter ; plants pure white T. album 



Taste not bitter 8 



8. Plants gray-brown or mouse-colored T. terreum 



Plants white, tinted with yellow ; center of cap 



darker T. alho-flavidiim 



COLLYBIA Fr. 

 Stem terminating in a long, tapering, pointed root C. radicata 

 Stem not terminating in a single root i 



1. Stem densely hairy; plants growing on stumps C. velutipes 

 Stem not densely hairy 2 



2. Gills broad, distant. . . . ; 3 



Gills narrow 5 



3. Plants large and coarse ; cap 3 to 4 inches broad ; 



stem 3 to 4 inches long, ^ inch thick C. platyphylla 



Plants smaller ; 4 



4. Stem seldom over lyi inches long, ^ inch thick C. esculenta 

 Stem 2 to 4 inches long C. lacerata 



5. Stems united at base 6 



Stems not united at base 7 



6. Stem downy over its entire surface, long C. conHuens 



Stem downy only at base, short C. acervata 



