52 Twenty- SIXTH Report on the State Museum, 



rent lines on the stem ; stem nearly equal, solid, white ; spores 

 globose, .00018 in. in diameter. 



Plant 3-4' high, pileus 2 '-4' broad, stem Z'-h" thick. 



Ground in woods. Worcester. July. 



The ornamentation of the margin of the pileus is a convenient 

 mark of specific distinction. 



Agakictjs (Teicholoma) Limonitjm Pech. 



Pileus thin, broadly convex or expanded, smooth, yellowish ; 

 lamellae crowded, narrow, not forming decurrent lines on the stem, 

 lemon yellow; stem tapering downwards, smooth, striate, radi- 

 cating. 



Plant 3'-4' high, pileus 2-3' broad, stem 3" -4" thick. 



Ground in woods. Worcester and CrogLan. July and Sep- 

 tember. 



The lemon yellow color, especially distinct in the lamellae, and 

 the tapering root-like prolongation of the stem characterize this 

 species. 



Agaeicus leucocephalus Krorribh. 



Ground in woods. Croghan. September. 

 This plant is sometimes csespitose. Its stem is narrowed at the 

 base into a tapering root-like prolongation. 



Agakicus (Tricholoma) fumidellus Peck. 



Pileus convex, then expanded, subumbonate, smooth, moist, 

 dingy white or clay-color clouded with brown ; lamellae close, sub- 

 ventricose, whitish ; stem equal, smooth, solid, whitish ; spores 

 .00018 X .00015 in. 



Plant 2'-3' high, pileus l'-2' broad, stem 2''-3" thick. 



Ground in woods. New Scotland. October. 

 The disk is generally darker than the margin. The pileus 

 becomes paler in drying. The stem splits easily. 



Agaeicus (Tricholoma) thujinus Peck. 



Pileus convex or centrally depressed, smooth, hygrophanous, 

 pale alutaceous, the margin generally irregular, wavy or lobed ; 

 lamellae crowded, thin, abruptly emarginate, alutaceous ; stem 

 slightly thickened at the top, smooth, hollow, concolorous, whitish- 

 villous at the base. 



Plant 2' high, pileus 2' broad, stem 2'- 3' thick. 



Swampy ground, under arbor-vitse, Thuja occidentalis. Mem- 

 phis. August. 



