32 Thirty-first Report on the State Museum. 



Agaricus (Tricholoma) fumescens Pk. 



Pileus convex or expanded, dry, clothed with a very minute appressed 

 tomentum, whitish ; lamellae narrow, crowded, rounded behind, whitish or 

 pale cream color, changing to a smoky blue or blackish color when bruised ; 

 stem short cylindrical, whitish; spores oblong-elliptical, .0002 -.00025' long. 



Plant 1-2 high, pileus 1 broad, stem 2 -3 ' thick. 



Ground in woods. Copake. Oct. 



The species is remarkable for the smoky or blackish hue assumed by the 

 lamellae when bruised, and also in drying. 



Agaricus (Clitocybe) pinophilus Pk. 



Pileus thin, convex, umbilicate or centrally depressed, glabrous, moist, pale 

 tan-color, paler or alutaceous when dry ; lamellae moderately close, subar- 

 cuate, adnate or slightly decurrent, whitish ; stem equal, stuffed or hollow ; 

 glabrous or subpruinose, colored like the pileus ; spores nearly elliptical, 

 .0002 -.00025 long; odor and taste resembling that of fresh meal. 



Plant 1-2 high, pileus about 1' broad, stem l"-2" thick. 



Ground under pine trees. Albany and Ticonderoga. July and August. 



Agaricus rubromarginatus Ft. 



Ground under spruce trees. Adirondack Mountains. August. 

 Our specimens when fresh had a slight alkaline odor ; otherwise they agree 

 well with the description of the species. 



Agaricus (Mycena) radicatellus Pk. 



Pileus thin, campanulate, glabrous, obtuse or subumbonate, whitish, when 

 dry striate on the margin ; lamellae ascending, narrow, close, white ; stem 

 firm, glabrous, slender, whitish, deeply rooting; spores subglobose, rough, 

 .0003'-.00035 long. 



Plant 1.5-2 high, pileus 4 -6 ' broad. 



Mossy ground in woods. Griffins. Delaware County. Sept. 

 This species is easily known by the long radicular portion of the stem, 

 which penetrates the earth after the manner of A % radicatus. 



Agaricus chrysophyllus Ft. 



Decaying wood. Adirondack Mountains, Summit and Sandlake. Aug. 

 and ISept. 



Agaricus (Pleurotus) abscondens Pk. 



Pure white ; pileus compact, convex or slightly depressed on the disk, 

 glabrous, dry ; lamellae thin, crowded, emarginate, with a decurrent tooth ; 

 stem eccentric, curved, stuffed, slightly mealy at the top ; spores minute, 

 elliptical, .0002 long, usually with a shining nucleus ; odor distinct, farina- 

 ceous. 



Stem about 2' long, pileus 2-3' broad. 



In hollow stumps. Griffins. Sept. 



Agaricus septicus Ft. 



Decaying wood. Adirondack Mountains. Aug. 



