Leucosporae 



Cespitose, in troops or often in rings. Trichoioma. 



* Gills whitish. 



** Gills becoming reddish or smoky-gray. 



SPONGIOSA (spongia, a sponge). Page 78. 



Pileus compact, then spongy, obtuse, even, smooth, moist but not 

 hygrophanous ; firm, growing in troops late in the autumn. Stem 

 stout, base usually thickened, spongy fibrous. Gills at length decur- 

 rent but sinuate, by which character they are distinguished from Clito- 

 cybe.. 



* Gills not discolored. 

 ** Gills discolored. 



HYGROPHANA (Gr. , wet; to appear). Page 80. 



Pileus thin, somewhat umbonate; flesh at length soft, watery. Stem 

 rootless, containing a pith, entirely fibrous. 



Flesh not exceeding in depth the width of the not broad, thin gills; 

 thinnest toward the margin, hence somewhat umbonate. Color of the 

 pileus either moist or dry, very variable in the same species. Pileus 

 sometimes pulverulent from the persistence of the veil in dry weather. 



* Gills whitish, not spotted. 



** Gills more or less violet, gray or smoky. Not represented. 



Series A. 

 PILEUS VISCID OR FIBRILLOSE, DOWNY OR SCALY. 



I. LIMA'CINA. Viscous when moist. 

 * Gills not becoming discolored, nor becoming reddish. 



T. eques'tre Linn. eqttestre, belonging to a horseman or knight, 

 from distinguished appearance. Pileus fleshy, compact, convex becom- 

 ing expanded, obtuse, pale-yellowish, more or less reddish tinged, the 

 disk and. central scales often darker, the margin naked, often wavy. 

 Flesh white or tinged with yellow. Gills rounded behind, close, nearly 

 free, sulpJnir-yellow. Stem stout, solid, pale-yellow or white, white 

 within. Spores 6.5^8x4-5^. 



Pileus 3-5 in. broad. Stem 1-2 in. long, 6-10 lines thick. 



. 61 



