Leucosporae 



II. GENUl'NA. Cuticle of pileus torn into downy or fibrillose scales. 



* Gills not changing color nor becoming spotted. 



T. decoro'sum Pk. decorus, decorous. Pileus firm, at first hemi- 

 spherical, then convex or nearly plane, (Plate XX.) 

 adorned with numerous brownish sub- 

 squarrose tomentose scales, dull ochra- 

 ceous or tawny. Flesh white. Gills 

 close, rounded and slightly emarginate 

 behind, the edge slightly scalloped. 

 Stem solid, equal or slightly tapering 

 upward, white and smooth at the top, 

 elsewhere tomentose-scaly and colored 

 like the pileus. Spores broadly el- 

 liptical, 5x4^. 



PileilS 1-2 in. broad. Stem 2-4 

 in. long, 2-4 lines thick. 



Decaying trunks of trees. Catskill 

 mountains and Alleghany county. 

 September and October. 



A rare but beautiful species. It is 

 often cespitose. It departs from the 

 character of the genus in growing on 

 decaying wood. Peck, 44th Rep. 

 N. Y. State Bot. 



Trichoioma decorosum is not rare in Pennsylvania. I have found it 

 at Angora, Philadelphia and in Chester county, Pa., growing in clus- 

 ters and singly. At first sight one might take it for one of the many 

 forms of Armillaria, but even cursory examination shows the difference. 



It is of good consistency and flavor, having a decided mushroom taste. 



T. flaves'cens Pk. pale yellow. Pileus convex, firm, often irregu- 

 lar, dry, slightly silky becoming bare, sometimes cracking into minute 

 scales on the disk, whitish or pale yellow. Flesh whitish or yellowish. 

 Gills close, white or pale-yellow, emarginate, floccose on the edge. 

 Stems firm, solid, often unequal, central or sometimes eccentric, single or 

 cespitose, colored like the pilous. Spores subglobose, 5/* in diameter. 



67 



TRICHOT.OMA DECOROSUM. 

 Two-thirds natural size. 



