292 THE AGARICACEAE OP MICHIGAN 



296. P. spectabilis Fr. 

 (ee) Gills broad, 

 (f) Pileus and stem variegated yellow and green, or with 

 greenish scales; on exposed, hard wood. 301. P. 

 aeruginosa Pr. 

 (ft) Pileus without green shades, 

 (g) Stem hollow at length; pileus covered with ferrugin- 

 ous, pointed, fasciculate scales. 295. P. muricata Pr. 

 (gg) Stem solid; pileus pale red or yellowish; gills sub- 

 distant. 300. P. luteofolia Pk. 

 (bb) Gills not yellow at first, (becoming yellowish in P. curvipes). 

 (c) Very caespitose; pileus and stem squarrose-scaly; gills pallid- 

 olivaceous at first, narrow. P. squarrosa Fr. 

 (cc) Solitary or subcaespitose. 



(d) Stem bulbous, subradicate, solid; gills rounded-adnexed or 



adnate. (Dry condition.) 289. P. destruens Fr. 

 (dd) Stem equal, stuffed then hollow, 

 (e) Pileus small, 2-3 cm. broad. 



(f) Pileus covered with superficial, erect, small spine-like 



scales, tawny-brown. 294. P. erinaceella Pk. 

 (ff) Pileus with innate, flocculose minute scales. 293. P. 

 curvipes Fr. 

 (ee) Rather large, 6-12 cm. covered with appressed, tawny 

 fibrillose scales; gills narrow; annulus ample. 292. 

 P. fulvosquamosa Pk. 

 (aa) Pileus not scaly; growing on the ground, 

 (b) In moist, rich woods, 

 (c) Moderately large. 



(d) Large; pileus covered with white flocci, lacunose-wrinkled; 

 annulus large, persistent and movable. 284. Pholiota 

 caperata Fr. 

 (dd) Pileus glabrous; disk ochre-yellowish. 



(e) Gills adnexed or nearly free; stem solid; annulus thick. 



285. P. johnsoniana Pk. 

 (ee) Gills adnate, decurrent by a tooth; stem hollow; annulus 

 ample; caespitose. 286. P. aegerita Fr. 

 (cc) Small; pileus ochraceous; spores 7-8x3-4; annulus mem- 

 branous, distant; gills yellowish. P. togularis Fr. 

 (bb) On lawns, grassy places, etc., medium size. 



(c) Stem solid, hard. Pileus tan-color but variable; in cultivated 



fields and gardens. 284. P. dura Bolt, 

 (cc) Stem stuffed then hollow; pileus varying white, whitish 

 tinged with tan or yellowish, 

 (d) Open places, in fields, thickets, etc. Spores 9-10.5 x 5-5.5, 



obscurely 5-angled. 287. P. howeana Pk. 

 (dd) Annulus membranous, fragile, subfugacious, brown in 



mass. P. duroides Pk. 

 (ddd) Annulus membranous, fragile, subfugacious. 



(e) On lawns, etc., in the spring; spores 8-10x5-6 micr., 



pileus whitish. 284. P. praecox Fr. 

 (ee) Later in the season; spores 11-12.5 x 7-7.5 micr., similar 

 to the preceding. 284. P. vermiflua Pk. 



