236 



Mvcological Bulletin A^os. 59 ciiid t'.o 



[Vol. IV 



thick. P]LEUS convex then expanded, plain or broadly nnibonate, fleshy, 

 very thin except at the center, chrome \ellow to orange yellow, darker 

 when yoimg and on the center, smooth, that is not striate, viscid, flesh 

 white, covered with numerous small flocculent patches or heaps of frag- 

 ments of the yellow powdery volva, which is easily removed and in wet 

 weather sometimes is entirely absent from the pileus. Gills broad in the 

 larger specimens, narrow in the smaller ones, 4-8 mm. broad, rounded at 

 each end, free, not very crowded, white, very finely serrate or fimbriate 

 from threads which attached the gills to the stem in the young plants. 

 Spores oval-ovate, white, 6-9x4-6^. Stems stufted, straight or flexuous, 

 slightly tapering from the bulbous base, and at the apex broadening slight- 

 ly, covered with flocculent scales, tinged with sulphur, fine sulphur powder 

 above the annulus, portions below the annulus covered with powdery 

 masses or particles of the universal veil. Bulb not very prominent, smooth 

 or rarely somewhat cracked, powdered with remnants of the volva. An- 

 nulus sulphur yellow or chrome yellow, membranous. The volva or uni- 

 versal veil consists of a yellowish powdery substance which separates into 

 numerous powdery masses, covering the pileus and base of the stem, but 

 which easily falls away. 



Fig. 18.'). I'fzi 

 Arthur I. 



ZA KF.-l'AN 



Sniilli. 



I'lu.to fr 



LMIIHIIS C 



:llii-H(l III tcihinil)iis, Cliir 



