CLASSIFICATION OP AQARU 



clavate, obtuse. <Hm>k strong and disagreeable ;it times, especially 

 when old. 



Solitary or gregarious. < >n manured ground, dung, rich leaf 

 mould in woods; often in ricli cultivated fields. So far round in the 

 Bouthern half of the State only. Slay, June and iul\. Infrequent. 



Atkinson Bays plants from Lansing, found in ;i potato patch, had 



ih lor of rotting potatoes. Sometimes the odor is doI evident, 



especially when thi plant is young. Solitary specimens occur in 

 low woods ;iihI are somewhal smaller, bul in all eases the large, 

 broad spores are characteristic and separate H from the aexl species. 

 It is considered poisonous in Europe, bu1 McClatchie, in California, 

 reports il perfectly Bafe. Bresadola warns against confusing ii 

 with Lepiota naucina and Palliota campestris. 



567. Volvaria gloiocephala Fr. (Poisono 



Syst. Mycol., 1821. 



[llustration : Patouillard, Tab. Analyt, No. 224. 

 Bresadola, Pung. mang. e. vel., PI. 45. 

 (Jilk'tt, Champignons <k' Prance, No. 711. 

 Ricken, Blatterpilze, PI. To. Pig. 2. 

 Cooke, III.. PI. 298. 



PILEUS 5-10 cm. broad, ovate a1 first then campanulate-expanded 

 to plane, obtuse, sometimes umbonate, glabrous, viscid to glutinous 

 when moist, smoky-gray to pearl-gray, with ;i metallic luster when 

 dry, margin striate. FLESH thin, fragile, white. GILLS free, 

 rather close, broad toward front, narrowed behind, subventric< 

 edge concolor. STEM 8-15 cm. or more long, L-2 cm. thick, tapering 

 upward, solid, even, glabrous above, somewhal villose toward base. 

 VOLVA thin, splitting apically or circularly, sometimes three lobed, 

 sometimes regular or lacerated on edge, adherent, externally tomen- 

 tose. SPORES 11-13x6-7.5 micr., elliptical, smooth, flesh color. 

 CYSTIDIA none. ODOE and TASTE disagreeable, quite strong. 



Solitary. < >-n decaying vegetation, old leaves, rotten wood, in low 

 woods. August. Ann Arbor. Rare. 



Excepl for the darker colors, smaller spores, striations on the 

 pileus and lack of cystidia, iliis seems close to the preceding, and 

 might perhaps be considered as ;i variety of it. The spores and 

 colors in these two species are very variable and no doubl inter 

 mediate forms occur. Striations are never verj satisfactory charac 

 ters to separate Bpecies, although thej are useful. The species is con- 



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