162 FUNGUS-FLOE A. 



yellow ; gills adnate with a decurrent tooth, crowded, 

 becoming ventricose, pallid then ferruginous-brown, nearly 

 2 lines broad ; stem 11^ in. long, glabrous, rigid, whitish, 

 not rooting, stuffed then hollow; spores elliptical, 12-16 x 

 8-10 p. 



Agaricus (Naucoria) vervacti, Fries, Epicr., p. 197 ; Cke., 

 Hdbk., p. 178; Cke., Illustr., pi. 617A. 



In meadows, gardens, &c. 



Stem short, rather thick, sometimes attenuated upwards, 

 at others downwards. Pileus yellow. (Fries.) 



Naucoria pediades. Fr. 



Pileus 1-2 in. across, flesh thin, convex then plane, obtuse, 

 sometimes becoming slightly depressed, dry, at length 

 minutely rivulose but never striate, yellow-ochraceous then 

 pale tan-colour ; gills adnexed, about 2 lines broad, crowded 

 at first, then rather distant, at first brownish then dingy- 

 cinnamon; stem 23 in. long, 1-2 lines thick, somewhat 

 flexuous, silky, yellowish, base slightly bulbous, stuffed 

 with a distinct pith ; spores dingy ferruginous, elliptical, 

 10-12 x 4-5 /x; cystidia fairly numerous, 30-50 x 8-10 p.. 



Agaricus (Naucoria) pediades, Fries, Epicr., p. 197 ; Cke., 

 Hdbk., p. 178; Cke., Illustr., pi 492. 



In pastures. 



Stature variable, stem usually elongated ; spores about an 

 inch broad, ochraceous then tan-coloured. (Cooke.) 



Naucoria arvalis. Fr. 



Pileus up to 1 in. across, tough, flesh rather thick, convex 

 then expanded, orbicular obtuse, even, glabrous, slightly 

 viscid, yellowish-brown, paler when dry; gills adnexed, 

 rather distant, plane, 3 lines broad, brownish-white, then 

 ferruginous; stem about 1J in. long, 2 lines thick, even, 

 pulverulent, yellowish, continued downwards into a long, 

 rooting base ; spores elliptical, 9 x 5 //,. 



Agaricus (Naucoria) arvalis, Fries, Epicr., p. 197; Cke., 

 Hdbk., p. 179 ; Cke., Illustr., pi. 479 (variety). 



On the ground in fields, gardens, &c. 



There is no vestige of a veil present. Allied to N. semi- 

 orbicularis, but distinguished from this and every known 

 species by the long, rooting base of the stem. 



