Masses — A Monograph of the genus Inocybe , Kars ten, 467 
Under spruce and balsam fir-trees. United States (North Elba, Essex Co.). 
Easily distinguished from all other species of this genus known to me, by the 
whitish umbonate apex of the pileus (Peck). 
(Peck’s type examined.) 
eurvipes, Karst., Hedw., 1890, p. 176 ; Sacc., Syll ix, p. 97. 
P. convex, then expanded, unequal, obtuse, adpressedly fibrillose or fibrillosely 
squamulose, becoming glabrous, brown or fuscous becoming paler, 2-2-5 cm. ; g. 
adnexed, seceding, crowded, whitish then brownish ; s. solid, curved, flexuous or 
twisted, narrowed downwards, fibrillose, pallid, about 3 cm. ; sp. irregularly elliptic- 
oblong (angulato-ellipsoideis), 9-15 x 5-7 jul ; c. fusoid-ventricose, 60-70 x 19-22 /a. 
On naked earth. Finland. 
decipiens, Bres., Fung. Trid., ii, p. 13, tab. cxviii ; Sacc., Syll. xi, p. 51. 
P. convex, then expanded and umbonate, floccosely-silky, disc even then 
breaking up into squamules, ochre-cinnamon, 3-5 cm. ; g. crowded, broad, ventri- 
cose, sinuate, adnexed, cinnamon ; s. glabrous, pallid, slightly striate, stuffed, base 
minutely marginato-bulbous, 4-5 cm. ; sp. irregularly oblong, slightly tuberculate, 
n-14 x 6-8 fA ; c. ventricose, 50-70 x 1 5-2 5 ju. 
Gregarious. Austria. 
Allied to /. lucifuga. 
cicatricata, Ellis and Everh., Journ. Myc., v, p. 25 (1889); Sacc., Syll. ix, 
p. 100. 
P. broadly and obtusely conical or conic-campanulate, expanding to convex, 
densely grey fibrilloso-rimose except the smooth disc, which is livid when moist, 
2-2-5 cm - i g. ascending, adnexed with a slight decurrent tooth, becoming sub- 
sinuate and brownish-cinnamon; s. short, stout, sub-bulbous, solid, nearly white, 
tomentose, then darker, 1-5-3 cm. ; sp. very irregularly and coarsely nodulose, 
usually more or less elongated, 10-12 x 7-8 /* ; c. broadly fusoid, not abundant, 
45 " 55 X 12-15 r- 
Gravelly sand near filbert-trees. United States (Newfield, N.Y.). 
Rather close to /. Renneyi, 
Ellis gives the spore measurement as 7-9 x 5-6 /a, but in the specimen quoted 
below I find them larger. 
(Ellis and Everh., N. Amer. Fung. Ser. ii, 1901, examined.) 
infida, Massee ; Ag. (Heb.) infidus , Peck, 27 Rep. State Mus., p. 95 (1874); Ag. 
umbratica , Qu6L, Assoc. Fr. 1883, tab. 6, f. 7 ; Sacc., Syll. v, p. 787 ; I. leucocephala , 
Bond., Soc. Bot. Fr. 1885, tab. 9, f. 1 ; Sacc., Syll. v, p. 765; I. commixta, Bres., 
Fung., Trid., i, p. 53, tab. 48, f. 2 ; Sacc., Syll. v, p. 787. 
Entirely white. P. conico-campanulate then expanded and umbonate, silky- 
fibrillose, or more or less squamulose, white, or slightly tinged with grey or yellow, 
margin often splitting, 1-5-3 cm.; g. free, crowded, greyish-cinnamon; s. solid, 
minutely pruinose, apex scurfy, white, 3-5 cm. ; sp. irregularly globose-oblong, 
nodulose, 9-10 x 6-7 /*; c. fusiform or subventricose, 40-50 x 12-15 Smell 
earthy, strong. 
On the ground in woods, &c. United States, France, Austria. 
Superficially indistinguishable from the white form of I. geophylla, from which 
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