Part 2, 1917] AGARICACEAE 141 
involute margin; context white or tinged with pink; lamellae free, subventricose, white to 
salmon-colored, whitish-floccose on the edges; spores ovoid or ellipsoid, smooth, rose-colored, 
6-7 X 4-5 uw; cystidia flask-shaped, 45-70 X 8-15 y; stipe fibrillose, white, solid, slightly bulbous, 
equal or attenuate upward, about 5 cm. long, 4-6 mm. thick; volva white, lobed, with short, 
free margin. 
Tyre LocaLiry: England. 
HapiraT: Parasitic on Clitocybe. 
DIstrRiBuTion: Canada and the northern United States; also in Europe. 
ILLUSTRATIONS: Berk. Outl. Brit. Fungol. pl. 7, f. 2; Cooke, Brit. Fungi pl. 295; Gill. Champ. 
Fr. pl. 252 (712); Mycologia 8: pl. 177, f. A, B 
Exsiccati: Barth. Fungi Columb. 3509. 
2. Volvariopsis pusilla (Pers.) Murrill. 
Amanita pusilla Pers. Obs. Myc. 2: 36. 1799, 
Volvaria parvula Quél, Champ. Jura Vosg. 81. 1872. 
Volvaria pusilla Schroet. Krypt-Fl. Schles. 3!: 621. 1889. 
Volvaria striatula Peck, Bull. Torrey Club 22: 487. 1895. 
Pileus campanulate to plane, umbonate, 1.5 cm. broad; surface viscid, soon becoming 
dry, fibrillose, white, margin striate; lamellae free, rather crowded, narrow, white to flesh- 
colored; spores broadly ellipsoid, smooth, 5-7 X 4-5 4; stipe equal, short, glabrous, white, 
1.5-2.5 em. long, 1-2 mm. thick; volva white, short, usually deeply cleft into four or more 
lobes. 
Type LocaLiry: Europe. 
Hasitat: In cultivated grounds, usually among weeds, rarely in woods. 
DISTRIBUTION: United States east of the Rocky Mountains; also in Europe. 
InLustRations: Boud. Ic. Myc. 1: pl. 86; Bull. Herb. Fr. fi. 330; Cooke, Brit. Fungi #1. 3006; 
Gill. Champ. Fr. pl. 256 (713); Hard, Mushr. f. 195; C. G. Lloyd, Myc. Notes f. 1; Pat. Tab. 
Fung. 1: f. 332; Pers. Obs. Myc. 2: gl. 4, f. 4 
Exsiccati: Rav. Fungi Car. 1: 3. 
3. Volvariopsis pubescentipes (Peck) Murrill. 
Agaricus pubescentipes Peck, Ann. Rep. N. Y. State Mus. 29: 39. 1878. 
Volvaria pubipes Sacc. Syll. Fung. 5: 658. 1887. 
Pileus convex, about 1.2-2.5 em. broad; surface dry, white, clothed with minute, hairy 
squamules or reflexed fibrils, margin fimbriate; lamellae crowded, free, white, becoming flesh- 
colored, sometimes minutely serrate or eroded on the edges; spores ellipsoid, usually uninu- 
cleate, 6-7 u; stipe slender, subequal, pubescent, about 2.5 em. long and 2 mm. thick; volva 
subappressed, white. 
Type LocaLiry: Sandlake, New York. 
Hapirat: On the ground in borders of deciduous woods. 
DistRIBUTION: Known only from the type locality. 
ILLUSTRATIONS: Ann. Rep. N. Y. State Mus. 29: pl. 1, f. 1-3. 
4, Volvariopsis perplexa (Peck) Murrill. 
Volvaria perplexa Peck, Bull. N. ¥. State Mus. 167: 49. 1913. 
Pileus thin, convex or nearly plane, umbonate, slightly depressed around the umbo, 
solitary, 1.2-2 cm. broad; surface dry, adorned with minute, erect, hairy squamules, white, 
margin even, fimbriate; lamellae crowded, free, about 2 mm. broad in the widest part, pale- 
pink; spores ellipsoid, 6-8 X 4-5 y; stipe long, slender, glabrous, shining, solid or stuffed, 
slightly pruinose at the apex, thickened at the base, white, brownish where bruised, 5-7 cm. 
long, 2-3 mm. thick; volva closely sheathing, elongate. 
Type LOCALITY: Minnesota. _ 
Hasirat: Among fallen leaves in woods. : 
DIstRIBUTION: Known only from the type locality. 
5. Volvariopsis umbonata (Peck) Murrill. 
Volvaria umbonata Peck, Bull. Torrey Club 26: 64. 1899. 
Pileus thin, campanulate, becoming convex or nearly plane, prominently umbonate, 2-3 
em. broad: surface slightly viscid when moist, silky when dry, white, margin distinctly striate; 
