Par? 5, 1916] AGARICACEAEK 327 
margin slightly striate: lamellae broad, distant, adnate or subdecurrent, thin, white: spores 
hyaline, ellipsoid, 3-4 X 2 »: stipe tough, fibrillose-radicate, very viscid, cinereous, fistulose, 
white-strigose at the base, 2.5-6 cm. Jong, 2-5 mm. thick. 
TyPE LOcALIry: Europe. 
Hasitat: On pine needles in forests. 
DISTRIBUTION: New York; also in Europe. 
ILLUSTRATION: Pers. Ic. Deser. Fung. pl. 19, f. 3. 
Exsiccati: Thiim. Myc. Univ. 1101. 
26. Prunulus constans (Peck) Murrill. 
Agaricus (Mycena) constans Peck, Ann. Rep. N. Y. State Mus. 27:93. 1875. 
Mycena constans Sacc. Syll. Fung. 5: 296. 1887. 
Pileus submembranous, campanulate or couvex, 2-6 mm. broad; surface pale-cinereous, 
margin striate: odor alkaline; lamellae uncinate, crowded, ascending, white: stipe thin, equal, 
glabrous, dry, concolorous, filamentous at the base, 5 cm. long. 
Tyre Locality: Forestburgh, New York. 
Hasitat: Among moss in woods. 
DistRIBUTION: New York. 
27. Prunulus albogriseus (Peck) Murrill. 
Mycena albogrisea Peck, Bull. N. Y. State Mus. 116: 27. 1907. 
Pileus thin, submembranous, ovoid or subcampanulate, obtuse, 6-8 mm. broad, rarely 
reaching 10 mim.; surface glabrous, sulcate-striate, grayish-white, assuming a slightly darker 
or smoky tint on drying: lamellae rather thick, broad, distant, adnate, concolorous: spores 
7-8 X 4-5: stipe slender, glabrous, hollow, paler than the pileus, with a whitish, strigose 
villosity at the base, 2.5-5 cm. long, about 1 mm. thick. 
TYPE LocaALity: Bolton, Warren County, New York. 
Hastirat: Attached to fallen leaves of coniferous trees. 
DIstRIBsUTION: Known only from the type locality. 
28. Prunulus miratus (Peck) Murrill. 
Agaricus (Mycena) miratus Peck, Bull. Buffalo Soc. Nat. Sci. 1: 48. 1873. 
Mycena mirata Sacc. Syll. Fung. 5: 290. 1887. 
Pileus thin, campanulate, umbilicate, 8-10 mm. broad; surface glabrous, smooth, cinere- 
ous, margin striate: lamellae crowded, narrow, slightly uncinate, whitish: stipe smooth, whitish, 
long, filiform, radicate, villose at the base, 5 cm. long. 
TyPE LocaLity: Center, New York. 
Hasitat: Among fallen leaves in copses. . 
DIstRIBUTION: Known only from the type locality. 
29. Prunulus latifolius (Peck) Murrill. 
Agaricus latifolius Peck, Ann. Rep. N. Y. State Cab. 23: 81. 1872. 
Mycena latifolia Sace. Syll. Fung. 5: 268. 1887. 
Pileus convex, rarely subumbonate, gregarious, 8-12 mm. broad; surface grayish-brown, 
margin striatulate: lamellae broad, uncinate, white, with a decurrent tooth: spores 6 X 5 mu: 
stipe smooth, glabrous, subconcolorous, hollow, white-villous at the base, 2.5-4 cm. long, 
10 mm. thick. 
TyPE LocaLity: Center, New York. 
Hapirar: Under pine trees. 
DistRiBuTION: New Hampshire and New York. 
InLusTRATIONS: Ann. Rep. N. Y. State Cab. 23: pl. 6, f. 8-14. 
30. Prunulus caesius (Peck) Murrill. 
Mycena caesia Peck, Bull. Torrey Club 22: 486. 1895. 
. Pileus submembranous, campanulate, 8-12 mm. broad; surface glabrous, grayish-brown, 
blackish at the center, margin striate: lameflae subventricose, thin, grayish or bluish-gray when 
dry: spores subellipsoid, slightly apiculate at one end, 7.5~-10 X 4-5 yu: stipe slender, glabrous, 
grayish-brown, hollow, 2.5-5 em. long, 1-2 mm. thick. 
TYPE Locality: Newfoundland. 
Hasirat: Among sphagnum, . 
Distrreution: Known only from the type locality. 
