Part 3, 1917] AGARICACEAE 177 
24. Naucoria striata Clements & Shear; Clements, Bot. Surv. Neb. 
5: 10. 1901. 
Pileus carnose, convex, at length explanate or repand, gregarious, 3-6 cm. broad; surface 
glabrous, glutinous, ochroleucous, paler toward the margin; lamellae free, somewhat crowded, 
ventricose, at first pale-umber, becoming ferruginous; spores ovoid, smooth, ferruginous, 
7-8 X 5 yu; stipe broad, equal or subincrassate at the base, sometimes compressed, solid or 
medullate with age, fibrous, beautifully lineate from the apex to the middle, silky-fibrillose or 
pala shining at the apex, pale-cremeous, fuscescent at the base, 4-7 cm. long, 13-15 mm. 
thick. 
TYPE LocaLity: Lincoln, Nebraska. 
Hasrrat: On rich ground. 
DisTRIBUTION: Known only from the type locality. 
25. Naucoria paludosella Atk. Jour. Myc. 12: 193. 1906. 
Pileus convex to expanded, somewhat depressed when old, 2.5—3 cm. broad; surface viscid 
when moist, clay-colored, darker at the center, often covered with darker, appressed, clay- 
brown scales; lamellae emarginate, adnate, sometimes with a decurrent tooth, easily becoming 
free, raw-umber to Mars-brown; spores subovoid to subellipsoid, smooth, fuscous-ferruginous, 
dull-ochraceous under a microscope, 9 X 4-5 y; stipe cartilaginous, floccose, concolorous, but 
paler, at length hollow, bulbous and covered with a whitish mycelium at the base, 6-8 cm. 
long, 3-4 mm. thick; veil rather thick, floccose, disappearing, leaving remnants on the stipe 
and margin of the pileus when fresh. 
Type LocaLiry: Buckeye Lake, Ohio. 
Hasrrat: On living sphagnum and other mosses and on rotten wood. 
DISTRIBUTION: Known only from the type locality. 
ILLUSTRATIONS: Hard, Mushr. f. 229; Jour. Myc. 12: pl. 91, 
26. Naucoria argillosa (Berk. & Curt.) Sacc. Syll. Fung. 5: 838. 
1887. 
Agaricus argillosus Berk. & Curt. Ann. Mag. Nat. Hist. II. 12: 421, 1853. 
Pileus at first convex, firm, subcoriaceous when dry, 5—-7.5 cm. broad, with the habit of 
Gymnopus carnosus; surface smooth, pale-brownish-yellow, margin inflexed ; lamellae adnexed, 
much crowded, narrow, white to argillaceous; spores copious, pale-argillaceous, ellipsoid, 
subcymbiform, rather minute; stipe cartilaginous, radicate, attenuate below, white, hollow, 
10 cm. long, 7 mm. thick. 
Tyer LocaLity: South Carolina. 
Hasirat: On the ground in woods. ; 
DisrriBuTION: North Carolina and South Carolina. 
27. Naucoria sororia Peck, Bull. Torrey Club 34: 101. 1907. 
Pileus fleshy, fragile, convex, broadly umbonate, solitary or gregarious, 5-10 cm. broad; 
surface glabrous, lacunose, subviscid, tawny, often with a slightly darker zone near the margin 
when moist, margin even, wavy or slightly lobed; context firm, watery, white, the taste and 
odor farinaceous; lamellae narrow, crowded, adnate, whitish, becoming darker with age and 
on drying; spores ellipsoid, 10-12 X 6-8 u; stipe equal or slightly bulbous, flexuous, fragile, 
stuffed, pale-tawny, white within, striate at the apex, 4-12 cm. long, 4-8 mm. thick. 
Types Locality: Falmouth, Massachusetts. 
Hasrrar: In open grassy places or on comysost heaps. 
DISTRIBUTION: Massachusetts and New York. 
28. Naucoria velutina Murrill, sp. nov. 
Pileus thin, submembranous, expanded, subumbonate, gregarious, 5-10 mm. broad; surface 
velvety-tomentose, pale-brownish, margin not striate; lamellae adnexed, subdistant, very 
broad, irregular, rosy-isabelline to pale-brownish, whitish and somewhat dentate on the edges, 
