54 NORTH AMERICAN FLORA [Volume 10 



43. Lepiota subnivosa Murrill, Mycologia 4: 231. 1912. 



Pileus thin, convex to plane, umbonate, solitary, 1.5-3 cm. broad; surface dry, smooth, 

 somewhat striate at times, slightly innate-fibrillose, with a few scattered floccose scales, snow- 

 white throughout or rose-tinted on the umbo; lamellae free, narrow, not crowded, white; 

 spores ellipsoid, smooth, hyaline, uniguttulate, 7-8X3.5 m ; stipe thicker below, slender, 

 glabrous, hollow, white, 5-9 cm. long, 2-4 mm. thick; annulus superior, white, fixed, rarely 

 ample and persistent, usually breaking up and vanishing, especially in small plants. 



Type locality: Seattle, Washington. 

 Habitat: On banks in deep woods. 

 Distribution: Washington. 



44. Lepiota mutata Peck, Bull. Torrey Club 23: 411. 1896. 



Pileus thin, convex, subumbonate, 2.5-4 cm. broad; surface slightly scabrous on the disk, 

 white, changing to brown on the disk in drying ; lamellae thin, free, white, crowded, subventri- 

 cose; spores ellipsoid, smooth, hyaline, 7.5-10X5-6 /*; stipe slender, equal, white, hollow, about 

 2.5 cm. long, 2-4 mm. thick; annulus slight, sometimes evanescent. 



Typb locality: Kansas. 

 Habitat: On the ground in woods. 

 Distribution: Kansas. 



45. Lepiota alluviina (Peck) Morgan, Jour. Myc. 12: 243. 1906. 



Agaricus alluviinus Peck, Ann. Rep. N. Y. State Mus. 35: 157. 1884. 



Pileus thin, convex or plane, sometimes reflexed on the margin, 1.2-2.5 cm. broad; surface 

 white, adorned with minute, pale-yellow, hairy or fibrillose scales, both surface and covering 

 becoming deeper yellow on drying; lamellae free, thin, crowded, white or yellowish; spores 

 ellipsoid, smooth, hyaline, 6-8X4-5 ju; stipe slender, slightly thickened at the base, whitish 

 or pallid, fibrillose, 2.5-5 cm. long, 2-3 mm. thick; annulus usually remote, sometimes below 

 the middle of the stipe, slight, subpersistent. 



Type locality: Albany, New York. 

 Habitat: Alluvial soil among weeds. 

 Distribution: Known only from the type locality. 



46. Lepiota subflavescens Murrill, sp. nov. 



Pileus thin, expanded or somewhat depressed, 2 cm. broad; surface bright-lemon-yellow, 

 not striate, appressed-squamulose, the cuticle entire on the disk, margin thin, entire, con- 

 colorous; context very thin, white; lamellae free, broad, crowded, white; spores ellipsoid, 

 appendiculate, smooth, hyaline, 6-7 X 3-4 y. ; stipe equal except at the bulbous base, solid, 

 pale-yellow, glabrescent, 3 cm. long, 2 mm. thick; annulus ample, persistent, median, yellow. 



Type collected on the ground in moist woods in City Park, New Orleans, Louisiana, September 

 6, 1908, F. S. Earle 76. 



Distribution: Known only from the type locality. 



47. Lepiota fulvastra (Berk. & Curt.) Sacc. Syll. Fung. 5: 51. 1887. 



Agaricus (Lepiota) fulvaster Berk. & Curt. Ann. Nat. Hist. II. 12: 419. 1853. 



Pileus plano-convex, gregarious, 6-13 mm. broad; surface white with fulvous scales, the 

 margin striate-sulcate and plicate, often splitting over the lamellae, which are distant, white, 

 thick, attached to a collar; spores ovoid or ellipsoid, smooth, hyaline, 5X3.5 p.; stipe slender, 

 glabrous above the annulus, fibrous-spongy within, 2.5 cm. long, 1 mm. thick; annulus fulvous. 



Type locality: North Carolina. 

 Habitat: Sandy grass plots. 

 Distribution: Southeastern United States. 

 Exsiccati: Rav. Fungi Am. 402, 



48. Lepiota mississippiensis Murrill, sp. nov. 



Pileus rather thin, campanulate to expanded, umbonate, scattered, 1-2 cm. broad; surface 

 dry, pale-yellow, densely covered with cinnamon-colored scales, not changing on drying, faintly 



