116 
Journal of Mycology 
[Vol. 8 
Lepiota purpureoconia Atkinson n. sp.—Plants scattered, 
4-5 cm. high, pileus 1-2 cm. broad, stems 3-4 mm. in thickness. 
Pileus convex, flesh very thin, whitish but covered with a helio¬ 
trope purple powdery substance which forms a universal veil 
when young. Gills broad, stout, rounded, close but free, rather 
distant. Spores elliptical, smooth, white, 8-10x3-4//.. Stem 
even, solid, fleshy, whitish and covered with the powdery sub¬ 
stance up to annulus. Annulus evanescent, remnants of univer¬ 
sal veil. Stem heliotrope purple. Flesh and gills white, yellow¬ 
ish tinged. Ground, woods, Ithaca Flats, N. Y., Sept. 27, 1900. 
C. O. Smith, C. U. herb., No. 5404. 
Leptonia seticeps Atkinson n. sp.—Plants scattered, 1-2 cm. 
high, pileus 1-3 cm. broad, stems 2-3 mm. in thickness. Pileus 
convex to expanded, margin somewhat incurved at first, walnut 
brown, darker on the center, faintly and finely striate. Under 
the hand lens minutely granulose, darker points, otherwise 
smooth, flesh whitish, very thin. Gills slightly adnexed, about 
4 mm. broad, elliptical, edge eroded, pale flesh color. Basidia 
cylindrical, 18-25 x 6-8 a , 4-spored. Paraphyses oblong with 
rounded ends somewhat shorter and broader than the basidia. 
Do they elongate and form basidia? Cystidia none or very rare 
on the surface of the gills; on the edge numerous, clavate to ellip¬ 
tical, hyaline, 50-60 x 10-15 Spores oval to subglobose, smooth, 
flesh color on white paper, very pale under the microscope. 
Trama of gills of long cylindrical cells conveging as they de¬ 
scend in the gill and often lying more or less criss cross at differ¬ 
ent angles of divergence, cells 200-300x10-15//.. Trama of 
pileus of two layers; middle and lower portion floccose but many 
cells long, slightly clavate and lying at various angles to the 
surface of the pileus and each other and criss cross; surface layer 
of two different kinds of cells, 1st oval to clavate usually long 
pedicelled cells 30-50x25-40 a with smoky content forming a 
rather compact layer two cells in thickness; 2d, cells lanceolate to 
fusoid, 90-120 x 10-15 > straight or somewhat curved with smoky 
content, arising from small cells just beneath the larger ones, and 
projecting above the surface. Stem smooth, whitish below, 
above same color as pileus but paler, fibrous striate, even or very 
slightly enlarged below, straight or curved, fleshy, continuous with 
the pileus, solid. Taste not marked. On rotten logs or very 
rotten wood on the ground. McGowan’s woods, July 2, 1902, 
Ithaca, N. Y., C. U. herb., No. 9664, and other places. 
Pleurotus stratosus Atkinson n. sp — Plants gregarious 
and sometimes imbricate. Pileus sessile or with a very short lat¬ 
eral stem, 2-5 cm. broad, 2-3 cm. long, obovate to broadly cuneate, 
margin plane or crenate wavy in the larger and older specimens, 
sordid white or pale tawny, minutely tomentose, or some with 
the hairs long and gathered into reticulate tufts, convex or de- 
