2l8 
GEO. F. ATKINSON 
irregulariter rimoso, versus marginem leniter radiatim rimuloso, 
2-2.5 cm. lato; lamellis late sinuato-adnexis, ventricosis, isabellinis 
demum ferrugineo-f ulvis ; cystidiis cylindricis vel ventricosis, mem- 
branacrassa praeditis, 50-70 x io-i6/x;sporisovalibus vel subreniformi- 
bus, inequilateralibus, levibus, 8-10 x 5-6 /x; stipite 4-5 mm. crasso, 
deorsum albo, sursum violaceo, minute albido-velutino, non squamoso, 
basi bulbosa cuius volva membranea interdum se liberat; deorsum 
carne alba, sursum violacea. 
Ground, Cascadilla woods, Campus, Cornell University, Ithaca, 
N. Y., Oct. 3, 1907. E. J. Petry, collector. Type specimens no. 
22 171, Herb. Cornell University. 
Related to In. ohscura and In. cincinnata. 
Inocybe virgata n. sp. 
Solitaria vel gregaria, 5-8 cm. alta; pileo campanulato dein ex- 
panso et umbonato, levi, 1.5-2.5 cm. lato, radiatim fibroso et leniter 
rimoso, atro-brunneo, versus marginem pallidiore et virgato; lamellis 
stipite adnatis, sinuato-uncinatis, subdistantibus, albis, demum fulvo- 
olivaceis, acie albida; cystidiis ventricosis vel clavato-ventricosis, pedi- 
cellatis, membrana moderatim crassa praeditis, 40-65 x 15-20/i; sporis 
ovalibus vel ovato-subellipsoideis, vel fabiformibus, levibus, 7-10 x 
5-6 ju; stipite concolore, sursum pallidiore, basi albo-myceleoideo, 3-4 
mm. crasso, apice albo-pruinoso, carne brunneo tincta. 
On bare wet ground or leaf mold in swamps. No. 25079 (type 
specimens, Herb. Cornell University) on bare ground in a spruce moor 
by Millers Run, beyond Hoop Pole Ridge, near Oakland, Md., Sept. 
27, 1917. G. F. Atkinson, collector. No. 25063 on leaf mold in low 
swampy ground along stream near Boiling Spring, a few miles from 
Deer Park, Md., Sept. 21, 1917. G. F. A. 
A number of the above described species have, for several years, re- 
ceived provisional MS. names as a matter of temporary convenience. 
Several of these have been changed to more suitable names. Unfor- 
tunately two of these provisional names were published through inad- 
vertence.^ Since the descriptions could not well be drawn from the 
dried Michigan plants, it seems desirable not to employ those nomina 
nuda, and more appropriate names are here used in their stead. In. 
entomospora becomes In. leptophylla and In. scahroides becomes In. 
leptocystis, unless the Michigan plants should prove to be specifically 
distinct from these two described here. 
Cornell University, Ithaca, N. Y. 
1 See Kauffman, C. H. Unreported Michigan Fungi, p. 34. Michigan Acad. 
Sci. 8: 26-37. 
