First person to use this name on MO: Alan Rockefeller
Odd that it does not have cystidia.
Original species description:
39. Inocybe acystidiosa C. H. Kauffman, sp. nov.
Pileus subfleshy, obtusely subconic-convex, then plane and subumbonate, 3-6 cm. broad;
margin decurved; surface dry, fibrillose-scaly, sordid-brown, the scales darker; context white;
lamellae sinuate-adnexed, close, rather broad in front, whitish then pale-brown, the edges
white-fimbriate; stipe equal above a subbulbous base, subglabrous, fibrous-fleshy, brown,
paler at the apex, white-mycelioid at the base, 2-3 cm. long, 4-8 mm. thick; spores usually
angular-tuberculate, elongate-subrectangular, subtriangular, with distinct nodules, 8-10
(-11) X 4-6 ft; cystidia none; sterile cells clávate, on the edges of the lamellae.
Type collected on the ground under pines, Campus, Leland Stanford Jr. University, Palo Alto,
California, April 3, 1903, C. F. Baker 1872 (herb. N. Y. Bot. Gard.).