44 NEW YORK STATE MUSEUM 
margin, rimulose, chestnut coior whe young, becoming reddish 
brown; lamellae thin, close, sinuate, adnexed, whitish becoming 
ferruginous, whitish on the edge; stem brittle, flexuous, fibrillose, 
solid or stuifed, white becoming reddish brown, a slight white 
veil is sometimes seen in the very young plant; spores 8-10 x 6—- 
8 p, cystidia rare, 40-50 X 15-20 up. 
Pileus 1.5—2.5 cm broad; stem 2-4 cm long, 1-2 mm thick. 
Gregarious. Roadsides under grass and ferns. Stow, Mass. 
September. S. Davis. 
This species belongs to the section Rimosi. It is allied to 
Inocybe castanea Pk. from which it differs in its squam- 
ulose umbo, sinuately adnexed lamellae, its stem white when - 
young, the presence of an evanescent veil, its more distinctly 
nodulose spores and its broader, shorter cystidia. 
Pileus tenuis, conicus vel convexus, deinde subplanus late um- 
bonatus, fibrillosus, in umbone squamulosus, in margine striatu- 
latus, in juventate castaneus, demum fuscus; lamellae tenues, 
confertae, sinuatae, adnexae, albidae, deinde ferrugineae, acie 
albidae; stipes fragilis, flexuosus, fibrillosus, farctus vel solidus, 
albus demum fuscus, velo albo evenescente; sporae subglobosae, 
irregulare nodolosae, uninucleatae, 8-10 x 6-8 yp, cystidia sparsa, 
40-50 X 15-20 p. 
Lophiostoma sieversiae 
Perithecia minute, about .25 mm broad, erumpent, black; asci 
oblong, 150-280 x 50-70 p, usually 8-spored; spores oblong or 
subfusiform, 3-septate, at first involved in mucus, 50-75 x 20- 
25 pP. 
Dead stems of Sieversia turbinata (Rydb.) Greene 
Big Cottonwood canyon, Utah. July. A. O. Garrett. 
Perithecia minuta, .25 mm lata, erumpentia, atra; asci oblongi, 
150-280 x 50-70 p, vulgo &-sporis; sporae oblongae vel subfusi- 
formes, 3-septatae, primum in muco involutae, 50-75 x 20-25 um. 
Marasmius trullisatipes 
Pileus thin, campanulate or convex, acutely umbonate, gla- 
brous, isabelline or subrufescent; lamellae thin, subclose, broad 
anteriorly, adnate, whitish tinged with pink; stem tough, solid, 
white within, pruinose above, tomentose below, externally car- 
tilaginous; spores 6x 4 wp. 
Pileus 1.2-2 cm broad; stem 3-5 cm long, 2-3 mm thick. 
