44 - N " EW YORK STATE MUSEUM 



margin, rimuluse, chestnut color when young, becoming reddish 

 brown ; lamellae thin, close, sinuate, adnexed, whitish becoming 

 ferruginous, whitish on the edge ; stem brittle, flexuous, fibrillose, 

 solid or stuffed, white becoming reddish brown, a slight white 

 veil is sometimes seen in the very young plant; spores 8-10 x 6- 

 8 fx, cystidia rare. 40-50 x 15-20 p. 



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 

 I 11 o c y b e 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 e\~enescente ; sporae subglobosae, 

 irregulare nodolosae, uninucleatae, 8-10x6-8 fi, cystidia sparsa, 

 40-50 x 15-20 ix. 



Lophiostoma sieversiae 



Perithecia minute, about .2^ mm broad, erumpent, black; asci 

 oblong. 150-280x50-70 fi, usually S-spored ; spores oblong or 

 subfusiform, 3-septate, at first involved in mucus, 50-75x20- 



2 5 P-- 



Dead stems of Sieversia turbinata (Rydb.) Greene. 

 Big Cottonwood canyon. Utah. July. A. O. Garrett. 



Perithecia minuta. .25 mm lata, erumpentia. atra ; asci oblongi, 

 150-280x50-70 p., vulgo 8-sporis ; sporae oblongae vel subfusi- 

 formes, 3-septatae. primuni in muco involutae, 50-75 x 20-25 /*• 



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 6x4/1. 



Pileus 1.2-2 cm broad; stem 3-5 cm long. 2-3 mm thick. 



