144 C. H. Kauffman 



cm. long, pallid with a slight yellowish-buff tint downwards, 

 glabrous, with scarcely any pruina, even, not horny, instititious 

 on half-decayed needles of Picea Engehnanni. Odor distinct, 

 penetrating, suballiaceous or somewhat disagreeable. Spores 

 ellipsoid-sublanceolate, acute at one end, hyaline, smooth, 8-10 

 X 3.5-4 ju. Basidia 4-spored, 30 x 5-6 ix. No cystidia seen. 



Tolland, Colorado. Sept. 8. Very abundant on spruce 

 needle beds after rains in the mountain forests. Stem scarcely 

 thicker than a hair. 



Marasmius pinastris sp. no v. 



Pileus slightly fleshy to submembranous, 1-3 cm. broad, at 

 first campanulate and margin incurved, then expanded-plane, 

 umbonate or papillate, umbo often irregular-uneven, margin at 

 length radiately rugulose-striate to subplicate, surface uneven 

 elsewhere, subtomentose, " snuff -brown " on center to "clay- 

 color" toward margin; flesh thin, equal, whitish. Gills subde- 

 current, arcuate, narrow, subdistant, intervenose, crisped, pallid, 

 edge entire. Stem 2.5-4 cm. long, 1-2.5 mm. thick, dilated and 

 pallid at the apex, solid, equal, sometimes striate-lined above, 

 white within, subglabrous above, covered downwards by a dis- 

 tinct roughish "chestnut-brown" tomentum, which is paler on 

 drying, strigose-attached at the base. Odor rather strong, sub- 

 alliaceous, penetrating. Taste slowly disagreeable or subastrin- 

 gent. Spores 8-9 (10) x 4-4.5 (5) ^l, narrowly ovate and pointed 

 at one end, hyaline, smooth. Cystidia absent. 



Among needles and debris under pine and spruce. Tolland, 

 Colorado. Sept. 8. 



Marasmius prasiosmus Fr. Rare. Leal. On decaj-ing 

 twigs of spruce. 



Mycena alkalina Fr. Infrequent. Leal. On mosses under 

 spruce and pine. 



Mycena debilis Fr. Frequent. Leal. On mosses under 

 conifers. 



Mycena galericulata Fr. Infrequent. Tolland. On de- 

 cayed wood. 



Mycena immaculata Pk. Rare. Tolland. On bed of 

 spruce needles. 



