species of North American Fungi. 291 



flavo-fusco subtiliter squamulato-verrucoso; stipite fistuloso fibril- 

 loso fusco, basi flavo-tomentoso ; lamellis latis secedentibus dis- 

 tantibus. Curt. no. 5051. On the mud of an exsiccated swamp, 

 New England, C. J. Sprague. 



Pileus |-f inch across, hemispherical, yellow-brown, minutely 

 and thickly squamulato-verrucose ; flesh thin, brittle; stem 

 1 inch high, not 1 line thick, fistulose, brown, fibrillose at the 

 base, abruptly swollen, and covered with a dull pale-yellowish 

 down ; gills plane, distant, attached, but soon free, and with 

 their edge denticulate ; spores subelliptic, ? ^ inch long. 



This is undoubtedly close to A. siparius, which sometimes 

 grows in the same kind of locality ; but in that species the spores 

 are ^too mcn ^ on o> no ^ ^° men tion other points. 



79. A. (Naucoria) pennsylvanicus, B. & C. Pileo* e conico 

 umbilicato subcarnoso squamuloso ; stipite fibrilloso-furfuraceo ; 

 lamellis latiusculis denticulatis adnexis subdistantibus. Curt, 

 nos. 395-1, • 956. Amongst fragments of wood, Pennsylvania, 

 Dr. Michener. 



Pileus about 1 inch broad, at first conical, obtuse, then ex- 

 panded and umbilicate, tawny, clothed with minute, erect, some- 

 times wart-like scales ; stem 1 inch high, 1 line thick, hollow, 

 clothed with furfuraceous fibrils ; gills rather broad, distant, 

 brown, edged with white denticulations ; spores subelliptic, 



27V0-W00- inch lon S- 



The spores are much smaller than in A. conspersus, with which 



it agrees in many respects. 



80. A. (Crepidotus) malachites, B. & C. Sparsus ; pileo cunei- 

 formi subrlabellato albo niolli ; stipite brevissimo, albo tomen- 

 toso ; lamellis ventricosis confertis ex albo flavidis. Curt. no. 

 5730. On the sides of old stumps in wet woods, New England, 

 Aug., C. J. Sprague. 



Gregarious, but scattered, horizontal ; pileus 1-2 inches across, 

 smooth, white, cuneiform, subflabellate ; flesh rather thick be- 

 hind, very thin in front ; stem 1-2 lines long, white, tomentose ; 

 gills at first white, then yellow-brown, ventricose, obtuse be- 

 hind, thin, crowded. Spores nearly globose, ^jq^ inch in dia- 

 meter. 



This species resembles A. nephrodes in the kid-like pileus, 

 but the gills and spores are very different. 



81. A. (Crepidotus) pecten, B. & C. Pusillus ; pileo pectini- 

 formi crenato-sulcato tomentoso e resupinato reflexo; lamellis 

 latiusculis umbrinis. Curt. no. 4991. On dead branches, 

 Upper Carolina, M. A. Curtis. 



Pileus 2 lines across, ochraceous, flabellate, strongly sulcate 

 and crenate, tomentose, attached by a little white down ; stem 

 none; gills moderately broad, umber; margin fringed with 



19* 



