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 i-| 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, ^qVo ^^^^ long. 



This is undoubtedly close to A. siparius, which sometimes 

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

 are ^ xoo ^^^^ ^^^^) ^^^ ^^ mention other points. 



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

 umbilicato subcarnoso squamuloso ; stipite fibrilloso-furfuraceo ; 

 lamellis latiusculis denticulatis adnexis subdistantibus. Curt, 

 nos. 3954, -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, 

 ^tVo-Woo- inch long. 



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

 it agrees in many respects. 



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

 formi subflabellato albo molli ; 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 Hrst white, then yellow-brown, ventricose, obtuse be- 

 hind, thin, crowded. Spores nearly globose, ^jo(J ^^^^ ^^ ^i^" 

 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 



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