Hymenomycette, Agaricaceae, Rhodospofse, Pluteus. 191 



Hab. acl terram iu silvis mixtis, Unaka Springs, Tennessee, Ame- 

 riea bor. 



38. Pluteus niveus Murrill, N. Am. Fl. X, p. 128 (1917).— Pileo te- 715 

 nui, expanso, 2 cm. lato, minute furfuraceo, albo, margine non 

 striato ; lauiellis liberis, subconfertis, latis, ventricosis, ex albo 

 pallicle rubellis ; sporis late ellipsoideis, 8^6; stipite cylindrico, 

 glabro, nitido, albo, solido, 5 cm. longo, 2 mm. cr. 



Hab. ad terram, West Park, New York, Amer. bor. (F. S. P^arle). 



39. Pluteus lepiotlformis Murrill, N. Am. Fl. X, p. 129 (1917).— So- 716 

 litarius; i)ileo minuto, convexo, non omnino expanso, non umbo- 

 nato, 1-2 cm. lato, (sicco Lepiotae species tenellas imitante), non 

 striato, pallide isabellino, pilis nigris, strigosis adpressis in disco 

 copiosioribus consperso, margine pallido, saepe aetate lacero ; la- 

 mellis Iibei'is, subconfertis, latiusculis, ex albo salmoneis, fragili- 

 bus, acie integris et concoloribus; sporis globosis, levibus, roseis, 



7 {.i cr.; stipite valde subtili, aequali, levi, glabro, albo, 3 cm. longo, 



1 mm. cr. 



Hah. ad terram uliginosam in silvis, City Park, New Orleans, 

 Louisiana, Amer. bor. 



40. Pluteus melleus Murrill, K Am. Fl. X, p. 129 (1917), — Solitarius ; 717 

 pileo parvulo, e convexo subexpanso, umbonato, regulari, 1-2 cm. 

 lato, glabro, rugoso, pallide melleo, umbone leviter obscuriore, mar- 

 gine ex integro undulato, concolori ; lamellis liberis, latis, ventri- 

 cosis, confertis, multimodis insertis, ex albo salmoneis, acie inte- 

 gris et concoloribus; sporis late ellipsoideis, levibus, roseis, 7 * 5-6; 

 stipite vere gracili, cylindrico, aequali, glabro, levi, pallide melleo, 



2 cm. longo, 1 mra. cr. 



Hah. ad ligna putrida in silvis mixtis, Unaka Tennessee, Adi- 

 rondack M." et Kew York, Amer. bor. 



41. Pluteus atro-avellaneus Murrill, N. Am. FI. X, p. 131 (1917). — 718 

 Pileo parvo, e convexo expanso, non umbonato, regulari, 1-2 cm. 

 lato ; superficie hygropbana, e minute pubescenti glabra, non ru- 

 gosa, juventute uniformiter fuliginea, demum senescendo avellanea, 

 margine integro, concolori, striato ; lamellis liberis, latis, ventri- 

 cosis, subconfertis, e albis salmoueis, acie integris albidisque; sporis 

 subglobosis, levibus, roseis, 7-8 [x ; stipite angusto, aequali, glabro, 

 levi, pallido, 3 cm. longo, 1-2 mm. cr. 



Hah. solitarius ad terram bumosam in silvis, Unaka Springs Ten- 

 nessee, Amer. bor. (W. A. Murrill). 



42. Pluteus rugosidiscus Murrill, IsT. Am. Fi. X, p. 129 (1917).— So- 719 



