Hymenomycetas, Agaricaceae, OchiosportB, Bolbitius. 277 



lidiore, profimde striato, demiim fisso; contextu teuui, flavo-nitente, 

 sapore grato; lamellis aduexis, angnstis, confertis, pallide citrinis, 

 in speciminibus siccis decoloratis, acie minute serrulatis ; sporis 

 ellipsoideis, levibus, sub microscopio ferrugineis, haud copiosis, uni- 

 guttulatis, 12-13*8-9; stipite aequali, cavo, levi, pruiuoso-furfu- 

 raceo, citrino, albo-nitente, 4-7 cm, lougo, 2-4 mm. crasso. 



Hah. sparsus ad margiues viarum, iu horto botanico ifew York, 

 Amer. bor. 



5. Piuleolus cremeus Murrill, Xorth Amer. Flora, X, p. 188 (1917), — 1040 

 Pileo e couico subexpauso, truncato, 1-2,5 cm. lato, levi, glabro, 

 aequaliter cremeo, margine integro, coucolore, baud striato, sapore 

 farinaceo sed odore peculiari nullo ; lamellis liberis, densis, latiu- 

 sculis, ventricosis, maturitate fulvis, acie albida minute serrulata; 

 sporis ovoideis, levibus sub microscoi)io melleis, 8-9 «^ 5-6 ; stipite 

 cylindrico, aequali, cartilagineo, cavo, levi, glabro, albidulo, 3-5 cm. 

 longo, 1,5-3 mm. crasso, 



Hab. solitarius inter ramula et folia dejecta sub arboribus, Ma- 

 dera Creek, Standford University, California, Amer. bor, 



6, Pluteolus parvulus Murrill, North Amer. Flora, X, p, 189 (1917). — lOdi 

 Pileo e convexo subplano, tenui, vix 1 cm. lato, levi, glabro, ni- 

 tente, tenuiter glutiuoso, fusco-avellaneo, umbone minuto concolore, 

 margiue striato ; lamellis liberis, ventricosis, latis, fulvis, acie al- 

 bida et minute serrulata ; sporis ellipsoideis, regularibus, levibus, 



sub microscopio melleo-nitentibus, 9-11 ^ 5 ; stipite apice incrassato 

 et pulveruleuto, basi glabro, levi, stramineo, cavo, flaccido et col- 

 labescente, 2 cm. lougo, 1 mm. crasso. 



Hal). solitarius ad terram humosam in silvis, Preston's Eavine 

 prope Palo Alto, Califoruia, Amer. bor. — Pl. calisto aftinis. 



BOLBITIUS Fr. — Syll. Y p. 1073, IX p. 153, XI p. 74, XIV p. 156, 

 XVI p. 127, XVII p. 74, XXI p. 179. 



1. Bolbitius flavus (Murrill) Sacc. et Trott., Mycena fiava Murrill, North 1042 

 Amer. Flora, X, p. 192 (1917), — Pileo fragillimo, e conico per- 

 fecte expanso, late umbonato, 4-7 cm. lato, glutinoso, plerumque 

 glabro, e flavo-citrino nitente pallide luteo-sordido, margiue integro 

 coucolore, contextu pallide citrino, odore et sapore peculiari nullo; 

 lamellis liberis, latis, ventricosis, coufertis, uuituritate pallide brun- 

 ueis vel fulvis ; sporis ellipsoideis, 14*8; stipite apice leniter an- 

 gustato, albo, cavo, sursum glabro, deorsum fibroso-tomentoso, 6-10 

 cm. longo, 8-12 mm. crasso. ' 



