HymenomycetfE, Agaricaceje, Rhodospor.-B, Leptonla. 211 



fiisco, sicco pallescente, margine extrio ; lainellis subventricosis, 

 temiibns, snbconfertis, latis, e griseo rnfescentibns, late adnatis ; 

 lainelhilis attenuatis ; sporis in cumnlo sorrtide roseis angnlato-ro- 

 tnndatis, basi attenuatis acntis, 9-11 * 7-9 [i. 



Hah. in cedretis Athintis algerici, Africa bor. — Affixu^ Entolomati 

 sericeo. 



14. Leptonia Davisiana Peck, in ^^. Y. State Mus. Bull. 157 (1911) 792 

 p. 49 et 112 (191U).— Pileo tenni, submembranaceo, convexo, deinde 

 plano vel late depresso, fragib, glabro, centro leviter squamnloso, 

 sicco saepe late striato, iiigrescenti-brnnneo, 1-2,5 cm. lato; lamellis 

 tennibns, confertis, subventricosis, adnexis, albis, dein incarnatis 



et pulvernlentis ; stipite gracili, aequali, glabro, farcto vel cavo, 

 pileo in colore simili, 1,5-8 cm. alto, 1-2 ram. crasso; sporis angu- 

 losis, nninucleatis, 10-12 * 8-10. 



Hab. ad terram in locis graminosis, Brookline, Mass., Amer. bor. 

 (S. Davis) — Affinis L. abnormi Peck sed facile distinguenda. 



15. Leptonia cinchonensis Murrill, Mycologia, 1912, p. 332, Xejj^o^iieZ^a 793 

 cinchonensis Mnrrill, Mycologia, v. III, 1911, p. 273. — Pileo tenui 

 irregulari convexo umbilicato, 2-2,5 cm. lato vix 1 cm. alto, sicco, 

 striato, avellaneo centro fnligineo, margine lobato, lamelbs adimtis 

 latiusculis subdistantibus pallide rubellis, poris angulosis unigut- 

 tatis 10-12 * 7-9 ; stipite cylindrico levi fumoso sursum leviter te- 

 nuato, 3 cm. longo, 2,2 mm. crasso.' 



Ilab. gregaria ad terram in umbrosis, 1800 m. circ. alt., Cinchona, 

 Jamaica, Amer. bor. 



16. Leptonia atro-squamosa Murrill, Mycologia, 1912, p. 332, Lepo- 794 

 niella atro-squamosa Murrill, Mycologia, 1911, p. 272. — Pileo late 

 convexo leviter depresso regulari 2 cm. lato avellaneo, striato, squa- 

 mnhs innatis imbricatis fuligineis denique squarrosis consperso, 

 nmbone depresso sqnamis nigris praedito; lamellis adnatis angustis 

 distantibus, concoloribus acie integra; sporis angulosis 8-1 Oix diam.; 

 stipite cylindrico aequali mnrino, 3,5 cm. longo, 2-3 mm. cr, 



Hab. solitaria ad hgna putrida, 1800 m. circ. alt., Morce's Gap 

 Jamaica, Amer. bor. — Habitus Lept. serrulatae. 



17. Leptonia Earlei Murrill, Mycologia, 1912, p. 332, Leptoniella Earlei 795 

 Murrill, Mycologia, 1911, p. 272, North Am. Fl. X, p. 94 (1917).— 

 Pileo convexo umbilicato tenui, 2 cm. hato, pallide castaneo, sub- 

 fnrfuraceo disco squamoso margine tenui non striato, lamellis ad- 

 nexis distantibus latis, sordide rnbentibus heteropliyllis ; sporis 

 angulosis irregularibus 10-13*7-8; stipite cylindrico glabro sur- 



