ttymeiiomycetfe, Ag-aricacefe, Leucosporse, Russula. 95 



quandoque cavernoso, albido v. csbso fumoso-brunneo; sporis albis, 

 globosis 7,5 ;j>. cr. 



Hah. ad terram, Horicon alibique in America bor. — Russ. 

 sordidce affinis. Edulis. 



17. Russula aurantio-lutea Kauffman, XI Rep. Michig. Acad. (1909) 389 

 pag. 81. — Pileo tenui, fragili, convexo dein depresso, 5-10 cm. 

 lato, citrino-luteo v. aurantio tincto. margine tuberculoso-striato, 

 pellicula viscida, nitidula, subseparabili; carne alba, marginem ver- 

 sus tenui, immutabili; lamellis pallide flavis, subconfertis, osquali- 

 bus V. nonnuUis brevioribus, adnato-secedentibus, ssepe furcatis et 

 venoso-connexis; stipite albo, 4-8 cm. longo, 1,5-2 cm. cr., glabro, 

 levi, spongioso-farcto, intus concolore; sporis ochraceo-flavis, sub- 

 globosis, 8-9 [1. ; sapore acri; odore subnullo. 



Hab. soHtaria in silvis, Michigan bor. Amer. bor, — Russidce 

 ochroleucm subaffinis. 



18. Russula rosea (Sch;efifer?) Quelet, Fl. myc. de Fr. p. 349, Maire sdo 

 in Ball. Soc. mycol. France (1910) p. 71 et 100. -- Pileo cou- 

 vexo-plano, 5-8 cm. lato, dein depresso, subviscoso, roseo-incar- 

 nato, dein rubescente, centro cremeo v. albo, cuticula tenui, sepa- 

 rabih; carne tenera, alba, sapore avellanaceo; lamellis sinuatis, 

 furcatis, tenuibus, mollibus, albis; stipite spongioso, sursum ex- 

 panso, fusoideo, subinde excentrico, striato, pruinoso, albo, raro 

 basi roseo; sporis tenuiter aculeolatis, 8 [j.. diam., 1-nucIeatis, hya- 

 linis, albis (flavidis sec. Maire 1. c). 



Hah in silvis umbrosis sabulosis in Gallia. — Edulis, delicata. 

 Sec. Fries Agaricus roseus Schieffi est CUtocijhe opipara Fr. — 

 Syll. V, 148. 



19. Russula subfoetens W. G. Smith., Syn. Brit. Basidiomyc. (1908) 391 

 p. 288. — Pileo convexo-plano, subdepresso, leviter viscido, fla- 

 vo-ochraceo v. fulvo, margine striato-tuberculoso pallidiore, 8 cm. 

 lato; stipite sequali, levi, albido v. fulvescente, 1,7 cm. cr. ; sapore 

 acri amaro; odore ingrato. 



Hah. in graminosis BritannicC. — Totus fungus 5-6 cm. altus, 

 elasticus. 



20. Russuia subvelutina Peck, Bull. Torr. Bot. Club, XXXIII (1906) 392 

 p. 215, — Pileo firmo, convexo v. centro leniter depresso, sicco, 

 minute pubescenti v. velutino-tomentoso, margine .equali, obscure 

 rubro, ssepe centro parum obscuriore, cuticula adnata; carne alba, 

 crassa, sapore grato; lamellis moderate confertis, adnatis, s;epe 

 basi furcatis, albis, dein flavo-cremeis, interstitiis venosis; stipite 



