Hymeuomycetse, Agaricaceae, LeucosporHe, Russula. 141 



sciire violacea, juventute uudique nigra dein centro tantum sub- 

 atra, demum pallidiore, maroine nitide colorata, uda viscida, cute 

 separabili, prirauiu prainosa dein polita ; margine parce striato ; 

 contextu fragib', sub cute rubrescenti caeterum albo, lente acri ; 

 bimellis albis, arescendo flavidis, sporis albis pulverascentibus, 

 aequalibiis, simplicibus, venoso connexis, leniter adnatis, confertis; 

 stipite albo, sordide-violaceo maculato v. trito aut tacto pallide- 

 rubro, intus spugnoso, 2,5-4 cm. longo usque 1 cm. crasso; sporis 

 albis, globosis, ecliinulatis, 7 [i diam. 



Hab. ad terram in silvis Couiferarum, Stratton Vermont, Amer. 

 bor. (G. S. Burlingham). 



36. Russula purpurea-nigra Petch, Ann. R. Bot. Gard. Peradenyia, 526 

 V. VI, P. III, 1917, p. 200. — Primum alba, deinde fasco-grisea, 

 postremo purpureo-nigra ; pileo ad 15 cm. diam., infandibnliformi, 

 glabro, cute viscida, separabili ; carne crassa, alba, secto nigre- 

 scente ; stipite ad 6 cm. alt., 2,5 cm. crass., minute prainoso, ae- 

 quali, solido ; lamellis confertis, angustis, extus attenuatis, adnatis 



vel adnato-decurrentibus ; sporis albis, globosis, nodulosis, 5-7 |x 

 diam. 



Hab. saepe anulatim inter gramina, Peradeuyia, Ceylon, Asia. 



37. Russula blanda Barlingh. North Am. FI. IX, 4., p. 213 (1915).— 527 

 Pileo late convexo, mox umbilicato dein expanso v. plano et centro 

 leniter depresso, 3-4 cm. lato; superflcie centro excepto pure alba, 

 centro praecipue aetate pallide roseo v. flavido tincto, cuticola se- 

 parabili, uda viscida, minute squamulosa v. granulosa praecipue 



in disco : margine aequali ; contextu pure albo, immntabili, sapore 

 miti, odore speciali nullo; lamellis albis, aequalibus, prope stipitem 

 subfurcatis, leniter decurrentibus, subcoufertis ; stipite albo, apice 

 pruinoso, spugnoso-firmo, supra prope lamellas plus v. minus expan- 

 so, 2-2,5 cm. longo 0,5-1 cm. crasso ; sporis albis, subglobosis, sub- 

 levibus, 8,2 ^ 6,5. 



Hab. ad terram sub arboribus, Second Lake Long Island New 

 York Amer. bor. (G. S. Bublingham). 



38. Russula congoana Patonill. Bull. Soc. mycol. Fr., 1914, p, 336,- 528 

 Pileo carnoso e convexo explanato glabro, rubro 2-3 cm. lato, am- 

 bitu levi ; lamellis confertis aequalibus, sinuato-adnatis, luteis ; 

 stipite farcto aequali, 2 cm, longo, 8 mm. circ, crasso, rubro; sporis 

 ochraceis ovoides aculeatis, 10*8; basidiis clavatis, 26*10; cy- 

 stidiis clavatis obtusis, raris, 33-36 * 12. 



Hab. ad terram, Kaga M' Bra, Congo, Africae (Baudon). 



