218 AGAKICINI. 



Sect. 1. Compactce. 



613. Russula nigricans. Fr. '' Blackish Eussula." 



Pileus equally fleshy, compact, umbilicate, depressed, dingy- 

 olive; margin inflexed, without strise ; stem solid, blunt, at length 

 charry-black ; gills rounded thick, distant, unequal. — Fr.Epicr. 

 p. 350. Bull. t. 579,/. 2. Kromhh. t. 70, / 14, 15. Sow. t. 36. 

 Huss. t.73. Ann. N.H. no. 799*. A. adustus, Eng, Fl. Y.p. 23. 



In woods. Common. 



Pileus 2^-3| in. broad, white, smooth, or clothed with a very minute pubes- 

 cence or mealj which when touched turns black, piano-depressed, at length 

 infundibuliform, flesh thick, firm, crisp, turning red when cut, when old the 

 whole plant is black. Margin not involute ; gills narrow, pale yellowish, 

 thick, distant, forked, decurrent ; stem 3 in. high, nearly 1 in. thick, sub- 

 incrassated below, very obtuse, substance and surface like that of the pileus. 

 — M. J. B. Known from its coarse habit, and becoming red when bruised. 

 Spores papillose, diameter '0003 in. 



614. Russula adusta. Fr. " Scorched Russula." 



Pileus equally fleshy, compact, depressed, nearly infundibuli- 

 foiTQ ; margin at first inflexed and smooth, then erect and with- 

 out striae ; stem solid, blunt, dingy-cinereous ; gills adnate, then 

 decurrent, thin, crowded, unequal. — Fr. Epicr.j^.^^O. Krombh. 

 «. 70,/. 7-11. Batt.t. IS, C. Barla.t.ll. Ann. N.H. no. SOO. 



In woods. Sept. Oct. [United States.] 



Commonly smaller then R. nigricans, pileus at length infundibuliform ; 

 gills decurrent, thin, crowded j colour when young pallid or whitish, when 

 old as if scorched, sooty- grey .—-i^ri'es. Well distinguished by its compara- 

 tively thin, crowded gills, and other points.— JS. d;Br. 



615. Russula delica. Fr, " Whitish Eussula." 



Pileus equally fleshy, firm, umbilicate, even, shining ; margin 

 involute, smooth, without stri^ ; stem solid, compact, white ; 

 gills decurrent, thin, distant , white.- — Fr. Epicr. p. 350. Batt. 

 t.\l,A. Paul. t. 73,/. 1. Krombh. t. 70, f. 12,13. Vent. t. 4:8,/. 

 3,4. 



In woods. 



Stem solid, short, 1-2 in., ^ in. and more thick, even, smooth, white. Pileus 

 everywhere fleshy, 3-5 in. broad, firm, uD:ibilicate, then infundibuliform, 

 regular, even, smooth; margin involute, without striae. Flesh firm, dry, 

 white. 



