458 RUSSULA 



bilicate, then somewhat infundibuliform, at first delicately tomen- 

 tose, then only in little patches. St. 2-3-5 x -5-2 cm., white, becoming 

 somewhat light brown, attenuated at the base, finely tomentose under 

 a lens. Gills white, exuding watery drops when young, decurrent, or 

 adnate, crowded, narrow, sometimes branched near the margin, rarely 

 bifid at the base. Flesh white. Spores hyaline, subglobose, 8-9 x 

 7-8 /z, verrucose, with a large central gutta. "Hyphae containing 

 oil globules traverse the tissue and terminate in cystidia-like bodies, 

 60-70 x 6-8jti." Bres. Smell pleasant, taste slowly acrid. Deciduous, 

 and pine woods. Aug. Oct. Not uncommon, (v.v.) 



1498. R. chloroides (Krombh.) Bres. (= Lactarius exsuccus (Otto) 

 Fr.; Russula delica Aut. plur. pr. p. Bres.) Bres. Fung. Trid. 

 t. 202. %Xw/oo9, pale green; etSo?, like. 



P. 6-15 cm., pallid then ochraceous, convexo-plane, then somewhat 

 infundibuliform, pubescent, soon smooth, areolately cracked in dry 

 weather. St. 3-6 x 2-3-5 cm., white then concolorous, the extreme apex 

 incirded by a greenish zone, equal, or attenuated at the base, rugulose. 

 Gills whitish, or greenish, becoming pallid and often spotted fuscous in 

 old age, subdecurrent, or sinuato-adnate, broad, somewhat crowded, 

 connected by veins. Flesh white, cheesy. Spores hyaline, subglobose, 

 8-11 x 8-10 ju,, echinulate. Cystidia fusiform, 70-90 x 8-1 2 p. Smell 

 at length unpleasant, taste acrid. Woods. Aug. Dec. Common, 

 especially in some years, (v.v.) 



1499. R. elephantina Fr. (= Russula chloroides Krombh. sec. Bataille.) 



e\e(f>dvTivo<;, of ivory. 



P. 7-5 cm., fuscous-tan, paler at the margin, convexo-umbilicate ; 

 margin undulated, exceeding the gills. St. 5-7-5 x 2-5 cm., shining 

 white, obese, very hard. Gills white, spotted pale yellowish when 

 touched, obtusely or sinuato-adnate, arcuate, somewhat crowded, thin, 

 divided behind. Flesh of stem shining white. Spores "14 x 10 jit" 

 Sacc. Woods. Sept. Rare. 



**Flesh becoming black. 



1500. R. nigricans (Bull.) Fr. Cke. Illus. no. 970, t. 1015. 



Nigricans, becoming black. 



P. 5-20 cm., olivaceous-fuliginous, at length black, convex, then 

 flattened and umbilicato-depressed, slightly viscid when moist, at 

 length rimoso-squamulose. St. 3-7 x 2-5 cm., pallid, at length black, 

 equal. Gills ochraceous, reddening when touched, rounded behind, 

 slightly adnexed, thick, distant, wide. Flesh firm, white, becoming red 

 on exposure to the air, and finally black. Spores white, globose, 8-9 /x, 

 verrucose, with a large central gutta. Cystidia "only on edge of gill, 

 vesiculose, then ventricose, pointed, 45-60 x 15-30 /x" Rick. Taste 

 mild, then acrid. Woods. June Dec. Common, (v.v.) 



