16 JOUENAL OF THE MiTCHELL SoCIETY \_June 



8. Lactarius atroviridis Pk. 



Plates 12 and 40. 



A firm heavy plant up to 10 cm. in diameter, with very short stem. 

 Cap covered with a deep green tomentose-fibrous superficial layer 

 which is distributed in different degrees in expanding: where it is 

 thinnest the color is less intense. Flesh about cartilage color, scarcely 

 changing when cut. Milk white, changing after a good while to a 

 light dull green, very peppery. 



Gills reaching stem, and in some cases slightly decurrent, only 

 3.5-5 mm. deep, not crowded, many short, but no forked ones, pallid 

 flesh color changing to dull green then dirty earth color when bruised. 



Stem short, 2.5-4.6 cm. long, 1.5-2.2 cm. broad at top, tapering 

 downward, very fragile, stuffed, but hollowed by grubs. Its surface 

 is like that of the cap, and it is also blotched in the same way with 

 deeper and lighter green. 



Spores light cream, spherical, distinctly tuberculate, 6.5-7.4ai in 

 diameter. 



Kot before reported south of the District of Columbia. For an 

 illustration in color see Mycologia 8: PI. 187. 1916. 



790. Woods in Battle's Park, September 19, 1913. 



872. About twenty feet from the brook in Battle's Park, behind Dr. 

 Wheeler's house, October 3, 1913. Photo. Spores as above, 5. 5-8. 3m. 

 903. Woods, Battle's Park, September, 1913. 

 1721. Growing in woods near branch west of Meeting of the Waters, Septem- 

 ber 9, 1915. 

 2300. Mixedi woods south of Dr. Pratt's, June 28, 1916. 



9. Lactarius torminosus (Schaeff.) Pers. 



Plates 13 and 40. 



Cap large, usually 10-12.5 cm. broad, strongly depreseed in center 

 to nearly infundibuliform, the margin involute until full maturity, 

 surface zonate, duU-ochraceous or lighter creamy-tan with tints of 

 pink or lavender pink at times, and in our plants always more or less 

 distinctly zonate, viscid, felted tomentose on the marginal third until 

 maturity, the margin most felted and remaining visibly so until full 

 maturity or old age. Flesh only 6-7 mm. thick at stem, white, un- 



