1916'] The Lactarias of ]^orth Cakolhsta 11 



7 mm. thick near the stem, firm, white, turning light greenish cream 

 when cut, with a faint tint of bluish gray, peppery to the taste. Fresh 

 milk was not obvious, as the plants were very dry, but it probably 

 turns a greenish cream as indicated by cut flesh. 



Gills quite close when young, moderately narrow, about 2-2.5 mm. 

 deep in good-sized plants, light greenish cream in young plants, then 

 dull cream, then cinnamon-buff (Ridgway). The gills fork only 

 slightly, but often anastomose, particularly near the margin. In 

 this collection (]!^o. 1218) the gills in all the six plants were abund- 

 antly dotted on the edges with small milk-white droplets of dried milk. 



Stem rather short, but not so stubby as in L. vellereus, 2-4.5 cm. 

 long, 1.2-2 cm. thick, tapering downward; surface finely velvety like 

 the cap, white except at the top where it is bluish gray. The flesh is 

 like that of the cap and turns the same color when cut, very solid and 

 not becoming cavernous. 



Spores white, smooth, oval, 5.1-6.5 x 6.8-8.5/a. 



One of the most notable characters of this collection was the bluish- 

 gray color of the stem surface at the top and the faint tint of this same 

 color in the gill surface and cut flesh. 



The plants differ from typical L. vellereus in the closer and nar- 

 rower gills which are not maize-yellow; more finely tomentose cap 

 (the tomentum of L. vellereus is in places almost hairy under a lens) ; 

 firmer stem ; more graceful shape, and tints of green in cut flesh. It 

 is like L. suhvellereus except for the swamp habitat, the bluish-gray 

 color of the stem apex and same tint plus greenish in the cut flesh. 

 In these characters and in the greenish tint of flesh it approaches 

 L. Allardii, but it differs from that in the white cap, gills not dis- 

 tinctly veined and not becoming reddish brown finally when wounded, 

 in the less finely velvety cap and in the very different appearance of 

 the dried plants which have lighter gills and darker, smoother stems 

 than in L. Allardii. Miss Burlingham has seen my phmts (No. 1218) 

 and confirms their reference to L. suhvellereus. 



1218. In swamp of New Hope Creek, one-quarter mile below Durham road 

 crossing, July 27, 1914. Two photos. 



