LACTARIAE ОЕ THE UNITED STATES 67 
Lactaria cinerea has been classed with the Lzmacinit by Sac- 
cardo, but seems to belong rather to Russu/aria on account of the 
less acrid latex, the less viscid pileus, the more lax flesh, as well 
as the changing gills. 
d Synopsis of species 
Latex white, not staining gills. 39. Lactaria cinerea. 
Latex white, becoming gray. Lactaria vieta. * 
39. LacTARIA CINEREA Peck, Кер. N. Y. St. Bot. 24: 73. 1872. 
[As Lactarius.] — Hennings, in Eng. & Prantl, Nat. Pflanzen- 
fam. п'е: 217, 1498 
Pileus fleshy, thin, lax, convex at first, soon umbilicate to de- 
yressed in the center, at length infundibuliform, cinereous ( 358), 
I 
No. 105, 1907, Burlingham. 
FIGURE 11. ZLactarta cinerea Peck, 
darkest in the center, becoming pale toward the margin, fading, 
occasionally zonate, viscid when wet, glabrous, 2-5 cm. broad, 
margin involute at first, at length arched or uplifted, even ; gills 
or where bruised, often appearing pruinose, 
or 2 mm. of the 
-- 
white, not changing со! 
especially in dried plants, a few forking within 1 
stem, close, adnate, rather narrow ; stem of the same color as the 
* European species, the occurrence of which in the United States is uncertain. 
