Lactarius subvernalis var. cokeri
This mushroom exhibits a dizzying degree of cap color and color pattern
variation.  Luckily, it has other telling features that help in identification.
The flesh of Lactarius subvernalis var. cokeri undergoes a color
change when exposed to air; this specimen changed from white to
pink in two minutes and from pink to reddish-pink in fifteen minutes.
When cut, Lactarius subvernalis var. cokeri will
exude a white milky latex that does not change
color, although the area cut will change to pinkish.
Another feature of this milk cap that can
vary is
gill attachment, sometimes appearing
adnate and sometimes decurrent.
These microscopic cells (cheilocystidia)
appear on the gill edges of
Lactarius
subvernalis var. cokeri
.
See Lactarius subvernalis var. cokeri at
MushroomExpert.Com