Looks like L. brumalis, but I found it in September. Singular.
Mushrooms stained blue-green all over. Orange latex without flavor. Under Pinus strobus.
3 white mushrooms with brown spots in the centers of their caps. Seeming to have false gills or poorly-developed gills. Faint chlorine odor. Spongy texture. Under Pinus strobus. Maybe something being parasitized?
KOH negative on cap and "gill" surfaces, staining context light brown.
Under 2-needle pine, softball-sized
Spawning as individual growths at the bottom of a pine tree.