plicate

Stipe very short, plicate, red-brown, arising from a small hypothallus.

The peridium is round, often slightly depressed above, plicate below, where it is abruptly contracted into a long stem-like base.

The third glume is broadly ovate-oblong, subacute, 1-nerved, paleate; the palea is plicate in the median line.

The margin of the cap, especially in old plants, is somewhat wavy or plicate as in Lactarius fuliginosus.

The plant is recognized by the pale yellow color of the caps and the plicate striate character of the margin.