Found by Jordan Gates,
Dark rounded top,
Yellow to white stipe,
Parasitizing truffle,
Growing trailside near bay laurel and redwood
Growing low to the ground (1-2” tall maximum). This is the only plant of this kind with white that I saw in the immediate area. Roughly 50 yards away or so I found another single plant with white on the outer edges of the leaves like this.
Hairy pileus. Growing on decaying conifer.
This was growing in an old garden.
Wondering if these are ebony cup (pseudoplectania nigrella), but they were fairly large. 1.25-1.5” across