heatherdawson's Identifications

Very soft, light pleasant odor. Yellowish white.
Under white fir.
NN24-0618-1
Spores are around 10-13nm spherical sometimes oblong with small cyanophilous(?) bumps/spines. Reddish brown crystals in peridium

Found in a Pinus jeffreyi, Calocedrus decurrens and Abies concolor dominant forest just northwest of Calpine, Tahoe National Forest
Growing hypogeously in soil just under duff layer
Large, brain-like truffles with a tan peridium covered in fine warts. Inside hollow, lobed, dynamically pitted. Inner tissue covered in a white fuzzy layer with light pink tissue just beneath
Smell yeasty or like play doh
Tastes like nutritional yeast
KOH yellowish on peridium

Found by Dr. Roy Halling

Found in a Pinus jeffreyi, Calocedrus decurrens and Abies concolor dominant forest just northwest of Calpine, Tahoe National Forest
Growing hypogeously in soil just under duff layer
Small, dense, pinkish, lobed truffle. Gleba slightly translucent, brain-like, filled with a cottony hymenium
Smell slightly musty and cheezy, like body odor

*Found by Dr. Roy Halling

Found in a Pinus jeffreyi, Calocedrus decurrens and Abies concolor dominant forest just northwest of Calpine, Tahoe National Forest
Growing hypogeously in soil just under duff layer
Lobed, hollow, peridium finely warty
Smell indistinct, not changing over the period of 1 hour

No UV Reaction on KOH, but active on rest of specimen.

FDS-CA-05287
Russula

Basidia 4-sterigmate, sometimes 3.
Basidiospores broadly ellipsoid, strongly amyloid; uniformly echinate, without reticulum;
(8.4) 8.9 - 10.9 (11.2) × (6.3) 6.8 - 8.3 (10) µm;
Q = (1.1) 1.2 - 1.5 (1.7) ; N = 30;
Me = 9.8 × 7.5 µm ; Qe = 1.

Microscopy thanks to @rudydiaz

Found by trained truffle pup trailside in a stand of ~90 year old Douglas firs. Hypogenous, approx 2 inches down, underneath the remnants of a very old, heavily decomposed cedar stump. Lots of salal & huckleberry nearby.

No notable odor to my nose.