Favoritos de rosawoodsii

Peridium of immature fruitbodies staining stronlgy purple, long expansive rhizomorphs present, odor was mild, becoming foetid throughout the day.
Fruits 1.2-2.5 cm. fruiting around rotten Ohia, M. polymorpha, with Strawberry guava close by.

Rye the truffle dog pointed this one out, just off the sidewalk in soil about an inch underground. Found at night so the location pics are a bit dark, but the tree closest was some kind of ornamental cedar. Directly across the street was a large Doug-fir which I assume is the host tree.

Found by truffle dog Rye in a monoculture stand of ~40 year old Douglas-fir. Truffle well into the mineral layer of the soil, right at the base of a tree. Aroma mild, sweet, with undertones of cooked vegetables. Pleasant to me, mixed reactions from others. Peridium mottled brown, with variable warts. Gleba firm and marbled.

Microscopy by Noah Siegel.

Flowering and fruiting submerged in the clear deep cold water of the lake.

Comments on the photos by Dr. Gerhard Wiegleb: "the plant does not really look like European R. trichophyllus. the petals are broadly obovate and too wide. R. trichophyllus has narrow lanceolate or spathulate petals which are not contiguous during anthesis.
The regular shape of the submerged leaf strongly indicates a membership to the R. circinatus group. while in euro-westasian R. circinatus the capillary segments are rigid and are strictly lying in one plane, in amphi-pacific R. subrigidus the capillary segments are subrigid (!) and not in one plane (slightly 3-dimensional). R. trichophyllus has submerged leaves which are subrigid to flaccid, which are always longer than wide. The nectar pits (in the photo) are trough-like with an apical extension, not really pyriform but rather triangular. This is typical for R. subrigidus……. Both R. circinatus and R. trichophyllus have lunate nectar pits."