Favoritos de acorncap

Mixed chaparral. In rodent dig with loose cover of duff under Quercus berberidifolia.

Hypogeous gasteroid fungus, exterior yellow-gold. Interior white with maze-like folds. KOH-

Odor at first indistinct, later developing odor of rice after refrigeration for a couple days.

Asci balloon-shaped, 99 x 57 µm; variably 3- to 5-spored, popping when pressed on with cover slip. Ascospores hyaline, smooth hyaline, with spindly protrusions in developing ascus, egg-shaped to subglobose, 18-20 x 14-16 µm.

Chaparral. On Ribes indecorum
Ascoma erumpent perithecia with a central depression. Peridium brilliant orange pseudo-parenchyma. Asci thin-walled with many hundreds of spores. Ascospores allantoid, 3-3.8 μm.
Anamorph red orange, erumpent, often together with teleomorph.

On Cylindropuntia californica. Erumpent clear jelly that changed to brown/orange then black when dried and no longer jelly-like. Left black scars on the cactus. No other fungi present to suggest that it was parasitic on Stereum, Peniophora or else

Under chamise; no scrub oak in the immediate vicinity.
Cap 1-1.8 cm, umbonate, deep chestnut color, velvety, scaly, rimose. Cortina attached to margins. Gills dull brown to rusty brown, adnate to 'toothed'. Stipe 2-3 x 0.2-0.3 cm, lighter than cap, scaly, snake skin pattern. Odor indistinct.
Spores rough, [9.4]9.6-10[10.4] x [4.3]4.5-5.4 µm

Chaparral, mixed scrub oak and chamise.
Cap metallic brown to vinaceous, rimose, plane, umbonate. Distinct vellipellis. Veil remnants on margin. Gills grayish brown. Stipe solid, equal, caulocystidia only on upper 1/3.
Odor farinaceous.
Spores gently nodulose, fat frog-shaped, 8.9-10.2[11.2] x [5.5]5.7-6.3 µm
Pleurocystidia apically encrusted, metuloid (1.2 µm thick), lageniform, 57 µm; some utriform, shorter.
Cheilocystidia lageniform, smooth apex, some apically encrusted.

Apothecia immersed in wood of dead Adenostoma branches along W-exposed hillside. Coastal Artemisia, Adenostoma, Cneoridium scrub with Pinus torryana.
I'm not familiar with this genus, but it seems that P. viridis and P. versicolor can be variable in color.

Observation from same location:
https://www.inaturalist.org/observations/150888553

From general vicinity:
https://www.inaturalist.org/observations/150316889

substrate/habitat = fruiting beneath well rotten small Cupressus sargentii log with Arctostaphylos root running ~8 inches away. the same roote further up close to the the trunk of the Arctostaphylos had a similar mushroom fruiting

KOH = slight darkening of the cap

scent = none detected

UVF 365 nm = lite blue-green on gills

Fruiting in small groups in two adjacent hummocks from moss and liverworts, amongst Thelephora sp., under large Adenostoma fasciculatum with Salvia mellifera and Xylococcus bicolor nearby and unidentified ferns. No distinct odor, mild taste