Favoritos de sadie_hickey

Specimen had many mature-looking asci but they were empty (photo 5). Could not find any spores.
Keyed in McCune's Microlichens as best as possible without spores. Still need to perform I test, medulla should be + Blue.
Key traits: apothecia with lecedeine margin--dark outer, hyaline inner (photos 3 & 4); epihymenium green-blue, hypothecium pale/hyaline; thallus K-

Growing on serpentine, causing an obvious rusty halo on rock at edge of thallus. Habit: fully exposed serpentine ridgeline.

On Geopora:
https://www.inaturalist.org/observations/208652805

Spores dark brown (speckled in transmitted light), smooth, broadly fusiform to citriform; walls 1.5 µm thick;
(23.5) 24.1 - 27.4 (28.8) × (13.1) 13.5 - 16.3 (17.4) µm
Q = (1.5) 1.6 - 1.9 (2) ; N = 31
Me = 25.9 × 14.8 µm ; Qe = 1.8.

In coast live oak and bay laurel duff. Cap velvety when young, opening into somewhat broad appressed scales. Cap remaining mostly conical. Stipe texture same as cap. Densely matted cobwebby basal tomentum with rhizomorphs extending from the cobwebby material. Gills with pink hue even when young.

Microscopy: @rudydiaz

Odor oil paints.
Asci 1 to 2-spored, balloon-shaped, (91.6) 91.63 - 110.2 × (64.6) 64.61 - 75.37 (75.4) µm (Me = 98.6 × 70.3 µm). Ascospores globose with honeycomb ornamentation composed of ridges 4.5 µm thick;
(36.7) 38.9 - 43.4 (45.7) × (33.3) 35.4 - 42.6 (44.8) µm;
Q = 1 - 1.1 ; Me = 41.7 × 39.6 µm ; Qe = 1.1.

Chaparral, in soil and duff under Arctostaphylos and chamise.

Truffle, 3 cm broad. Exterior tan, with tiny orange scale. Interior white, consisting of "crumpled" hymenium with wide spaces between folds.

Asci cylindrical, unitunicate, croziers present, IKI-, 193.7 - 237.2 × (18.5) 18.51 - 27.88 (27.9) µm (Me = 209.8 × 22 µm).
Paraphyses clavate, septate, 7 - 10 µm thick, with hyaline oil droplets.

Ascospores hyaline, smooth, broadly elliptical, copiously guttulate with large central guttule;
(23.3) 23.7 - 27.3 (27.9) × (14.1) 14.4 - 16.9 (19.2) µm
Q = (1.4) 1.5 - 1.76 (1.8) ; N = 30
Me = 25.7 × 15.7 µm ; Qe = 1.6.

Erupting with spherical black sporocarps of Melanospora sp.
http://www.inaturalist.org/observations/208835515

Under canyon live oak, Jeffrey pine, knobcone pine, with manzanita and white fir nearby. Discoid/angular with silky yellow cortina persisting and becoming shaggy, attached to edge of abruptly bulbous base. Very slow (~2 minutes) pink-red KOH reaction on stipe and cap. Stipe yellow UVF like Leprocybe, becoming more neon-blue/green/yellow where stained by KOH. Gills with mottled yellow-green UVF. Mild taste. Petrichor and watermelon rind odor.

Under canyon live oak, knobcone pine, incense cedar. Salty taste, sweet & metallic odor. About 2 inches below surface in a loosely bound mat with stringy white rhizomorphs that were attached to the base of truffles. Peridium separating from gleba leaving a cavity between.

Castle Rock State Park- Pseudotsuga menziesii, Arbutus menziesii, Notholithocarpus densiflorus dominant mixed hardwood/conifer forest
Growing on the underside of decorticated Arbutus menziesii off the Saratoga Gap Trail
White to light orange/brown resupinate pored crust. Pored elongate to almost resemble teeth
Like “scentless” laundry detergent... don't really know how else to explain it!
Taste sour/bitter
KOH orange/brownish
Whole sporocarp fluoresces yellow/green and KOH fluoresces bright blue

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

On the underside of a piece of bark in Hesperocyparis sargentii and Quercus durata forest. Yellow and brown cobwebby crust fungus, margins extending into a whitish fuzzy network, hymenium chocolate brown with yellow tinges at the edges. Texture surprisingly stretchy but fragile and easily folded, not solidly attached to the substrate.

Growing along roadcut in redwood forest. Pileus brown, minutely granular-scaly. Lamellae thick, widely spaced; yellow to white, widely attached to decurrent. Stipe bright yellow, brittle, dry, ornamented with white granular chevrons at the apex and bright white farina at base.