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

Rodent digs found throughout the area exclusively under chamise. Manzanita also present, and interior live oak within 100 feet, but digs were only under chamise. Digging revealed that the mycelial mat that truffles were found in and smelled the same dissipated with distance from chamise. Melanogaster also mixed in and more abundant. Parts of the mycelial mat smelled like Melanogaster and parts smelled like these -- distinctly of oil paint. Woodrat nest about 8 feet away.

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.

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.

BDC-0105-23

Growing attached to roots of toilet brush ginger.

KOH not reactive; UV not reactive; odor similar to T. versicolor; taste metallic/astringent; cap 5.5 cm; height 1.5 cm.

Notes: Growing next to/possibly attached to a ginger plant. Lacks black band beneath tomentum. 6-7 pores/mm.

BDC-0103-23

Growing on fallen wood. Ceirodendron and Ohia in the area.

KOH brownish blotches; UV reactive (orangish); odor indistinct; taste not tested; size 1-2cm x 2-3cm.

Notes: Fairly diminutive.

FDS-CA-00708
Reinhardt Redwood Regional Park, Pinehurst Staging Area- EBRPD. Baccharis pilularis, Eriogonum fasciculatum, Frangula californica, Umbellularia californica and Quercus agrifolia dominated CA chaparral and woodlands
Growing on dead Eriogonum fasciculatum twig
Extremely small orange stipitate Ascomycetes with seemingly serrated margins

FDS-CA-00750
Mixed hardwood/conifer coastal forest near the south fork of the Gualala River
Growing on dead Arbutus menziesii leaves fallen near the side of dirt road. Studding the underside with affinity for the central vein
Tiny orange spheres. Hard to the touch. Endophytes?

In mixed hardwood/conifer coastal forest: Pseudotsuga menziesii, Sequoia sempervirens, Notholithocarpus densiflorus, with Vaccinium ovatum and Polystichum munitum dominant understory
Growing on side of road in a ditch with compact, gravelly soils. Forest edge
Pileus olive/brown becoming more tan near margin, studded with small fibrous hairs. Stipe silvery grey, fibrous, also studded with small fibrous hairs. Lamellae white to cream colored, narrowly attached to notched, serrate
Smell and taste indistinct

Annadel State Park, Lawndale Trail. Mixed oak/hardwood/conifer forest
Growing in soil and Pseudotsuga menziesii duff on mossy trail cut
Rounded to oval, concave olive green cups with white, tomentose margin and fine, white hairs covering outer excipulum
Smell indistinct
Taste mild
KOH brown on exciple

In mixed hardwood/conifer coastal forest: Pseudotsuga menziesii, Sequoia sempervirens, Notholithocarpus densiflorus, with Vaccinium ovatum and Gaultheria shallon dominant understory
Growing from disturbed, clay rich soil in a ditch on the side of the road
Highly tomentose, bell shaped brown pileus with a white frilly margin. Stipe white/light brown, fibrous also tomentose near the apex. Lamellae white, free
Smell instinct
Tate mild
No KOH

Salt Point State Park, Central Trail near the water towers. Confier/hardwood mixed coastal forest; Sequoia sempervirens, Abies grandis, Pseudotsuga menziesii, Notholithocarpus densiflorus, Pinus muricata, Arbutus menziesii
Growing in blackened, diseased part of a young Pseudotsuga menziesii
Tiny, orange, stipitate Ascomycete. Exciple and margin covered in white hairs

Salt Point State Park, near Central Trail. Mixed confier/hardwood coastal forest; Sequoia sempervirens, Abies grandis, Pseudotsuga menziesii, Notholithocarpus densiflorus, Pinus muricata, Arbutus menziesii
Growing on a well rotted and de-barked Notholithocarpus densiflorus
Tiny, pea sized orange pleurotoid fungus. Laterally attached stipe with distantly spaced, subdecurrent lamellae. Pileus striate, so thin you can almost see through it. Reduced stipe covered in tiny white hairs.
No noticeable smell, taste mild

Burned Quercus/Pinus dominant woodland (now shrubland post-burn), just west of Knoxville road near Lake Berryessa
Growing on bark layer of in-tact but fallen Pinus sabiniana. Seems to be radially growing from little holes in the bark/cambium layers (insect?)
Zonate, resupinate, with fleshy folds throughout. Growing in concentric zones of color starting from deep red to orange, and white near the slightly tomentose margin. One fruit body slightly reflexed
Smell indistinct
Orange brown KOH in white light, fruit body orange under UV, KOH streak turning blue

Burned Quercus/Pinus dominant woodland (now shrubland post-burn), just west of Knoxville road near Lake Berryessa
Growing in soil and directly off fine roots in a hole leftover from a burned out root system
Brown pileus with a wavy margin. Lamellae white to cream colored, anastomosing, subdistant to distant, broadly attached to subdecurrent. Stipe short, fibrous, off-center
Smell indistinct

Annadel State Park, just off Lawndale Trail. In robust chaparral habitat under large power line system
Fruit bodies growing from white mycelial “cocoon” in soil under Adenostoma fasciculatum
Strange, cordyceps-like fungus with two sporocarps emerging from a white, mycelial "cocoon" buried underneath the surface of the soil. Sporocarps like little bulbous clips, covered din a white, cracking tissue. No in-tact insect body detected, but some spherical chitinous remains of what seems to be of insect origin were found

FDS-CA-00707
Reinhardt Redwood Regional Park, Pinehurst Staging Area- EBRPD. Baccharis pilularis, Eriogonum fasciculatum, Frangula californica, Umbellularia californica and Quercus agrifolia dominated CA chaparral and woodlands
Growing on dead grass under Eriogonum fasciculatum (no flowering stalk to grass so I couldn’t identify)
Tiny pink stipitate Ascomycete with a slightly darkened margin

FDS-CA-00746
Mixed hardwood/conifer coastal forest near the south fork of the Gualala River
Growing in duff-covered soil on the side of the road
White to yellow parasitic fungi on Trichoglossum
Smell a little like seafood
Fluoresces orange/pink

FDS-CA-00737
In Pinus radiata and Quercus agrifolia dominated coastal mixed hardwood/conifer forest
Growing in thick pine duff under Pinus radiata
Pinkish-purple viscid pileus, white equal stipe with broadly attached lamellae, white and crowded when young becoming cream to yellowish and more broadly spaced in age. Solid internal stipe
Smell indistinct

Taste mild
Bright red KOH on pileus
Stipe and lamellae fluorescing bright yellow, pileus bright blue

“Albogymnopilus nanus” nom prov.

Salt Point State Park, Central Trail near the water towers. Mixed confier/hardwood coastal forest; Sequoia sempervirens, Abies grandis, Pseudotsuga menziesii, Notholithocarpus densiflorus, Pinus muricata, Arbutus menziesii
Growing in sandy soils under Notholithocarpus densiflorus and Rhododendron groenlandicum on side of trail
Small white mushroom with white to cream, smooth pileus and stipe, light orange to brown narrowly attached lamellae. Rusty brown spore print
Smell indistinct
Taste mild
Extremely fluorescent (green/yellow) on all parts!

FDS-CA-00704
Reinhardt Redwood Regional Park, Pinehurst Staging Area- EBRPD. Baccharis pilularis, Eriogonum fasciculatum, Frangula californica, Umbellularia californica and Quercus agrifolia dominated CA chaparral and woodlands
Growing abundantly in Baccharis pilularis leaf litter
Tiny white, almost translucent Hemimycenoid with veil-like decurrent lamellae
No smell detectable

Growing in mid elevation mixed conifer forest. Pileus pink to pale yellowish white, broadly campanulate. Lamellae peachy pink, fading to white. Stipe smooth, pinkish at apex, fading to greyish brown at the base, with greyish basal tomentum.

Growing on the inner surface of a hanging sheet of Quercus chrysolepis bark. Pileus tan with a scalloped edge, dusted-crystalline texture with more whitish ornamentation towards the margin. Lamellae widely spaced, decurrent to widely attached. Stipe small, light tan.

Growing in edge-riparian pine forest on ultramafic soil. Pileus yellow, flat to ruffled and uplifted at margin, K-. Lamellae dingy brown, free to narrowly attached. Stipe whitish, with rusty-brown spore covered cortina remnants and a spade-shaped base.

Emerging from side dead conifer, possible Jeffrey pine.
Secotioid agaric with shape of squashed baseball. Cap slimy, orange-yellow with fibrillose reddish brown scales. Gills grayish brown, wrinkled, looking like meat. Stipe well-developed but squat; white with reddish brown scales. Thick partial veil, becoming separated in older specimens but cap margins still very close to stipe (not opening).
Odor woody. KOH+ pink.

Wash. In shade under Salix, emerging from woody debris and alluvial soil.
Cap orange-brown, darker at center, plane, gently umbonate. Gills dull orange. Stipe reddish brown, lighter on upper 1/4.
KOH red. Not UV reactive.