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Really unsure about this one - speculative ID. Particularly interesting how this had also taken over fern. Not slime mold, relatively firm. Rosette like form. Might go back to get this for sequencing. Primarily on alder (or birch?)

asci clavate, 8-spored, with small, amyloid apical plug, inoperculate

(37) 39 – 44μm (47) x 2.5 – 4μm | paraphyses filiform, with contents, some appearing encrusted, not forking, ~ascus length, some longer, some shorter x 1-2μm | spores hyaline, irregularly cylindrical-fusiform, some slightly curved or appearing boletinoid, aseptate or rarely one-septate, aguttulate (5) 6 – 8μm (11.5) x 1.5 – 2μm | downy margin elements (?) composed of septate hyphae, filled with bluish, globular, refractive contents, some terminating in distinct fascicles, appearing dark brown when grouped (fascicles) but individually hyaline

Substrate: dead corn lily stems (Veratrum californicum)

Habitat: mixed conifer mountain forest

Ecoregion: Sierra Nevada Forests

Collector: D. Newman & B. Mandapati

Collection #: SFSN001

Collected for the 2016 SFSU Spring Fungi of the Sierra Nevada Field Course

HAY-F-004182
-Mountain Home Cal Fire Forest, Fraiser Mill camp. Along meadow.
-Cedar, Conifers, Sequoia, small grasses and herbs.
-Found in cedar and sequoia duff and twigs.
-Substrate is moist dirt.
-Odor is trametes like, watery smell.
-Taste is mild sweet
-UV reaction strong green blue on gills and cap.
-KOH strong red orange reaction.
-Interior flesh yellow and dark brown with hollow stipe. Rusty brown spore print. Stipe with annular mark, stipe below annular zone is flocculose. These were found at first in a few small clumps but before the end of the day I found hillsides with thousands fruiting together in massive quantities.

HAY-F-004361
On Rocky bar rd downslope of Slug Gulch. 2500' elevation.
On cut logs from a fire which lay half submerged in mud and a stream on the uphill side of a culvert. Very exposed area.
Substrate- muddy wood, and sand.
Taste- slightly unpleasant metallic.
KOH- Negative.
UV - becoming slightly pale.
Fruiting in a variety of substrate in this spot. There appears to be a water level rise as some of these are submerged in water while others are very near to the stream.

HAY-F-004368
Ingahee Rd at valley floor where the forked river island sits just west of the road. 15’ from creek.
Cedar, pine, fir, alder, oaks and maples. Trillium plants nearby.
An oak branch buried in river silt, with grasses and trillium nearby. Leaf litter and dead grass.
Leaf litter dead grass and woody mulch substrate.
Rotten hay or ‘chicken-coop’ smell. Mild taste.
UV slight on white striations of cap and gills.
KOH darkening.
Distinct striations on cap. Stipe slightly curved and white. Gills black and spores black. Volva-like collar around base. Clear worm exited from base when extricating specimen.

HAY-F-004187
Ingahee Rd at valley floor where the forked river island sits just west of the road. Across the south bank of southern creek, 5’ from water.
Cedar, pine, fir, alder, oaks and maples and moss.
Cedar stump, maple and cedar trwigs.
Wood substrate.
No odor. Mild taste.
KOH indiscernible.
UV reactive around cap margin which becomes brighter, stipe glows green. Found other mushroom nearby only one and it was much larger and pale. There was some kind of bright red/ orange spider or mite that was living extremely close to the bonnets.

HAY-F-004367
Ingahee Rd at valley floor where the forked river island sits just west of the road. Across the south bank of southern creek, 5’ from water.
Cedar, pine, fir, alder, oaks and maples and moss.
Cedar stump, maple and cedar trwigs.
Wood substrate.
No odor, did not taste.
Did not KOH.
UV bright green on stem and blue on cap.
Found within inches of orange bonnet. Gills light brown compared to cap which is pale white. Stipe and cap translucent.