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On red cedar stump fallen in the past few years. White shelving growth which on the other side of the stump appeared shingling/fully resupinate. Encrusted cystidia and broadly elliptic to globose spores observed.

Abundant on site. Area with Doug fir, western hemlock, vine maple and alder. I was unclear if there was bruising, there were some that seemed to be slightly warmer in color on pores, but it was definitely not like the distinct bruising of Postia fragilis.

Growing on a hardwood log. Causing a white rot. Fruiting bodies cartilaginous. All structures inamyloid. Trimitic with clamped generative hyphae. Cystidia absent. Basidia 4-sterigmate. Spores smooth and thin-walled. Spore measurements from Piximetre: (2.7) 3 – 3.5 (3.6) × (1.8) 1.9 – 2.3 (2.4) µm, Q = (1.3) 1.4 – 1.7 (1.8); N = 17, Me = 3.2 × 2.1 µm; Qe = 1.6

Individual spores: 3.50 × 1.96 µm, 3.01 × 1.83 µm, 3.14 × 2.20 µm, 3.44 × 2.11 µm, 3.59 × 2.05 µm, 2.99 × 1.87 µm, 3.10 × 2.18 µm, 3.19 × 1.87 µm, 3.63 × 2.36 µm, 3.31 × 1.92 µm, 2.95 × 2.20 µm, 3.12 × 2.08 µm, 2.75 × 1.78 µm, 3.01 × 2.26 µm, 3.11 × 1.92 µm, 3.40 × 2.32 µm, 3.11 × 2.03 µm

On dead mature Pinus rigidus, at edge of swamp and creek. Pine Barrens. It starts as a round shape and with time it coalesces. It presents a lighter color effuse margin; hymenium is of merulioid aspect.

Collected by Crissy Ditty on a group hunt. 5 fruiting bodies were growing out of a hole in the ground near Tsuga canadensis, Pinus strobus, Fagus grandifolia and Quercus sp. Possibly other trees as well. Caps slimy. Younger caps were a deeper brown. Taste acrid but not strongly. Odor indistinct. Stems dry with pruina toward the apex.

What is this?!

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Additional notes for sequences (bases on the right):

ITS: https://mycomap.com/...

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Originally posted to Mushroom Observer on Jan. 25, 2020.

On small dead birch trunk in wet mixed forest. Looks like thin, pink pie crust has been slapped on this sapling! ID is just a guess based on images online. Hydnoporia corrugata may also be a possibility?

"Resupinate, odontioid, cream to ochraceous. Monomitic, hyphae with clamps. Two kinds of cystidia: 1)Hyphoid, tubular with globose apex, thin walled, strongly constricted, 2) lagenocystidia, narrower in the needle apical part, encrusted terminal part. Basidia clavate to cylindrical with a median constriction, 4 sterigmata, and a basal clamp." Corticiaceae by Annarosa Bernicchia.

Voucher 2681
On conifer forest, sometimes around stumps, or at the edge of the stump itself. Or on buried roots of shrubs around creeks, in within the conifer forest.
Velvety, dark, fleshy (1.5 cms. over center). Only slightly depressed on the center. The length of the stipe varies, I think that depends on how deep the attachment to the buried wood, or root is.
About 5 pores per mm.
Spores (7.7-9.0) x (3.3-4.0); Ave Q=2.24, cylindric.

Resupinate spongy polypore growing on Atlantic white cedar. Pine Barrens. Swampy area. 1 1/2-3 pores per mm. Margin fribrose and delicate. Pale yellow inside pores. On the second sample there are powdery areas. Basidia: 19.7-27 x 4.9-5.1 um. Hyphae with clamps and thick walls: 2.7 um.

Collected along the Blackbird Knob trail. Growing on a Picea rubens stick near Betula alleghaniensis, Fagus grandifolia, Acer spp., and Picea rubens. Co-occurring with Phanerochaete sp. DG2308124. Not fluorescing under 365 nm UV light.

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Originally posted to Mushroom Observer on Aug. 23, 2023.

Pale yellow resupinate polypore; bruising vinaceous/orange; binding leaves and branches, and also growing on wood. Perennial. With cordons running in different directions under litter. Spores 4.9-6.1 x 4.4um. Basidia with four sterigmata22.2 x 4.9um. Skeletocystidia very thin. No clamps seen. No cystidia seen. The smell is fragrant and agreeable. Pores are round 7-8 per mm. On hardwood.

Ecoregion: Southern Outer Piedmont
Habitat: Growing on the bark of a fallen branch of Pinus taeda/Loblolly pine.
Substrate: Wood, dead conifer
Nearest_Tree: Conifer, Pinus taeda/Loblolly pine
Habit: Few
Fruitbody: Largest, ca 11-12 cm long x 5-6 cm wide; ca. 1-2 mm thick on open face of bark. Smaller fruitbodies in recessed areas were thicker – 4-5mm deep. Ochre hymenium with white margin; pores angular to irregular on thinner fruitbody 4-5 pores/mm; larger elongated pores on thicker fruitbodies.
Chemistry: Unchanged with KOH (3%)
Collection_#: FYA-20190225-06
Remark: ID confirmed by ITS sequencing