kylecanan's Identifications

Growing solitary to connate from well decayed log. Spore print pink. No discernable odor. Tastes very slightly spicy. Flesh thin, but appeared to be evenly colored throughout.

Cap: 6mm – 18mm. Umbilicate, decurved, dry, sericeous/fibrillose, even margin with uncinate, broad, thick, subdistant, even edged, unequal gills.

Stem: 10mm – 38mm X 2mm – 3mm. Central, round, equal, slightly clubbed, longitudinally striate, squamulous, and solid. Audible snap. White basal mycelium attached to foot.

DNA sequencing matches entry for Entoloma occidentale in GenBank. Sequence is:

AAGTAAAAGTCGTAACAAGGTTTCCGTAGGTGAACCTGCGGAAGGATCATTATTGAATAAAACTTGGTTGGGTTGTTGCTGGCTCTTAGGAGTATGTGCACGCCCACGCCATTTTTAACCACCTGTGCACCTTGTGTAGATCTGGGTACTTGAGAATCGCTCACCAGCTTTTCTCGTATCTGGGTTTATGTTTCTATACACTCCATAAGTATTAGAATGTTGCATTAGGCCATTGTGCCTTTAAACAATAAAACAACTTTCAACAACGGATCTCTTGGCTCTCGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACCTTGCGCTCCTTGGTATTCCGAGGAGCATGCCTGTTTGAGTGTCATTAAATTCTCAACCTCATTACCTTTTACAAGTTAGTGAGGCTTGGATGTGGAGGTTGCTGGCTTCTCTGAAACCGGCTCTTCTTAAATGCATTAGCAGAATCTGTACTGATCATCTTTGGTATGATAATTATCTATACTATTGAAGCTCAGTGATGAATAGATTTCGCTTCTAATCGTCTACTTCAGACAAC

Big thanks to Alan Rockefeller and Stephen Russell for assitance with verifying the results as a match to GenBank KU574742, which may not be correctly identified, and for interpreting the sequence above for sharing.

Growing abundantly in mulch among Rhus aromatica behind Townshend Hall. Annulus lacking. Veil remants on cap margins. Caps without separable pellicles. Odor not distinctive. All structures inamyloid. Monomitic with at least some clamps present. Pileipellis composed of encrusted hyphae. Pleurocystidia absent. Cheilocystidia abundant, mostly ventricose mucronate. Cheilocystidia measurements from Piximetre: (21.5) 22.1 – 28.1 (28.8) × (7.5) 8.4 – 9.3 (9.5) µm, Q = (2.3) 2.5 – 3.2 (3.7); N = 15, Me = 24.9 × 8.8 µm; Qe = 2.8

Individual cheilocystidia: 23.45 × 9.19 µm, 28.11 × 7.53 µm, 23.76 × 9.20 µm, 25.89 × 8.06 µm, 21.89 × 8.99 µm, 24.48 × 9.49 µm, 26.95 × 9.12 µm, 22.28 × 8.90 µm, 22.10 × 8.67 µm, 22.89 × 9.29 µm, 28.84 × 9.39 µm, 25.76 × 8.43 µm, 21.51 × 9.34 µm, 27.15 × 8.54 µm, 28.18 × 8.60 µm

Basidia 4-sterigmate. Spores brown and subrhomboid in face view. Spore measurements from Piximetre: (5.3) 5.4 – 7.4 (7.6) × (2.8) 3.3 – 4.1 (4.3) µm, Q = (1.4) 1.5 – 1.9 (2.1); N = 30, Me = 6.3 × 3.6 µm; Qe = 1.7

Individual spores: 7.40 × 3.53 µm, 6.73 × 3.35 µm, 6.55 × 3.58 µm, 5.30 × 3.67 µm, 5.49 × 3.78 µm, 6.71 × 4.34 µm, 6.52 × 3.53 µm, 5.85 × 3.81 µm, 5.60 × 3.74 µm, 5.94 × 3.14 µm, 6.39 × 3.79 µm, 5.69 × 3.33 µm, 7.27 × 3.89 µm, 6.81 × 3.67 µm, 5.40 × 3.20 µm, 5.32 × 3.47 µm, 5.40 × 3.33 µm, 5.86 × 3.68 µm, 6.26 × 3.52 µm, 7.36 × 3.80 µm, 5.40 × 2.85 µm, 6.09 × 3.39 µm, 6.09 × 3.57 µm, 7.63 × 4.08 µm, 6.80 × 3.91 µm, 5.92 × 3.28 µm, 6.63 × 4.16 µm, 5.83 × 3.59 µm, 7.49 × 3.85 µm, 6.54 × 4.24 µm

KOH positive - amber on cap and orange/yellow on flesh

Iron salt gray-blue on flesh

NOT bruising or oxidizing blue when handled or sliced.

Probably same species as https://www.inaturalist.org/observations/177386794