Notes:
Found by someone else on a group foray. Did not bruise noticeably. Oleiferous hyphae present in the lamellar trama. Cheilocystidia subcapitate. Basidia 4-sterigmate. Spores brown thick-walled, limoniform and roughened. Spore measurements: (6.4) 6.7 – 8 (8.2) × (4.3) 4.5 – 5.2 (5.6) µm, Q = (1.3) 1.4 – 1.6 (1.7); N = 30, Me = 7.3 × 4.9 µm; Qe = 1.5

Species Lists

Images

DSC_9552 edit.JPG
DSC_9553 edit.JPG
DSC_9554 edit.JPG
DSC_5191 Basidia and spores at 400x in Melzer's.JPG
DSC_5200 Basidia and spores at 400x in Melzer's.JPG
DSC_5201 Cheilocystidia and spores at 400x in Melzer's.JPG
DSC_5203 Oleiferous hyphae and spores at 400x in Melzer's.JPG
DSC_5204 Basidia and spores at 400x in Melzer's.JPG

Proposed Names

85% (3)
Recognized by sight: Slightly enlarged at the base, not growing in a tight cluster, sequence matches other G. luteus collections.

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Comments

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Also matches sequences here:
By: Django Grootmyers (Heelsplitter)
2020-04-28 20:21:29 CDT (-0400)

Thorn, R. G., Malloch, D. W., Saar, I., Lamoureux, Y., Nagasawa, E., Redhead, S. A., … & Moncalvo, J. M. (2020). New species in the Gymnopilus junonius group (Basidiomycota: Agaricales). Botany, 98(999), 293-315.

Hesler, L. R. (1969). North American species of Gymnopilus.
By: Django Grootmyers (Heelsplitter)
2019-11-28 20:04:28 CST (-0500)

Keyed it out here. Best match microscopically as well.