pycnoporus's Identifications

Spores:
(3.1)3.3-3.9(4.1)x(2.1)2.2-2.6(2.7)um
Q=(1.2)1.3-1.6(1.9) ; N=30
Me=3.6x2.4um ; Qe=1.5
Ellipsoid, smooth, amyloid.
Print: White
Basida: Clavate 4 sterigmate.
Cheilocystidia: Abundant, clavate/subclavate/cylindric.
Pleurocysidia: Not found.
Pileipellis: A trichoderm.
Clamp connections: Present on all aspects
KOH: Negative to olive green.
Odor and taste: Non distinctive.
Habitat: Growing off a decayed stump( suspected Populus sp.) in a conifer, hardwood mixed forest.

Growing scattered in mulch. Fragile veil present in young basidiocarps. Stems rooting. Sclerotia present. Spore print purple-brown.

—

Originally posted to Mushroom Observer on Oct. 20, 2021.

6 fruiting bodies growing in a mulch bed. Stems rooting. Sclerotia, if present, were not collected. Partial veil present, leaving a thin purple-brown ring on 1 fruiting body. Chrysocystidia present. Basidia 4-sterigmate. Basidia measurements from Piximetre: 28.1 – 32.45 (32.5) × (6.9) 6.91 – 7.9 µm, Q = 3.8 – 4.3; N = 4, Me = 30 × 7.5 µm; Qe = 4

Individual basidia: 32.45 × 7.85 µm, 29.80 × 7.90 µm, 29.85 × 6.91 µm, 28.07 × 7.17 µm

Spores thick-walled with a prominent apical pore. Spore measurements from Piximetre: (8.1) 8.4 – 10.3 (10.7) × (4.8) 5 – 5.8 (5.9) µm, Q = (1.4) 1.6 – 1.9 (2); N = 30, Me = 9.4 × 5.4 µm; Qe = 1.7

Individual spores: 8.92 × 5.40 µm, 10.68 × 5.88 µm, 9.18 × 5.24 µm, 10.01 × 5.77 µm, 9.79 × 5.33 µm, 10.33 × 5.31 µm, 10.36 × 5.50 µm, 10.05 × 5.59 µm, 9.71 × 5.79 µm, 9.41 × 4.92 µm, 8.48 × 5.03 µm, 10.32 × 5.47 µm, 10.35 × 5.77 µm, 9.37 × 5.94 µm, 9.18 × 5.27 µm, 9.14 × 5.46 µm, 8.36 × 5.48 µm, 8.89 × 4.78 µm, 9.01 × 5.69 µm, 9.28 × 4.96 µm, 8.50 × 4.98 µm, 8.14 × 5.09 µm, 9.92 × 5.50 µm, 10.26 × 5.02 µm, 10.36 × 5.36 µm, 8.34 × 5.17 µm, 9.71 × 5.51 µm, 9.11 × 5.73 µm, 8.06 × 5.60 µm, 9.57 × 5.45 µm