Observation 308761: Coniophora arida (Fr.) P. Karst.

When: 2016-11-04

Collection location: Columbus, Ohio, USA [Click for map]

40.1223°N 83.0216°W

Who: Django Grootmyers (heelsplitter)

Specimen available

Notes:
Growing on a cut Pinus log. Spores yellowish brown in water, smooth and thick-walled, seemed to be dextrinoid. Other structures inamyloid. Basidia 4-sterigmate. Monomitic. Hyphae simple-septate and varying widely in width. Could not find unambiguous cystidia. Spore measurements from Piximetre: (11.4) 12 – 14.7 (15.8) × (6.5) 6.7 – 7.7 (8.1) µm, Q = 1.7 – 2 (2.1); N = 20, Me = 13.3 × 7.2 µm; Qe = 1.9
Individual spores: 11.97 × 7.12 µm, 14.08 × 7.61 µm, 15.77 × 8.13 µm, 11.36 × 6.67 µm, 13.15 × 7.54 µm, 12.64 × 6.87 µm, 13.39 × 7.16 µm, 12.65 × 6.67 µm, 14.78 × 7.43 µm, 13.44 × 7.69 µm, 12.30 × 6.56 µm, 14.50 × 6.82 µm, 12.54 × 6.48 µm, 11.89 × 6.81 µm, 12.71 × 6.95 µm, 12.83 × 6.99 µm, 13.42 × 8.09 µm, 14.74 × 7.21 µm, 14.53 × 7.40 µm, 12.53 × 6.86 µm

Species Lists

Images

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Spores at 400x in water
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Cross section at 100x in Melzer’s
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Basidia and spores at 400x in Melzer’s
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Crush mount showing basidia and spores at 400x in NH4OH (2 drops), phloxine (1 drop) and congo red (1 drop)
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Crush mount showing hyphae at 400x in NH4OH (2 drops), phloxine (1 drop) and congo red (1 drop)

Proposed Names

57% (1)
Used references: Julich, W., & Stalpers, J. A. (1980). The resupinate non-poroid Aphyllophorales of the temperate northern hemisphere. North-Holland Publishing Company.
Bernicchia, A., & Gorjón, S. P. (2010). Corticiaceae sl Cadusso.
Based on microscopic features: Spore yellowish-brown, thick walled and dextrinoid; hyphae simple septate; basidia 4-sterigmate; monomitic

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= Observer’s choice
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Created: 2018-02-13 00:14:36 PST (-0800)
Last modified: 2018-02-13 00:14:43 PST (-0800)
Viewed: 21 times, last viewed: 2018-12-18 12:06:01 PST (-0800)
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