Myxarium spiniferum Spirin & V. Malysheva 2025, sp. nov.
Bibliographic record
Abstract
Myxarium spiniferum Spirin & V. Malysheva sp. nov. Fig. 9 E Holotype. Canada. Alberta: Edmonton, Louise McKinney Riverfront Park, Populus alba (rotten decorticated log), 28.VII.2015 Spirin 8986 * (H, isotype – LE). Etymology. Spiniferum (Lat., adj.) – bearing spines. Description. Basidiocarps effused, up to 3 cm in widest dimension, semitranslucent, gelatinous, whitish or greyish, adnate; hymenophore hydnoid, spines regularly arranged, acute, single or fasciculate, 0.1–0.6 mm long, 5–7 per mm; subiculum first watery greyish, semitranslucent, then whitish, opaque, 0.02–0.05 mm thick; margin gradually thinning-out. Hyphal structure monomitic, hyphae hyaline, clamped; subicular hyphae thin-walled, predominantly subparallel, 1–2 μm in diam., tramal hyphae subparallel, subhymenial hyphae ascending, very thin-walled, and quickly collapsing, (1.6 –) 1.9–3.0 (– 3.1) μm in diam. (n = 20 / 1). Acicular crystals quite rare, spread among hyphal tissues, often aggregated in large groups up to 20 μm in the widest dimension. Hyphidia occasionally present, simple to sparsely branched, 1–1.5 μm in diam. at the apical part, distributed among basidia. Basidia four-celled, longitudinally septate, broadly ellipsoid to subglobose, pedunculate, (6.0 –) 6.8–8.8 (– 9.2) × (5.3 –) 5.8–6.9 (– 7.0) μm (n = 20 / 1), partly glued together and often forming a continuous layer, stalk up to 8 × 2 μm, sterigmata up to 10 × 1.8–2.5 μm. Basidiospores cylindrical to broadly cylindrical, occasionally slightly curved, (4.1 –) 4.3–5.8 (– 5.9) × (2.3 –) 2.5–3.7 (– 3.8) μm (n = 90 / 3), L = 5.19–5.27, W = 2.98–3.13, Q’ = (1.4 –) 1.5–2.1 (– 2.2), Q = 1.70–1.75. Distribution and ecology. North America (Canada – Alberta, USA – New York, Tennessee); strongly decomposed wood of angiosperms. Remarks. Myxarium spiniferum is described here as the North American sibling species of M. legonii. Morphologically, it differs from the latter species in having smaller basidiospores. The photograph of M. legonii in Spirin et al. (2019 b) belongs to M. spiniferum.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.004 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".