Phylogenetic relationships of five genera of Xylariales and Rosasphaeria gen. nov. (Hypocreales)
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Bibliographic record
Abstract
Eight inconspicuous non-stromatic perithecial fungi immersed in plant tissue are assessed with respect to their morphology, ecology and phylogenetic position. Emphasis is laid on two genera now and then placed in the family Hyponectriaceae, Xylariales: Leiosphaerella with its type species L. praeclara occurring on Vaccinium, and Pseudomassaria with its type species P. chondrospora occurring on Tilia. In molecular phylogenetic analyses of LSU and ITS sequences, the generic types of these genera are closely related, but their familial affiliation within Xylariales remains unresolved. Pseudomassaria sepincoliformis clusters with P. chondrospora, whereas P. fallax is not congeneric with Pseudomassaria and P. lycopodina is combined in Leiosphaerella despite its apiospores. Three species thought to belong to Leiosphaerella are re-assessed: L. moravica that occurs on Rosa, is disposed in the new genus Rosasphaeria, which is close to Eucasphaeria in the Niessliaceae (Hypocreales), according to multi-gene phylogenetic analyses (ITS, LSU, rpb2 and tef1). For L. vexata the genus Pseudomassariella is revived. A Leiosphaerella-like fungus on Lycopodium is described as the new species Monographella lycopodina. In addition the phylogenetic relationships of two fungi forming superficial stromata are here clarified: Collodiscula japonica belongs to the Xylariaceae, while Melogramma campylosporum may currently be interpreted as representing a family of its own, the Melogrammataceae.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 it