A revision of the genus Tomentypnum (Amblystegiaceae) in northern Eurasia
Bibliographic record
Abstract
A combined molecular phylogenetic and morphological analysis revealed four species in the genus Tomentypnum. In addition to the commonly accepted widespread T. nitens and North American T. falcifolium, a strong genetic isolation is shown for two taxa. Tomentypnum involutum is elevated from variety to species status; it is widely distributed in permafrost areas in Siberia, the islands of the Arctic Ocean, high mountains in Scandinavia, and is known from the Rocky Mountains of Canada and from Greenland. Tomentypnum vittii is described as a new species for eastern Asia and Siberia, in China and Russia previously referred to T. falcifolium. Descriptions, illustrations, a key for identification, and a map for the Eurasian distributions are provided. Tomentypnum nitens is represented by four groups of haplotypes, which lack morphological distinction, and are therefore referred to one species. However, the distributions of the haplotype groups are revealing; some are more confined to mires rich in relic species composition, whereas others are more widely distributed and partly seem to occur in recently recolonized sites. Different distribution patterns in densely sampled Sweden suggest different glacial and postglacial histories.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 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 | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".