<i>Rhytimenia,</i>a new genus of red algae based on the rare<i>Kallymenia maculata</i>(Kallymeniaceae, Rhodophyta)
Bibliographic record
Abstract
:Morphological and molecular analyses of newly collected samples of the rare Kallymenia maculata, described originally from specimens collected during the Siboga Expedition but never recollected, indicated that the species was incorrectly placed in the genus Kallymenia and did not conform to any existing genera. The new genus Rhytimenia is described to accommodate this species, distinguished morphologically by its gelatinous, bullate thallus; angular (in surface view) outer cortical cells; wholly filamentous medulla lacking ganglionic or refractive cells; and monocarpogonial branch system with spherical subsidiary cells. The autonomy of Rhytimenia was supported by molecular analyses (COI-5P, nuclear ribosomal large subunit gene, rbcL) that resolved K. maculata as only distantly allied to other Kallymeniaceae and clearly incorrectly assigned to Kallymenia based on the position of the generitype Kallymenia reniformis. A second species, Rhytimenia cerebriformis (basionym Sebdenia cerebriformis), was included in the new genus based on molecular analyses and morphological similarities with Rhytimenia maculata but differing in the presence of multiple marginal cartilaginous holdfasts.
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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 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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".