The genus<i>Aitchisoniella</i>Kashyap (Marchantiopsida, Cleveaceae) new to China, and its taxonomic placement
Bibliographic record
Abstract
The genus Aitchisoniella with a single species A. himalayensis (Marchantiopsida, Cleveaceae), previously considered endemic to the north-west Himalayas of India, is reported for the first time from Sichuan Province, China. The genus is distinctive amongst complex thalloid liverworts in lacking stalked carpocephala but having archegonia and sporophytes borne on the ventral side of a short receptacle arising in a terminal thallus bifurcation. The receptacle tissue is continuous with that of the main thallus, with dorsal air chambers and air pores, and a ventral groove containing pegged rhizoids. Both molecular data and morphological characters, particularly spore ornamentation, suggest that its previous placement in Exormothecaceae is incorrect and it is now transferred to Cleveaceae, wherein it becomes the fifth genus. Revised descriptions of the families Cleveaceae and Corsiniaceae (including Exormothecaceae) are provided.
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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 | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".