A new checklist of the mosses of the continental United States and Canada1
Bibliographic record
Abstract
The checklist includes a listing of the genera and species of North American Bryophyta thought to occur in the continental United States and Canada.The floras of Mexico, Hawaii and Greenland are not included.The current list recognizes 1565 species, 12 subspecies, 34 varieties and one form (for a total of 1612 taxa) in 366 genera and 100 families.As a preface to the list, a systematic arrangement of the families and included genera for North America is presented.Many changes from the previous checklist are documented via footnotes that provide references to where changes were made.Only synonymy since the previous checklist is included.Twenty nomenclatural changes are made.These include 19 new combinations: Bryum brassicoides (º Gemmabryum brassicoides), B. pacificum (º Ptychostomum pacificum), B. torenii (º Imbribryum torenii), B. vinosum (º Gemmabryum vinosum), Chionoloma maragniphyllum (º Oxystegus maragniphyllus), Lescuraea tribulosa (º Pseudoleskea tribulosa), Pterygoneurum 3kieneri (º P. subsessile var.kieneri Habeeb), Pylaisiadelpha canadensis (º Brotherella canadensis), Streblotrichum convolutum var.eustegium (º Barbula eustegia), Streblotrichum convolutum var.gallinula (º Barbula convoluta var.gallinula), Voitia angustata (º Splachnum angustatum), V. mnioides (º Splachnum mnioides), V. pallida (º Tetraplodon pallidus), V. paradoxa (º Splachnum paradoxum), V. urceolata (º Splachnum urceolatum), Warnstorfia badia (º Hypnum badium), W. straminea (º Hypnum stramineum), W. straminea var.patens (Lindb.)(º Amblystegium stramineum var.patens), W. wickesiae (º Calliergon wickesiae).A new order is also introduced: Rhizogemmales W.R.Buck & Goffinet (º Rhizogemmaceae Bonfim Santos, Siebel & Fedosov).
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.013 | 0.015 |
| Science and technology studies | 0.005 | 0.001 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.021 | 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".