Morphometric Analyses and Taxonomic Revision of the North American Holoparasitic Genus <I>Conopholis</I> (Orobanchaceae)
Bibliographic record
Abstract
Abstract Members of the small genus Conopholis are perennial holoparasites. They are found growing in eastern and southwestern North America and in Central America, where they attach to the roots of their oak hosts. Two species were recognized in the last taxonomic revision of the group based on geographic range and differences in floral, capsule, and bract morphology. Due to the overlapping nature of the characters used to distinguish between taxa, no single morphological feature can be relied on to differentiate between the species. A recent molecular phylogenetic study of the genus recovered three well-supported lineages, none of which corresponds entirely to the current subdivision of the genus into two species. We undertook a fine-scale morphometric study of the genus, emphasizing calyx and bract morphology. Unweighted pair-group method using arithmetic averages and principal coordinate analyses corroborate molecular data and strongly support the distinction of three separate lineages within Conopholis. A taxonomic re-alignment is proposed for the genus including three species, C. americana, C. panamensis, and C. alpina, each with various degrees of overlap with previously described taxa.
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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 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".