<i>Cladonia pyxidata</i>and<i>C. pocillum</i>; genetic evidence to regard them as conspecific
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Species delimitation in lichen-forming fungi has been based largely on morphological differences of fungal structures and the lichen thallus with an assumption that morphology reflects hereditary changes. One of the distinguishing features between Cladonia pyxidata and C. pocillum (Cladoniaceae, Ascomycotina) is the shape of the primary squamules. Because these species may inhabit different types of soil the phylogeny of these species was examined in light of potential environmental influences from soil pH and photobiont. Samples were collected across North America, and soil pH was measured for a subset of samples. The nuclear ribosomal internal transcribed spacer of 49 fungal and 14 algal partners and a portion of the polyketide synthase gene of 18 fungi was sequenced and analyzed by phylogenetic methods. Restriction fragment length polymorphism (RFLP) profiles for 129 algae were examined for geographic variation and fungal specificity. Cladonia pyxidata and C. pocillum are not monophyletic but results show seven highly supported lineages. The photobiont and geographic distribution do not play a role in species delimitation. Soil pH shows a statistically significant difference between the extreme morphologies of the two species suggesting a possible link between morphology and environmental conditions.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.002 |
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 it