Morphological and molecular evidence supports the recognition of a new subspecies of the critically endangered Pityrodia scabra (Lamiaceae)
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
Taxonomic delineation of closely related taxa can be difficult, particularly in regions such as southern Western Australia where a highly diverse flora exhibits complex patterns of subtle morphological variation and genetic structuring and where some taxa have highly disjunct populations. A combined approach utilising highly variable, non-coding chloroplast gene regions and morphological data is used here to help delimit cryptic taxa in the rare Western Australian species Pityrodia scabra A.S.George. The species comprises disjunct populations over 400 km of the Western Australian wheatbelt from near Wyalkatchem, Southern Cross and Lake Lefroy. Morphological features such as leaf phyllotaxy, calyx size and indumentum vary among the populations and provide some evidence for cryptic taxa. Phylogenetic analyses based on cpDNA psbA–trnH and psbD–trnT and nuclear external transcribed spacer (ETS) sequences revealed genetic distinctiveness between the Wyalkatchem (type) population and the Southern Cross and Lake Lefroy populations. This evidence, when used in conjunction with the morphological differences, provides support for the recognition of the new subspecies described herein as Pityrodia scabra subsp. dendrotricha K.A.Sheph. subsp. nov. This new subspecies is of conservation concern because it is currently known only from a few, isolated populations; the typical subspecies remains Critically Endangered because it comprises one extant population. A description of both subspecies, a key and images are provided.
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 | 0.000 |
| 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) | 0.000 | 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 it