Common, unsightly and until now undescribed: <i>Fumiglobus pieridicola</i> sp. nov., a sooty mold infesting <i>Pieris japonica</i> from western North America
Why this work is in the frame
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Bibliographic record
Abstract
Sooty molds (Capnodiaceae) are saprotrophs on the surfaces of leaves, and they take their nutrients from honeydew exuded by sap-sucking insects. We describe and illustrate the sooty mold Fumiglobus pieridicola sp. nov., which, to the dismay of gardeners, forms a thick black mycelial coating on the leaves and twigs of ornamental Japanese andromeda (Pieris japonica) in western North America. As a mitosporic species with a pycnidium that lacks an elongated neck and has at most a rudimentary stalk, the species belongs in the genus Fumiglobus. Although locally common, we found no specimens identified under Fumiglobus or its synonyms in regional herbaria and no record of any similar fungus in host indices. Our species differs from others in Fumiglobus in having smaller pycnidia and conidia and in having intercalary as well as apical pycnidia. We determined partial 18S and 28S ribosomal gene sequences for F. pieridicola, the first for any Fumiglobus species. Sequence analysis provides strong bootstrap support for including Fumiglobus within Capnodiaceae. We also determined 18S and 28S sequences for the type species of the mitosporic genus Conidiocarpus, also in Capnodiaceae. We confirm that Conidiocarpus is the anamorph of Phragmocapnias. Following the rules of nomenclatural priority, we propose the new combinations Conidiocarpus asiaticus, Conidiocarpus betle, Conidiocarpus callitris, Conidiocarpus fuliginodes, Conidiocarpus heliconiae, Conidiocarpus imperspicuus and Conidiocarpus siamensis. We hope that describing the mystery fungus from our region and providing sequences for its molecular identification will lead to new studies on its biology and distribution.
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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