Zonal thermogenetic dynamics of two species of Philodendron from two different subgenera (Araceae)
Bibliographic record
Abstract
Spadix temperature was measured in two species of Philodendron: P. melinonii (subgenus Philodendron) and P. solimoesense (subgenus Meconostigma). For each species, the temperature of the male zone, the sterile male zone and the female zone of the spadix were recorded. In both species, the temperature of the male zone warmed up at the beginning of each of the two flowering nights. In P. melinonii, the temperature of the male sterile zone increased the first day but remained not significantly different from that of the ambient air during the second day. The temperature of the male zone warmed up slightly on the second day. In P. melinonii, the temperature of the three zones was not significantly different from that of the ambient air between the two peaks. In P. solimoesense, the temperature of the male zone and sterile zone rose to above that of the ambient air during the first night and then progressively cooled down but remained 3–6°C above the ambient air temperature until the second peak. In both species the temperature of the female zones remained more or less constant during the entire flowering cycle, very close to the temperature of the ambient air. We suggest that the heat production and the spadix temperature patterns observed may reflect a general physiological process common to all species of Philodendron. The biphasic pattern present in the subgenus Meconostigma can be seen as a variant of the ‘two peaks’ pattern, occurring in the subgenus Philodendron, with a ‘plateau’ phase between them. The comparison of the different thermogenic cycles occurring in Philodendron, Arum and Dracunculus seems to indicate some clear evolutionary trends.
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How this classification was reachedexpand
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 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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 teacher head, 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".