Temperature Regulation by the Inflorescence of Philodendron

@article{Nagy1972TemperatureRB,
  title={Temperature Regulation by the Inflorescence of Philodendron},
  author={Kenneth A. Nagy and Daniel K. Odell and Roger S. Seymour},
  journal={Science},
  year={1972},
  volume={178},
  pages={1195 - 1197}
}
The inflorescence of Philodendron selloum temporarily maintains a core temperature of 38� to 46�C, despite air temperatures ranging from 4� to 39�C, by means of a variable metabolic rate. The heat is produced primarily by small, sterile male flowers that are capable of consuming oxygen at rates approaching those of flying hummingbirds and sphinx moths. 

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Thermogenic Patterns in Philodendron ornatum and P. grandifolium: A Comparative Analysis

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Respiration and heat production by the inflorescence of Philodendron selloum Koch

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Heat Production and Temperature Regulation in Eastern Skunk Cabbage

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  • R. Seymour
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    Bioscience reports
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The role of thermogenesis in the pollination biology of the Amazon waterlily Victoria amazonica.

Floral heating is not only associated with attraction, but continues throughout the night when beetles are active inside the flower and increases again when they leave, implying that thermogenesis is an energy reward.
...

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