You may have heard of pyrophites : They are plants which have a strong relationship to fire, whether they are extremely resilient to it, blossoming with it or simply as a way for their seeds to sprout.
I am devising such a plant that has an aggressive way of expanding, burning their surroundings to ensure they will get light, and maybe even retrieve specific resources from the cinders. Kindikinda like Slash-and-burn agriculture, without the slash part. This plant would emit slow-falling spores or seeds, very hot to the touch, and which may be even in flames as it lands on the ground.
For that purpose, I would like to know if such seeds could exist? The seed can be any shape and material you can imagine, as well as the type of plant producing it (tree, bush, grass, mushroom...). However, I'd very like it to respect physics, and to be based on concepts close (though not necesarily the same) to real world biology and chemical equivalents. Still, I won't be sad if you don't bring up scientific documents and calculations to support your solution (unless it's extraordinary, of course).
To help you, below are specific goals I wish to reach.
- The seed, at its landing, should make at least dry grass burn. Ideally, this should be doable on wet grass or other plants. Therefore, they should be also quite hot.
- Keep a hot temperature at the touch if you catch it during its flight. At the very least warm, but I'd rather have something uncomfortable to keep in your bare hands or even dangerous to hold.
- [Secondary] Produces itself (or through the plant) the heat that makes it feel hot.
- Be able to fly/glide on its own to reach new places to grow and to avoid annoying its parent. So pretty far away, and high enough. There can be winds, and even a strong upwind coming from fire around the plant to give them a head start.
- Be strongly resilient to a continuous, high-temperature during its lifetime. The seed must sprout one time or another :).
- Small-sized OR very slow falling basketball-sized fruit ones : Being small gives the seeds many more uses, and it would be so nice to have raining fire seedflakes ^^. But, I also had the idea of making them bigger sized, burning jellyfish or floating chinese lamp-like fruits. Nothing really between the two, however.
- [Secondary] The seed can start a flame on its own through a sun-independent mechanism. Some pyrophites are naturally prone in making fire through sunlight and inflammable oil production, but maybe this can be automated without the sun's help?
- [Secondary] Be able to keep a flame during the travel. That is, find ways to have a flame persist, like a candle last longer than a match. The longer it can keep it, the better.
Note that I tagged some objectives with "[Secondary]" : If you can't reach that goal from a scientific approach, then simply waive it away telling that you haven't managed to make it (that's okay! I can understand ;)). Then continue on, supposing this goal is reached through magical or other unknown means or is simply isn't part of the solution. Still, the more goals you can complete and include at once, the better it is!