I’ve never seen it growing along the leaf venation like this before, and wonder if more nutrients are available in these areas for their ability to hold water and sediment.
It reminds me of an experiment in which oats (a favorite slime mold food) were oriented to resemble the way cities are scattered around Tokyo. The slime mold’s path to consuming the oats was refined in a matter of hours to bear a strong resemblance the Tokyo public transit system.
https://www.wired.com/…/slime-mold-grows-network-just-like…/
