Lichens on a branch

Bark with lichen growing on it. Try in black.
Lichen is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.

[Milanie]

Looks nice on black

[Mags]

Lovely textures!

[Shutterbug]

Wonderful relationship. Love the art of lichen on rocks and trunks.

[Beth]

Nice texture and colored lichens.