Lichens (Various)
Cladonia rangiferina
Lichens are symbiotic organisms composed of a fungus (mycobiont) and an alga or cyanobacterium (photobiont) living together. Cladonia rangiferina, commonly known as Reindeer Lichen or Reindeer Moss, is one example of many lichen species that can be used in terrariums. Lichens are not true plants but