Myelorrhiza

Myelorrhiza is a genus of two Australian species of lichen-forming fungi in the family Ramalinaceae. These lichens form leaf-like growths with narrow, overlapping lobes that attach to their substrate using root-like strands called rhizines. They are found in tropical rainforests of northern Queensland, where they grow on tree bark and rocks. The genus was initially thought to belong to the family Cladoniaceae, but molecular studies placed it outside Cladoniaceae and aligned it with ramalinoid lineages; it is now treated in Ramalinaceae.