fungus family - includes lichen families

division Lichenes - comprising the lichens which grow symbiotically with algae; sometimes treated as an independent group more or less coordinate with algae and fungi

genus Usnea, Usnea - widely distributed lichens usually having a greyish or yellow pendulous freely branched thallus

Evernia, genus Evernia - lichens of the family Usneaceae having a pendulous or shrubby thallus

genus Ramalina, Ramalina - shrubby lichens of the family Usneaceae having a flattened thallus

Alectoria, genus Alectoria - lichens having dark brown erect or pendulous much-branched cylindrical thallus