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nounwidely distributed lichens usually having a greyish or yellow pendulous freely branched thallus
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Definition that contains usnea
- evernia lichens of the family Usneaceae having a pendulous or shrubby thallus
- ramalina shrubby lichens of the family Usneaceae having a flattened thallus
- family usneaceae fruticose lichens having prostrate or erect or pendulous thalli: genera Usnea, Evernia, Ramalina, Alectoria
- usneaceae fruticose lichens having prostrate or erect or pendulous thalli: genera Usnea, Evernia, Ramalina, Alectoria
- genus evernia lichens of the family Usneaceae having a pendulous or shrubby thallus
- genus ramalina shrubby lichens of the family Usneaceae having a flattened thallus