Definition that contains alecto
- horsehair lichen any of several lichens of the genus Alectoria having a thallus consisting of filaments resembling hair
- horsetail lichen any of several lichens of the genus Alectoria having a thallus consisting of filaments resembling hair
- usneaceae fruticose lichens having prostrate or erect or pendulous thalli: genera Usnea, Evernia, Ramalina, Alectoria
- family usneaceae fruticose lichens having prostrate or erect or pendulous thalli: genera Usnea, Evernia, Ramalina, Alectoria