Usnea
Usnea is a genus of mostly pale grayish-green fruticose lichens that grow like leafless mini-shrubs or tassels anchored on bark or twigs.: 203 The genus is in the family Parmeliaceae. It grows all over the world. Members of the genus are commonly called old man's beard, beard lichen, or beard moss.: 203
| Usnea | |
|---|---|
| Usnea cavernosa | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Parmeliaceae |
| Genus: | Usnea Dill. ex. Adans. (1763) |
| Type species | |
| Usnea florida | |
| Species | |
|
See text | |
| Synonyms | |
Members of the genus are similar to those of the genus Alectoria.: 148 A distinguishing test is that the branches of Usnea are somewhat elastic, but the branches of Alectoria snap cleanly off.: 148
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