Usnea filipendula

Usnea filipendula (fishbone beard lichen) is a pale gray-green fruticose lichen with a pendant growth form, growing in up to 20 cm many-branching tassels hanging from the bark of trees.[2] In California, it mostly grows on mostly conifer in the Coast Range, but also in the western slopes of the Sierra Nevada range.[2]:206 It lacks apothecia.[2] It is similar to Usnea scabrata, but is darker, has a thicker cortex, and different chemistry.[2] Lichen spot tests are K+ red, KC-, C-, and P+ yellow.[2]

Fishbone beard lichen
Scientific classification
Kingdom:
Fungi
Division:
Ascomycota
Class:
Lecanoromycetes
Order:
Lecanorales
Family:
Parmeliaceae
Genus:
Usnea
Species:
U. filipendula
Binomial name
Usnea filipendula
Stirt. (1881)
Synonyms[1]
  • Usnea dasopoga var. fibrillosa (Motyka) Keissl. (1960)
  • Usnea fibrillosa Motyka (1936)
  • Usnea muricata Motyka (1936)

References
  1. "Synonymy: Usnea filipendula Stirt". Species Fungorum. CAB International. Retrieved 2014-10-04.
  2. Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2


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