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Usnea strigosa, Bushy Beard Lichen, is a lichen in the family Parmeliaceae.
Contents
Distribution
U. strigosa has worldwide distribution. It is a common tree lichen in Eastern and Southeastern North America.
Description
This lichen is fruticose with 2 to 5 cm long branches and abundant terminal apothecia about 5 mm wide.
Taxonomy
U. strigosa has three recognized subspecies, major, rubiginea, and strigosa. There are also several chemotypes, bringing the current taxonomy into doubt.
Ecology
U. strigosa grows on trees. The most frequent hosts of this lichen are oak trees. The photosynthetic symbionts of Usnea species are Chlorophyta green algae.
References
Usnea strigosa Wikipedia(Text) CC BY-SA