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Usnea strigosa has worldwide distribution. It is a common tree lichen in Eastern and Southeastern North America. It is a common tree lichen in Eastern and Southeastern North America. [ 1 ] [ 2 ]
Usnea is a genus of fruticose lichens in the large family Parmeliaceae. The genus, which currently contains roughly 130 species, was established by Michel Adanson in 1763. Species in the genus grow like leafless mini- shrubs or tassels anchored on bark or twigs.
Usnea glabrescens is a species of beard lichen in the family Parmeliaceae. It grows on bark , has a shrubby thallus with a blackened base, and a thick cortex . Several chemotypes of this species have been reported.
During the studied austral summer period, the lichen was only physiologically active for about 27% of the time, primarily when moistened by snow, producing approximately 3.44 g carbon per square meter. This productivity is significantly lower than laboratory studies had suggested, highlighting the challenges of survival in the Antarctic ...
The lichen was described as new to science in 2011 by the lichenologists Camille Truong and Philippe Clerc. The type specimen was collected by the authors from San Cristóbal Island . The lichen was found in the transition zone at Cerro Mundo, near the summit at an elevation of 282 m (925 ft).
Usnea scabrida is a foliose lichen that grows from holdfasts on trees. [1] [2] It occurs in southwest Western Australia. [3] It is a very pale grayish-yellowish green, slender, pendant, branching from the base, unequally branching, and shrubby. [3] The cortex contains usnic acid, and the medulla contains scabrosins. [4]
Usnea rubicunda, commonly known as the red beard lichen, is a type of arboreal lichen native to temperate regions in North, Central and South America, as well as ...
Usnea lambii is a small species of fruticose lichen in the family Parmeliaceae. [2] It was first formally described as a new species in 1954 by Henry Imshaug . It has a bipolar distribution, that is, it occurs at both of Earth's polar regions .