Search results
Results From The WOW.Com Content Network
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 sphacelata is a species of saxicolous (rock-dwelling), fruticose lichen in the large family Parmeliaceae. It is found in both polar regions of Earth , as well as in southern and northern South America and in New Zealand.
Usnea hirta is a species of beard lichen in the family Parmeliaceae. It was one of 80 lichen species first formally described by Carl Linnaeus in his 1753 work Species Plantarum . Friedrich Heinrich Wiggers transferred it to the genus Usnea in 1780. [ 2 ]
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 trichodea, commonly known as bony beard lichen, [1] is a pale straw-colored fruticose lichen with a pendant growth form. It grows on trees and is native to eastern North America. It grows on trees and is native to eastern North America.
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 Europe, Eastern Asia, and North Africa. This fruticose species forms hair-like hanging clusters that are orange to red in color.
Usnea pallidocarpa is characterised by its shrubby, erect appearance and a thallus (the body of the lichen) that typically measures between 5 and 7 cm in length. This lichen originates from a holdfast, which is the anchoring part of the lichen, appearing either unpigmented or with a brownish hue.
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]