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Usnea is a
genus of
mostly pale grayish-green
fruticose lichens that grow like
leafless mini-shrubs or t****els anc****d on bark or twigs.: 203 The genus...
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Usnea filipendula, the
fishbone beard lichen, is a pale gray-green
fruticose lichen with a
pendant growth form,
growing in up to 20 cm many-branching...
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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...
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Usnea scabrata, the
straw beard lichen, is a pale grayish-yellowish green, slender, pendant,
branching from the base,
unequally branching,
shrubby fruticose...
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Dolichousnea longissima (syn.
Usnea longissima),
commonly known by the
names old man's
beard or Methuselah's
beard lichen, is a
fruticose lichen in the...
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Usnea strigosa,
commonly known as
bushy beard lichen, is a
fruticose lichen in the
family Parmeliaceae.
Usnea strigosa has
worldwide distribution. It...
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Usnea leana is a
species of
fruticose lichen in the
family Parmeliaceae.
Found in the Galápagos Islands, it
characterized by its
pendulous thallus, branches...
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Usnea Ridge (60°42′S 45°38′W / 60.700°S 45.633°W / -60.700; -45.633) is a
ridge at an
elevation of 100–160 m,
extending north-northwest from Jane Peak...
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Usnea galapagona is a
species of
beard lichen in the
family Parmeliaceae. It is
endemic to the Galápagos Islands. The
lichen is
easily recognized by its...
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Usnea lambii is a
small species of
fruticose lichen in the
family Parmeliaceae. It was
first formally described as a new
species in 1954 by
Henry Imshaug...
