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Usnea is a
genus of
fruticose lichens in the
large family Parmeliaceae. The genus,
which currently contains roughly 130 species, was
established by Michel...
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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...
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Usnea is a
species of
beard lichen in the
family Parmeliaceae. It was
described as a new
species in 1925 by
Finnish lichenologist Edvard August Vainio...
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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 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 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 scabrida is a
foliose lichen that
grows from
holdfasts on trees. It
occurs in
southwest Western Australia. It is a very pale grayish-yellowish green...
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Usnea patriciana is a rare
species of
fruticose lichen in the
family Parmeliaceae. It is
endemic to the Galápagos Islands. This
beard lichen has a shrubby...
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Usnea mayrhoferi is a
species of
fruticose lichen in the
family Parmeliaceae. It is
found in the Galápagos Islands.
Usnea mayrhoferi was
first formally...
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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...
