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Cetraria laevigata is a species of ground-dwelling, fruticose (bushy) lichen in the family Parmeliaceae. It was formally described as a new species by Russian lichenologist Kseniya Aleksandrovna Rassadina in 1943. In North America, it is commonly known as the striped Iceland lichen. [1]
Sporodophoron americanum is a rare species of corticolous (bark-dwelling), crustose lichen in the family Arthoniaceae. [3] Found in northeastern North America, it was formally described as a new species in 2013 by the lichenologists James Lendemer, Erin Tripp, and Richard C.Harris. [4]
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.
It was in 1869 that Simon Schwendener demonstrated that all lichens were the result of fungal attack on the cells of algal cells and that all these algae also exist free in nature. This researcher was the first to recognise the dual nature of lichens as a result of the capture of the algal component by the fungal component. [ 19 ]
Phaeophyscia was circumscribed by the Swedish lichenologist Roland Moberg in 1977, separating it from the older genus Physcia.The key distinction of this new genus lay in its chemical composition: unlike Physcia, Phaeophyscia lacks the substance atranorin in its outer protective layer (cortex) and produces ellipsoidal conidia (asexual reproductive cells).
Peltigera is a genus of approximately 100 species of foliose lichens in the family Peltigeraceae. [2] Commonly known as the dog or pelt lichens, species of Peltigera are often terricolous (growing on soil), but can also occur on moss, trees, rocks, and many other substrates in many parts of the world.
Fuscopannaria lichens have a squamulose (scaly) or crustose (crust-like) growth form. The lower surface is often attached to the substrate by a dark blue to blue-black hypothallus, a mat of fungal filaments that may be visible between the individual scales of the thallus. The upper surface varies in colour, ranging from bluish-grey to olive or ...
Usnea articulata, commonly known as the string-of-sausage lichen, [1] is a pale greenish-grey, densely branched lichen with a prostrate or pendant growth form. It grows on bark, on branches and twigs, and is often unattached to a branch and merely draped over it. It grows up to 100 cm (40 in) in length. [1]