Parmotrema robustum is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae.[2] It can be identified by its thin, leaf-like thallus, few (or sometimes no) tiny hair-like structures (cilia) on the edges, short lobes with powdery edges, and a black underside with few root-like structures (rhizines), along with a wide brown area without these structures. It produces specific secondary metabolites (lichen products), including protocetraric acid and atranorin, and sometimes usnic and fatty acids.[3]
| Parmotrema robustum | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Parmeliaceae |
| Genus: | Parmotrema |
| Species: | P. robustum
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| Binomial name | |
| Parmotrema robustum | |
| Synonyms[1] | |
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The species was first scientifically described by the Swedish lichenologist Gunnar Degelius in 1941.[4] He classified it in the genus Parmelia. Mason Hale transferred it to the then newly circumscribed genus Parmotrema in 1974.[5]
Parmotrema robustum has a widespread distribution, with reports from Europe, eastern Australia, New Zealand, India, Thailand, Papua New Guinea, Macaronesia, and the Neotropics, including Bolivia, Brazil, Colombia, Costa Rica, Ecuador, and Venezuela.[3]
See also
editReferences
edit- ^ "Synonymy. Current Name: Parmotrema robustum (Degel.) Hale, Phytologia 28(4): 338 (1974)". Species Fungorum. Retrieved 9 July 2024.
- ^ "Parmotrema robustum (Degel.) Hale". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 9 July 2024.
- ^ a b Kukwa, Martin; Back, Kerstin; Sipman, Harrie J.M.; Flakus, Adam (2012). "Thirty-six species of the lichen genus Parmotrema (Lecanorales, Ascomycota) new to Bolivia". Polish Botanical Journal. 57 (1): 243–257.
- ^ Degelius, G. (1941). "Lichens from the Azores, mainly collected by Dr. H. Persson". Göteborgs Kungliche Vetenskaps- och Vitterhets Samhälles Handlingar. 6B. 1 (7): 1–46 [33].
- ^ Hale, Mason E. (1974). "New combinations in the lichen genus Parmotrema Massalongo". Phytologia. 28 (4): 334–339.
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