Biology:Usnea vainioi
| Usnea vainioi | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Parmeliaceae |
| Genus: | Usnea |
| Species: | U. vainioi
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| Binomial name | |
| Usnea vainioi Motyka (1936)
| |
Usnea vainioi is a rare species of beard lichen in the family Parmeliaceae found in the southeastern United States. It was described as a new species in 1936 by Polish lichenologist Józef Motyka.[1] The specific epithet honours Finnish lichenologist Edvard August Vainio.[2] The lichen contains (in addition to usnic acid) diffractaic acid as the main secondary compound.[3]
Usnea vainioi grows in clusters or tufts, sometimes hanging from its substrate by a single holdfast, and is up to 12 cm (4.7 in) long. Its lateral branches are up to 8 cm (3.1 in) long, although they more typically are in the range 3 to 5 cm (1.2 to 2.0 in). The cortex is green, while the medulla, which has a central cavity, is more variable in color – typically red and white with tinges of yellow.[4]
Because the type collection of Usnea vainioi was a mixed collection containing thalli both with and without soredia, a sorediate thallus was selected as the lectotype of the species by Roderick Rogers and G. Nell Stevens in a 1988 publication.[3]
References
- ↑ Motyka, Józef (1936) (in la). Lichenum generis Usnea studium monographicum. 1. Leopoli. pp. 51, 67.
- ↑ Hertel, Hannes; Gärtner, Georg; Lőkös, László (2017). "Forscher an Österreichs Flechtenflora" (in de). Stapfia 104 (2): 156–157. ISSN 0252-192X. https://www.zobodat.at/biografien/Flechtenforschung_Austria_STAPFIA_0104_2_0001-0211.pdf.
- ↑ 3.0 3.1 Rogers, R.W.; Stevens, G.N. (1988). "The Usnea baileyi complex (Parmeliaceae, Lichenised Ascomycetes) in Australia". Australian Systematic Botany 1 (4): 355–361. doi:10.1071/SB9880355.
- ↑ Moore, Barbara Jo (1968). "The macrolichen flora of Florida". The Bryologist 71 (3): 243. doi:10.2307/3240692.
Wikidata ☰ Q21303503 entry
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