# Protousnea

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***Protousnea*** is a [genus](/source/Genus) of [lichenised](/source/Lichen) [ascomycetes](/source/Ascomycete) in the large family [Parmeliaceae](/source/Parmeliaceae). It contains two accepted species. *Protousnea* species have a [fruticose](/source/Fruticose_lichen) growth form, similar to [beard lichens](/source/Beard_lichen) (genus *Usnea*). The genus is [endemic](/source/Endemism) to southern South America.[1] The genus was [circumscribed](/source/Circumscription_(taxonomy)) in 1976 by [Hildur Krog](/source/Hildur_Krog) as a segregate genus from *[Usnea](/source/Usnea)*.[2]

## Species

- *[Protousnea fibrillatae](/source/Protousnea_fibrillatae)* Calvelo, Stock.-Wörg., Liber. & Elix (2003)[1]
- *[Protousnea magellanica](/source/Protousnea_magellanica)* (Mont.) Krog (1976)[2]

## References

1. Calvelo, Susana; Stocker-Wörgötter, Elfie; Liberatore, Sandra; Elix, John A. (2003). "*Protousnea* (Parmeliaceae, Ascomycota), a genus endemic to southern South America". *The Bryologist*. **108** (1): 1–15. [doi:10.1639/0007-2745(2005)108\[1:PPAAGE](https://doi.org/10.1639/0007-2745(2005)108%5B1:PPAAGE%5D2.0.CO;2)2.0.CO;2]. [JSTOR 20061064](https://www.jstor.org/stable/20061064). [S2CID 85909019](https://api.semanticscholar.org/CorpusID:85909019)

1. Krog, H. (1976). "*Lethariella* new genus and *Protousnea* new genus 2 new lichen genera in Parmeliaceae". *Norwegian Journal of Botany*. **23** (2): 83–106.

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