Biology:Acarospora obnubila
| Acarospora obnubila | |
|---|---|
| |
| Closeup of fertile areoles at 30X magnification | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Acarosporales |
| Family: | Acarosporaceae |
| Genus: | Acarospora |
| Species: | A. obnubila
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| Binomial name | |
| Acarospora obnubila H.Magn. (1929)
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Acarospora obnubila ("cloudy cobblestone lichen") is a dull brown squamulose areolate crustose lichen that may grow up to 4 mm in diameter or with squamules scattered among other lichens.[1]:217[2] They are common in Arizona, southern California , and Baja California.[2] They grow by themselves on acidic rock in full sunlight.[2] Squamules measure up to 2 mm in diameter and are round to irregular, with have a stipe.[2][1]:217 They may also grow on members of the genus Aspicilia (lichenicolous).[2] Competition for space with other lichens stimulates longer stipes to develop, whereby the squamules may overlay other lichens.[2]
There are 0-16 apothecia per squamule, that may are pointlike (punctiform) with a reddish-brown round concave 0.1–0.3 mm disc that is deeply immersed in the thallus tissue.[2] In very high elevations, the apothecia may rise as warty (verrucae) structure with thallus-like tissue (pseudo-lecanorine ) collaring discs that may be up to 1 mm diameter, with only one per squamule.[2] Lichen spot tests are all negative, with no known secondary metabolites (as of 2014).[2] A. obnubila was first described scientifically by lichenologist Adolf Hugo Magnusson in 1929.[3]
References
- ↑ 1.0 1.1 Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN:978-0-300-19500-2
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Lichen Flora of the Greater Sonoran Desert Region. Vol 3., Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001, [1]
- ↑ Magnusson AH. (1929). "A monograph of the genus Acarospora". Kongliga Svenska Vetenskapsakademiens Handlinger 7 (4 (III)): 263.
Wikidata ☰ Q10398800 entry
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