Lobothallia alphoplaca
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| Lobothallia alphoplaca | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Pertusariales |
| Family: | Megasporaceae |
| Genus: | Lobothallia |
| Species: | L. alphoplaca |
| Binomial name | |
| Lobothallia alphoplaca | |
| Synonyms[2] | |
Lobothallia alphoplaca, the variable sunken disk lichen, is a creamy gray to brown,[3]: 307 placodioid areolate lichen that grows on rock in on rock and sometimes moss.[4] It prefers growing on siliceous rocks.[4] It is found in Europe, central Asia, and North America, where it grows in the southwestern deserts to central California.[4] In Nepal, Lobothallia alphoplaca has been reported at 4,400 m elevation in a compilation of published records; this reported range lies above the treeline used in the study.[5]
The center has numerous crowded and deformed apothecia with rims of thallus-like tissue (lecanorine).[4] With dark reddish or grayish brown to black discs.[4] Lichen spot tests on the thallus and apothecia are C−, and KC−, with tests on the cortex K+ red, P+ orange, or K−, P− and on the medulla K+ red, and P+ orange.[4] It produces norstictic acid, constictic acid, or salazinic acid as secondary metabolites.[4]
