Biology:Redonographa galapagoensis
| Redonographa galapagoensis | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Graphidales |
| Family: | Redonographaceae |
| Genus: | Redonographa |
| Species: | R. galapagoensis
|
| Binomial name | |
| Redonographa galapagoensis Bungartz & Lücking (2013)
| |
Redonographa galapagoensis is a species of saxicolous (rock-dwelling), crustose lichen in the family Redonographaceae.[1] Found in the Galápagos Islands, it was formally described as a new species in 2013 by lichenologists Frank Bungartz and Robert Lücking. The type specimen was collected by the first author from Santiago Island. Redonographa galapagoensis grows along the coast underneath wind- and rain-sheltered, shaded overhangs. Redonographa galapagoensis was previously reported as Carbacanthographis saxiseda, but it was found to represent an undescribed taxon. It appears to be endemic to the Galapagos Islands.[2]
Description
The thallus of Redonographa galapagoensis is [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] and whitish gray, becoming yellowish white in the herbarium, with a smooth, [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] surface. The apothecia are prominent, rounded to shortly [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], and mostly unbranched. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] are [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], and the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] are narrow and somewhat [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] with thickened septa and lens-shaped to rounded [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. The lichen produces norstictic acid, and the thallus turns K+ (yellow, then red), forming needle-shaped crystals under the microscope.[2]
The species is recognized by its rather prominent, partially open ascomata, verrucose periphysoids, and narrow ascospores. Its verrucose periphysoids have a different appearance from the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] surface found in Carbacanthographis, suggesting that the two genera are not closely related and do not have shared synapomorphies.[2]
References
- ↑ "Redonographa galapagoensis Bungartz & Lücking". Species 2000: Naturalis, Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/4RPC4.
- ↑ 2.0 2.1 2.2 Lücking, Robert; Tehler, Anders; Bungartz, Frank; Rivas Plata, Eimy; Lumbsch, H. Thorsten (2013). "Journey from the West: Did tropical Graphidaceae (lichenized Ascomycota: Ostropales) evolve from a saxicolous ancestor along the American Pacific coast?". American Journal of Botany 100 (5): 844–856. doi:10.3732/ajb.1200548.
Wikidata ☰ Q108316245 entry
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