Redonographa galapagoensis
species of lichen
Redonographa galapagoensis is a species of saxicolous (rock-dwelling), crustose lichen in the family Redonographaceae. 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.
Description
The thallus of Redonographa galapagoensis is areolate and whitish gray, becoming yellowish white in the herbarium, with a smooth, epruinose surface. The apothecia are prominent, rounded to shortly lirellate, and mostly unbranched. The periphysoids are verrucose, and the ascospores are narrow and somewhat muriform with thickened septa and lens-shaped to rounded lumina. The lichen produces norstictic acid, and the thallus turns K+ (yellow, then red), forming needle-shaped crystals under the microscope.
The public source identifies “Redonographa galapagoensis” as species of lichen. This brief keeps that definition visible, then builds a research path around Redonographa, galapagoensis and species.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Apr 17, 2023. The linked authority identifier is Q108316245. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2013.
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This entry incorporates text from “Redonographa galapagoensis” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.