Rinodina castanomelodes resembles the common species R. bischoffii in the Bischoffii spore type; it is mainly distinguished by a well-developed thallus. It only occurs at high elevations, predominantly above the upper tree line. It grows on calcareous rocks and also on anthropogenic substrates, such as concrete. In the Czech Republic, the species has only been recorded on the Sněžka Mountain, at a concrete pillar of the cableway station (Vondrák et al. 2006). It has also been collected at the Polish side of the Sněžka, likewise from concrete.
Literature: Vondrák J., Kocourková J., Palice Z. & Liška J. (2006): New and noteworthy lichens in the Czech Republic – genus Rinodina. – In: Lackovičová A., Guttová A., Lisická E. & Lizoň P. [eds], Central European lichens – diversity and threat, p. 109–118. Mycotaxon Ltd., Ithaca.taxonomic classification:
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