Rinodina rinodinoides (Anzi) H. Mayrhofer & Scheid.

Rinodina rinodinoides forms a conspicuous grey-white areolate thallus with black apothecia, immersed in the thallus at first, later adnate, with a grey to black lecideine margin. Spores are irregular, strongly thickened (Milvina type) and with rugulate surface (Mayrhofer et al. 1992).

It occurs on hard siliceous rock, typically on serpentinite. In Europe, the species is widely distributed, but generally rare. It prefers xerothermic rocky sites and, in the Mediterranean, it can also be found high in the mountains. Nimis et al. (2008) consider it an arctic-alpine species. In the Czech Republic, R. rinodinoides has two known localities in Moravia. From one of them, serpentinite rocks in the valley of the Svratka river near Ujčov, north of Tišnov, it was even described under the name R. serpentini (Mayrhofer & Poelt 1979). The other locality, a serpentinite rock in the valley of the Jihlava river near Mohelenská hadcová step, is recent (Malíček et al. 2017). R. rinodinoides is a rare and strictly substrate-specific species. It occurs in communities of uncommon lichens, such as Pertusaria chiodectonoides.

Literature: Nimis P. L., Hafellner J., Roux C., Clerc P., Mayrhofer H., Martellos S. & Bilovitz P. O. (2018): The lichens of the Alps – an annotated checklist. – Mycokeys 31: 1–634. Malíček J. et al. (2017): Lichens recorded during the Bryological and Lichenological meeting in Mohelno (Třebíč region, southwestern Moravia) in spring 2016. – Bryonora 60: 24–45. Mayrhofer H. & Poelt J. (1979): Die saxicolen Arten der Flechtengattung Rinodina in Europa. – J. Cramer, Vaduz. Mayrhofer H., Scheidegger C. & Sheard J. W. (1992): On the taxonomy of five saxicolous species of the genus Rinodina (lichenized Ascomycetes). – Nordic Journal of Botany 12: 451–459.

taxonomic classification:

Ascomycota Lecanoromycetes Caliciales Physciaceae Rinodina

most frequented synonyms:Rinodina serpentini

Red List (Liška & Palice 2010):EN – endangered
Red List (Malíček 2023):C1 – critically endangered

Occurrence in the Czech Republic

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Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

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