Skip to Main content Skip to Navigation
Journal articles

Ochrolechia kerguelensis sp. Nov. from the Southern Hemisphere and O. Antarctica reinstated from the synonymy of O. parella

Abstract : Ochrolechia kerguelensis Ertz & Kukwa is described as new to science from the subantarctic islands of Kerguelen. It is characterized by pruinose ascomata, usually 4-spored asci, large ascospores of 50-90 × 32-56 µm, the production of gyrophoric acid only in the apothecia and the lack of variolaric acid. A photobiont with cells containing orange guttules such as in trentepohlioid algae is recorded for the first time in the genus Ochrolechia, being present in O. austroamericana and O. kerguelensis. Ochrolechia antarctica is reinstated from the synonymy of O. parella and treated as a distinct species. Chemical and morphological differences between these taxa are discussed. Ochrolechia chilensis and O. deceptionis are treated as synonyms of O. antarctica. The phylogenetic placement of O. antarctica, O. austroamericana and O. kerguelensis is investigated using mtSSU rDNA sequences and a Bayesian analysis. A key to all fertile, saxicolous Ochrolechia species with a C+ red epihymenium occurring in the Southern Hemisphere is presented. © 2016 Magnolia Press.
Document type :
Journal articles
Complete list of metadatas

https://hal-univ-rennes1.archives-ouvertes.fr/hal-01397858
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, November 16, 2016 - 1:42:52 PM
Last modification on : Wednesday, September 16, 2020 - 11:06:02 AM

Identifiers

Citation

Damien Ertz, Alan Fryday, Imke Schmitt, Maryvonne Charrier, Magdalena Dudek, et al.. Ochrolechia kerguelensis sp. Nov. from the Southern Hemisphere and O. Antarctica reinstated from the synonymy of O. parella. Phytotaxa, Magnolia Press 2016, 280 (2), pp.129-140. ⟨10.11646/phytotaxa.280.2.3⟩. ⟨hal-01397858⟩

Share

Metrics

Record views

143