Details

Autor(en) / Beteiligte

• Chesnokov, Sergey V.
• Davydov, Evgeny A.
• Konoreva, Liudmila A.
• Prokopiev, Ilya A.
• Poryadina, Lena N.
• Zheludeva, Elena V.
• Shavarda, Alexey L.

Titel

The monotypic genus Flavocetraria and two new genera: Cladocetraria and Foveolaria, in the cetrarioid core

Ist Teil von

• Plant systematics and evolution, 2023-08, Vol.309 (4), p.24, Article 24

Ort / Verlag

Vienna: Springer Vienna

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Data on morphology, anatomy, secondary chemistry, ecology, as well as phylogenetic reconstructions based on ITS/5.8S and mtSSU sequence data suggest that “ Flavocetraria ” minuscula should be transferred to a new monotypic genus Cladocetraria , phylogenetically related to “ Cetraria” obtusata and Cetrariella . Cladocetraria minuscula is morphologically similar to Flavocetraria cucullata especially in miniature forms, but differs from this species in having helmet-shaped tips wrapped inside (up-turned) with inconspicuous white pruina, marginal pseudocyphellae in the form of a dotted line, and bacilliform uniformly thickened conidia. Differences from morphologically and phylogenetically related species are discussed. Chemical examination of Cladocetraria minuscula using a liquid chromatography–mass spectrometry assay revealed as previously reported usnic and protolichesterinic acids, as allo-protolichesterinic and lichesterinic acids reported for C. minuscula for the first time. According to presented phylogeny, Flavocetraria cucullata and F. nivalis are only distantly related and belong to different clades within the “ Nephromopsis ” branch, and must belong to different genera. In this regard, “ Flavocetraria ” nivalis should be transferred to the monotypic genus Foveolaria .