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Molecular and morphological data place Blarneya in Tylophoron (Arthoniaceae)
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Systematic Biology.
2011 (English)In: The Lichenologist, ISSN 0024-2829, E-ISSN 1096-1135, Vol. 43, no 4, 345-356 p.Article in journal (Refereed) Published
Abstract [en]

Based on morphological, anatomical, chemical, ecological and molecular evidence, Blarneya is synonymized here with Tylophoron. The molecular phylogeny derived from sequences obtained from sporodochia of Blarneya places this genus, described to accommodate an anamorphic lichen with white cushion-shaped sporodochia, within Tylophoron. This conclusion is further supported by the discovery of Tylophoron-type ascomata emerging directly from thalli with Blarneya-type sporodochia and producing identical hyaline conidia. In one specimen pycnidia were also observed. This represents a surprising variety of morphologically different conidiomata. A different anamorphic type was previously reported from Tylophoron, and this is confirmed here by molecular analysis for T. moderatum: besides thalli with ascomata this species has anamorphic thalli with an irregularly delimited brown sporodochial felt and brown conidia. Ascomata are not known from these entirely anamorphic thalli, whereas they do occur infrequently in Tylophoron species with Blarneya-type sporodochia. A key to all currently accepted species of Tylophoron is provided. In addition to the corticolous Tylophoron hibernicum, confined to humid forests, two saxicolous species with Blarneya-type sporodochia are described here as new: T. galapagoense, known only from Galapagos, differs from T. hibernicum by a thicker, more compact, beige rather than white, more strongly C+ red thallus, growing below sheltered rock overhangs in dry forests; T. stalactiticum has a C- thallus with stipitate, white, C+ red sporodochia; the species is known only from a single locality in Tenerife, on a large slope with volcanic boulders.

Place, publisher, year, edition, pages
2011. Vol. 43, no 4, 345-356 p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-155919DOI: 10.1017/S002428291100020XISI: 000291632700006OAI: oai:DiVA.org:uu-155919DiVA: diva2:429621
Available from: 2011-07-05 Created: 2011-07-04 Last updated: 2017-12-11Bibliographically approved

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