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Calicium sequoiae, a new lichen species from north-western California, USA
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
2008 (English)In: The Lichenologist, ISSN 0024-2829, Vol. 40, no Part 3, 185-194 p.Article in journal (Refereed) Published
Abstract [en]

We describe Calicium sequoiae as a new species of lichenized Ascomycota from northwestern California, USA. The species is distinguished morphologically from other known members of Calicium by its stalks that react I+ blue, mature ascospores that are ornamented with spiral ridges, and apothecia that produce prominent white pruina. It is also the only Calicium known to produce thamnolic acid as a major secondary substance. Sequences from the ITS-region showed C. sequoiae to be unique among calicioid Physciaceae, and phylogenetic analysis positioned it close to C. adspersum, C. chlorosporum, C. lenticulare, Cyphelium notarisii, and C. tigillare. Thus far, Calicium sequoiae has been collected only from old-growth redwood (Sequoia sempervirens) forests, where it occurred on thick, fibrous bark of large redwood trees. A key to the 12 species of Calicium known from the Pacific Northwest is provided.

Place, publisher, year, edition, pages
2008. Vol. 40, no Part 3, 185-194 p.
Keyword [en]
Ascomycota, California, Caliciaceae, calicioid, key, Pacific Northwest, Physciaceae, redwood, Sequoia sempervirens
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-109961DOI: 10.1017/S0024282908007615ISI: 000257846200002OAI: oai:DiVA.org:uu-109961DiVA: diva2:274846
Available from: 2009-11-02 Created: 2009-11-02 Last updated: 2014-12-06Bibliographically approved

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Tibell, Leif
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