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New species of the genus Rimularia Nyl. from Tasmania

Published online by Cambridge University Press:  12 May 2014

Gintaras KANTVILAS
Gintaras KANTVILAS*
Affiliation:
Tasmanian Herbarium, PO Box 5058, UTAS LPO, Sandy Bay, Tasmania, Australia7005. Email: Gintaras.Kantvilas@tmag.tas.gov.au
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Abstract

Five new species of Rimularia, all endemic to Tasmania, are described, discussed and illustrated: Four species are saxicolous: R. albotessellata Kantvilas (containing pannarin): R. aspicilioides Kantvilas (containing 2′-O–methylperlatolic acid and with apothecia with a thalline margin); R. circumgrisea Kantvilas (containing norstictic acid, and with ascospores 8·5–14·0×5·0–6·5 µm); and R. coppinsiana Kantvilas (containing bourgeanic acid and with ascospores 10–19×7–12 µm). The corticolous R. asteriphila Kantvilas lacks lichen substances, contains Sedifolia-grey pigment and has ascospores 10–15×7–10 µm. The widespread R. psephota (Tuck.) Hertel & Rambold, with which several of the new taxa are compared, is also described, based on Tasmanian collections. Several chemical compounds, including bourgeanic acid, pannarin and 2′–O–methylperlatolic acid, are recorded for the genus for the first time. A key to the 12 species currently recorded for Tasmania is presented.

Keywords

lichensSouthern HemispheretaxonomyTrapeliaceae
Type
Articles
Information
The Lichenologist , Volume 46 , Issue 3 , May 2014 , pp. 349 - 364
Copyright
Copyright © British Lichen Society 2014 

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