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The lichen genus Coenogonium in Tasmania

Published online by Cambridge University Press:  26 September 2018

G. KANTVILAS ,
E. RIVAS PLATA  and
R. LüCKING
G. KANTVILAS
Affiliation:
Tasmanian Herbarium, Tasmanian Museum and Art Gallery, P.O. Box 5058, Sandy Bay, Tasmania 7005, Australia. Email: [email protected]
E. RIVAS PLATA
Affiliation:
University of North Carolina Herbarium (NCU), CB #3280 Coker Hall, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3280, USA
R. LüCKING
Affiliation:
Botanischer Garten und Botanisches Museum Berlin, Königin-Luise-Strasse 6–8, 14195 Berlin, Germany
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Abstract

The genus Coenogonium Ehrenb. in Tasmania comprises seven species. New to science are: C. atherospermatis Kantvilas, Rivas Plata & Lücking, endemic to Tasmania and characterized by pale yellowish beige apothecia and relatively small ascospores, 6–8·5×2·5–3 µm; C. urceolatum Kantvilas, Rivas Plata & Lücking, likewise endemic to Tasmania and characterized by orange, urceolate apothecia, 0·3–0·4 mm wide, and uniseriate ascospores, 8·5–11×2·5–3 µm; and C. australiense Kantvilas & Lücking, recorded from Tasmania, South Australia and New South Wales, and characterized by orange apothecia, 0·5–2 mm wide, and relatively broad ascospores, 10–14×3–4·5 µm. Also treated are C. lutescens (Vĕzda & Malcolm) Malcolm (Tasmania and New Zealand) and three widespread taxa, namely C. implexum Nyl. (Southern Hemisphere), C. luteum (Dicks.) Kalb & Lücking and C. pineti (Schrad. ex Ach.) Lücking & Lumbsch (both subcosmopolitan). All species are described in full from Tasmanian collections and illustrated, and their ecology, variation and affinities to related species are discussed. The Tasmanian taxa are also discussed in the context of the Australasian lichen biota.

Keywords

CoenogoniaceaeDimerellalichensSouthern Hemispheretaxonomy
Type
Articles
Information
The Lichenologist , Volume 50 , Issue 5 , September 2018 , pp. 571 - 582
Copyright
© British Lichen Society, 2018 

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