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A revision of the Pannaria rubiginosa complex in South America.

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The Pannaria rubiginosa -complex in S. America is shown to contain nine species with distinct ecogeographic distribution patterns: P. andina sp. nov. occurring in the upper forests and paramos of the northern Andes and Central America, P.caesiocinerea (Vain.) comb. nov. restricted to the Caribbean, P. coeruleonigrescens Müll. Arg. to SE Brazil, and P. rubiginella sp. nov. to the cool-Pacific lowlands and islands. The distribution of P.rubiginosa s.str. is not fully clarified, but it appears to be quite rare and confined to cool-temperate regions in the North and South, inbetween mainly occurring at high altitudes.There is also a group of more tropical to warm-temperate species, P. mosenii C.W. Dodge and three rather brownish, PD- species with rather small, subglobose spores: P. malmei C.W. Dodge, P. ramulosa P.M. Jørg. and P. subfusca P.M. Jørg. All species are described in detail and keyed out, and the nomenclature clarified.

Zusammenfassung: Die Pannaria rubiginosa - Gruppe umfasst neun Arten in Süd-Amerika. Sie werden beschrieben und schlüsselt. Ihre Verbreitungsareale, die oft beschränkt sind, werden definiert. In warm-temperierten Gebiet bis in die Tropen kommen drei bräunliche, Pd- Arten mit kleinen Sporen vor: P.malmei Dodge (Tiefland von S-Amerika) , P.ramulosa P.M. Jørg. (SO Brasilien) und P. subfusca P.M. Jørg (Mexico-Carolina). Drei von den anderen, graublauen, PD+ orange Arten kommen auch in niedrigen, warmen Lagen vor: P. caesiocinerea (Vain.) comb. nov. (Antillen), P. coeruleonigricans Müll. Arg. (SO Brasilien) und P. mosenii C.W. Dodge (Brasilien, Antillen, Mittel-Amerika). P.rubiginosa selber und die zwei nahe verwandten P. andina sp. nov. (NordAnden) und P. rubiginella sp. nov. (Juan Fernandez-Queen Charlotte Inseln) sind kalt-temperierte Arten. Alle Namen werden typifiert, und die Synomymen festgestellt.
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Document Type: Research Article

Publication date: May 1, 2004

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  • Nova Hedwigia is an international journal publishing original, peer-reviewed papers on current issues of taxonomy, morphology, ultrastructure and ecology of all groups of cryptogamic plants, including cyanophytes/cyanobacteria and fungi. The half-tone plates in Nova Hedwigia are known for their high quality, which makes them especially suitable for the reproduction of photomicrographs and scanning and transmission electron micrographs.
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