The saxicolous species of the genus Usnea subgenus Usnea (Parmeliaceae) in Argentina and Uruguay
Eight primarily saxicolous Usnea subgenus Usnea species are reported from Argentina and Uruguay: U. amblyoclada (Müll. Arg.) Zahlbr. (syn. nov. U. pinnata Räsänen), U. densirostra Motyka, U. durietzii Motyka (syn. nov. U. caespitia Motyka), U. exigua J.M. Rodr. & P. Clerc sp. nov., U. fastuosa (...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Argentina |
| Recursos: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/42854 |
| Acesso em linha: | http://hdl.handle.net/11336/42854 |
| Access Level: | acceso abierto |
| Palavra-chave: | South America Taxonomy Lichens Systematics https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| Resumo: | Eight primarily saxicolous Usnea subgenus Usnea species are reported from Argentina and Uruguay: U. amblyoclada (Müll. Arg.) Zahlbr. (syn. nov. U. pinnata Räsänen), U. densirostra Motyka, U. durietzii Motyka (syn. nov. U. caespitia Motyka), U. exigua J.M. Rodr. & P. Clerc sp. nov., U. fastuosa (Müll. Arg.) Zahlbr., U. hieronymii Kremp. (syn. nov. U. hieronymii var. adusta Kremp.), U. lutii J.M. Rodr. & P. Clerc sp. nov. and Usnea saxidilatata J.M. Rodr. & P. Clerc sp. nov. are described with morphological, anatomical and chemical data. Their taxonomy and distribution are discussed. A key to the saxicolous species, including those occurring secondarily on rocks (i.e., U. columbiana Motyka, U. cornuta Ko ̈rb., U. dasaea Stirt. and U. cf. perhispidella J. Steiner) is provided. |
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