A new species of Eunotia from southeastern Brazil: Eunotia fuhrmannii

The study of periphytic material sampling in the Atlantic Rainforest of Southeast Brazil revealed the occurrence of a new species, Eunotia fuhrmannii sp. nov., found in humid rocks associated to Sphagnum L. The taxon has strongly dorsiventral valve with a median ridge, rounded to cuneate-obtuse apex...

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Veröffentlicht in:Iheringia. Série botanica 2011-12, Vol.66 (2), p.201-208
Hauptverfasser: Metzeltin, D, Tremarin, P I
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description The study of periphytic material sampling in the Atlantic Rainforest of Southeast Brazil revealed the occurrence of a new species, Eunotia fuhrmannii sp. nov., found in humid rocks associated to Sphagnum L. The taxon has strongly dorsiventral valve with a median ridge, rounded to cuneate-obtuse apex, prominent polar nodules, spaced striae in the middle, and shortened at the junction of valve face with the mantle. E. fuhrmannii distinguished from similar species, as E. prolongata var. simplex Hustedt e E. brinkmannii Metzeltin & Lange-Bertalot, mainly by the shape of valve ends, density of striae, position of polar nodules and shape of terminal raphe fissures.Original Abstract: O estudo de material perifitico coletado em locais na Mata Atlantica do Sudeste do Brasil revelou a ocorrencia de uma nova especie, Eunotia fuhrmannii sp. nov., encontrada em rochas umidas associadas a Sphagnum L. Este taxon apresenta valvas fortemente dorsiventrais com uma saliencia mediana, extremidades arredondadas a cuneado-obtusas, nodulos polares proeminentes, estrias espacadas na regiao mediana e encurtadas na juncao da face valvar com o manto. E. fuhrmannii distingue-se de especies semelhantes, como E. prolongata var. simplex Hustedt e E. brinkmannii Metzeltin & Lange-Bertalot, principalmente, pela forma das extremidades valvares, densidade de estrias, posicao dos nodulos polares e forma das fissuras terminais da rafe.
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Sphagnum
title A new species of Eunotia from southeastern Brazil: Eunotia fuhrmannii
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