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Typification and taxonomic status re-evaluation of 15 taxon names within the species complex Cymbellaaffinis/tumidula/turgidula (Cymbellaceae, Bacillariophyta).

da Silva WJ, Jahn R, Ludwig TA, Hinz F, Menezes M - PhytoKeys (2015)

Bottom Line: Specimens belonging to the Cymbellaaffinis / Cymbellatumidula / Cymbellaturgidula species complex have many taxonomic problems, due to their high morphological variability and lack of type designations.Fifteen taxon names of this complex, distributed in five species, were re-evaluated concerning their taxonomic status, and lectotypified based on original material.Four new combinations are proposed in order to reposition infraspecific taxa.

View Article: PubMed Central - PubMed

Affiliation: Labfico, Departamento de Botânica, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil ; Programa de Pós-graduação em Biodiversidade Vegetal, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil.

ABSTRACT
Specimens belonging to the Cymbellaaffinis / Cymbellatumidula / Cymbellaturgidula species complex have many taxonomic problems, due to their high morphological variability and lack of type designations. Fifteen taxon names of this complex, distributed in five species, were re-evaluated concerning their taxonomic status, and lectotypified based on original material. In addition to light microscopy, some material was analyzed by electron microscopy. Four new combinations are proposed in order to reposition infraspecific taxa.

No MeSH data available.


Cymbellasubturgidula Krammer from Japan, in the original material of Cymbellatumidulavar.nipponica Skvortsov [≡ Cymbellarheophila Ohtsuka], in sample 0983 85, 87 External valvar view 86, 88, 89 Internal valvar view.
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Figure 6: Cymbellasubturgidula Krammer from Japan, in the original material of Cymbellatumidulavar.nipponica Skvortsov [≡ Cymbellarheophila Ohtsuka], in sample 0983 85, 87 External valvar view 86, 88, 89 Internal valvar view.

Mentions: Figs 71–84, 85–89, 90–97


Typification and taxonomic status re-evaluation of 15 taxon names within the species complex Cymbellaaffinis/tumidula/turgidula (Cymbellaceae, Bacillariophyta).

da Silva WJ, Jahn R, Ludwig TA, Hinz F, Menezes M - PhytoKeys (2015)

Cymbellasubturgidula Krammer from Japan, in the original material of Cymbellatumidulavar.nipponica Skvortsov [≡ Cymbellarheophila Ohtsuka], in sample 0983 85, 87 External valvar view 86, 88, 89 Internal valvar view.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4547021&req=5

Figure 6: Cymbellasubturgidula Krammer from Japan, in the original material of Cymbellatumidulavar.nipponica Skvortsov [≡ Cymbellarheophila Ohtsuka], in sample 0983 85, 87 External valvar view 86, 88, 89 Internal valvar view.
Mentions: Figs 71–84, 85–89, 90–97

Bottom Line: Specimens belonging to the Cymbellaaffinis / Cymbellatumidula / Cymbellaturgidula species complex have many taxonomic problems, due to their high morphological variability and lack of type designations.Fifteen taxon names of this complex, distributed in five species, were re-evaluated concerning their taxonomic status, and lectotypified based on original material.Four new combinations are proposed in order to reposition infraspecific taxa.

View Article: PubMed Central - PubMed

Affiliation: Labfico, Departamento de Botânica, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil ; Programa de Pós-graduação em Biodiversidade Vegetal, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil.

ABSTRACT
Specimens belonging to the Cymbellaaffinis / Cymbellatumidula / Cymbellaturgidula species complex have many taxonomic problems, due to their high morphological variability and lack of type designations. Fifteen taxon names of this complex, distributed in five species, were re-evaluated concerning their taxonomic status, and lectotypified based on original material. In addition to light microscopy, some material was analyzed by electron microscopy. Four new combinations are proposed in order to reposition infraspecific taxa.

No MeSH data available.