<i>Isoetes maxima</i>, a New Species from Brazil
- Autores
- Hickey, R. James; Macluf, Carmen Cecilia; Link Pérez, Melanie A.
- Año de publicación
- 2009
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Isoetes maxima from eastern Brazil is described as a new species. This taxon differs from other fully aquatic species in South America by a combination of its overall size, leaf coloration, finely tapering subulae, and megaspore morphology. While examining Isoetes from eastern Brazil, we encountered a specimen whose large size and dark coloration are unlike any known species from that region. The plants have numerous, very narrow, densely packed, and finely tapering leaves, and its megaspores are rugulate to tuberculate. In contrast, other large Isoetes in this region of South America have broader leaves that are less densely packed, and reticulate megaspores (Fuchs-Eckert, 1986; Macluf et al., 2008). The specimens in question were collected by Aloysio Sehnem in 1970. Sehnem determined his collection to be a new species and designated it so on the label as Isoetes maxima. The label indicates the collection as the intended holotype; however, Sehnem never described or validly published the new species. We have elected to use the name that Sehnem had inscribed on the specimen label since the overall stature and robust appearance of the taxon merit the appellation.
Facultad de Ciencias Naturales y Museo - Materia
-
Ciencias Naturales
Isoetes maxima
Brazil
new species - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/128309
Ver los metadatos del registro completo
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<i>Isoetes maxima</i>, a New Species from BrazilHickey, R. JamesMacluf, Carmen CeciliaLink Pérez, Melanie A.Ciencias NaturalesIsoetes maximaBrazilnew speciesIsoetes maxima from eastern Brazil is described as a new species. This taxon differs from other fully aquatic species in South America by a combination of its overall size, leaf coloration, finely tapering subulae, and megaspore morphology. While examining Isoetes from eastern Brazil, we encountered a specimen whose large size and dark coloration are unlike any known species from that region. The plants have numerous, very narrow, densely packed, and finely tapering leaves, and its megaspores are rugulate to tuberculate. In contrast, other large Isoetes in this region of South America have broader leaves that are less densely packed, and reticulate megaspores (Fuchs-Eckert, 1986; Macluf et al., 2008). The specimens in question were collected by Aloysio Sehnem in 1970. Sehnem determined his collection to be a new species and designated it so on the label as Isoetes maxima. The label indicates the collection as the intended holotype; however, Sehnem never described or validly published the new species. We have elected to use the name that Sehnem had inscribed on the specimen label since the overall stature and robust appearance of the taxon merit the appellation.Facultad de Ciencias Naturales y Museo2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf194-199http://sedici.unlp.edu.ar/handle/10915/128309enginfo:eu-repo/semantics/altIdentifier/issn/0002-8444info:eu-repo/semantics/altIdentifier/issn/1938-422xinfo:eu-repo/semantics/altIdentifier/doi/10.1640/0002-8444-99.3.194info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:31:03Zoai:sedici.unlp.edu.ar:10915/128309Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:03.865SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
<i>Isoetes maxima</i>, a New Species from Brazil |
title |
<i>Isoetes maxima</i>, a New Species from Brazil |
spellingShingle |
<i>Isoetes maxima</i>, a New Species from Brazil Hickey, R. James Ciencias Naturales Isoetes maxima Brazil new species |
title_short |
<i>Isoetes maxima</i>, a New Species from Brazil |
title_full |
<i>Isoetes maxima</i>, a New Species from Brazil |
title_fullStr |
<i>Isoetes maxima</i>, a New Species from Brazil |
title_full_unstemmed |
<i>Isoetes maxima</i>, a New Species from Brazil |
title_sort |
<i>Isoetes maxima</i>, a New Species from Brazil |
dc.creator.none.fl_str_mv |
Hickey, R. James Macluf, Carmen Cecilia Link Pérez, Melanie A. |
author |
Hickey, R. James |
author_facet |
Hickey, R. James Macluf, Carmen Cecilia Link Pérez, Melanie A. |
author_role |
author |
author2 |
Macluf, Carmen Cecilia Link Pérez, Melanie A. |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ciencias Naturales Isoetes maxima Brazil new species |
topic |
Ciencias Naturales Isoetes maxima Brazil new species |
dc.description.none.fl_txt_mv |
Isoetes maxima from eastern Brazil is described as a new species. This taxon differs from other fully aquatic species in South America by a combination of its overall size, leaf coloration, finely tapering subulae, and megaspore morphology. While examining Isoetes from eastern Brazil, we encountered a specimen whose large size and dark coloration are unlike any known species from that region. The plants have numerous, very narrow, densely packed, and finely tapering leaves, and its megaspores are rugulate to tuberculate. In contrast, other large Isoetes in this region of South America have broader leaves that are less densely packed, and reticulate megaspores (Fuchs-Eckert, 1986; Macluf et al., 2008). The specimens in question were collected by Aloysio Sehnem in 1970. Sehnem determined his collection to be a new species and designated it so on the label as Isoetes maxima. The label indicates the collection as the intended holotype; however, Sehnem never described or validly published the new species. We have elected to use the name that Sehnem had inscribed on the specimen label since the overall stature and robust appearance of the taxon merit the appellation. Facultad de Ciencias Naturales y Museo |
description |
Isoetes maxima from eastern Brazil is described as a new species. This taxon differs from other fully aquatic species in South America by a combination of its overall size, leaf coloration, finely tapering subulae, and megaspore morphology. While examining Isoetes from eastern Brazil, we encountered a specimen whose large size and dark coloration are unlike any known species from that region. The plants have numerous, very narrow, densely packed, and finely tapering leaves, and its megaspores are rugulate to tuberculate. In contrast, other large Isoetes in this region of South America have broader leaves that are less densely packed, and reticulate megaspores (Fuchs-Eckert, 1986; Macluf et al., 2008). The specimens in question were collected by Aloysio Sehnem in 1970. Sehnem determined his collection to be a new species and designated it so on the label as Isoetes maxima. The label indicates the collection as the intended holotype; however, Sehnem never described or validly published the new species. We have elected to use the name that Sehnem had inscribed on the specimen label since the overall stature and robust appearance of the taxon merit the appellation. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/128309 |
url |
http://sedici.unlp.edu.ar/handle/10915/128309 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0002-8444 info:eu-repo/semantics/altIdentifier/issn/1938-422x info:eu-repo/semantics/altIdentifier/doi/10.1640/0002-8444-99.3.194 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf 194-199 |
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