Molecular phylogeny of the fern genus Elaphoglossum (Elaphoglossaceae) based on chloroplast non-coding DNA sequences: contributions of species from the Indian Ocean area

Rouhan, Germinal; Dubuisson, Jean‐Yves; Motley, Timothy J.; Mickel, John T.; Labat, Jean-Noël; Moran, Robbin C.

doi:10.1016/j.ympev.2004.08.006

Cited by 100 publications

(86 citation statements)

References 57 publications

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“…This clade is in turn sister to the "former lomariopsid" genera (fl, Figure 1d), within which Bolbitis is resolved as polyphyletic. The relationships I resolve within the large genus Elaphoglossum are in general agreement with those from recent studies (Rouhan & al., 2004;Skog & al., 2004).…”

Section: Forms a Clade Withsupporting

confidence: 90%

Phylogeny of the Fern Genus Melpomene (Polypodiaceae) Inferred from Morphology and Chloroplast DNA Analysis

et al. 2009

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Leptosporangiate ferns, with more than 9000 extant species, are truly exceptional among the non-flowering lineages of vascular plants. However, this rather remarkable diversity was not simply a consequence of being able to "hold on" as flowering plants rose to dominance. Instead, it appears to be the result of an ecological opportunistic response to the establishment of more complex, angiosperm-dominated ecosystems. The proliferation of flowering plants across the landscape undoubtedly resulted in the formation of a plethora of new niches into which leptosporangiate ferns could diversify. Many of these were evidently on shady forest floors, but many others were actually within the new angiosperm-dominated canopies. Today, almost one third of leptosporangiate species grow as epiphytes on angiosperm trees. My dissertation aims to demystify the evolution and diversification of epiphytic ferns in order to more fully understand the leptosporangiate success story. By assembling and analyzing the most inclusive molecular dataset for leptosporangiate ferns to date, I provide unprecedented insight into overall fern relationships and a solid and balanced phylogenetic framework within which the evolution of epiphytism can be examined. By employing this phylogeny and numerous constraints from the fern fossil record, I uncover the timing of epiphytic fern diversification and examine the origin of the modern tropical rain forest biome in which these ferns reside.

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Section: Forms a Clade Withsupporting

confidence: 90%

Phylogeny of the Fern Genus Melpomene (Polypodiaceae) Inferred from Morphology and Chloroplast DNA Analysis

et al. 2009

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“…Polytrichia Christ are closely allied, corroborated by Rouhan et al (2004) in the figure 2 of their phylogenetic analysis; however, Rojas (2003) showing that sect. Polytrichia is more diverse and complicated that previously mentioned.…”

Section: Distribution Known Only From Cocos Island Inmentioning

confidence: 76%

A new species and three hybrids in the ferns from Cocos Island, Puntarenas, Costa Rica.

Rojas-Alvarado

2018

abm

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Resumen Una nueva especie y tres híbridos en helechos para la Isla del Coco, Puntarenas, Costa RicaUna especie nueva y tres híbridos de helechos para la Isla del Coco (Costa Rica) son descritos e ilustrados aquí: Nephrolepis cocosensis A. Rojas, Cyathea × robusta A. Rojas, Elaphoglossum × intermedium A. Rojas y Tectaria × epilithica A. Rojas. La nueva especie difiere de Nephrolepis rivularis (Vahl) Mett. ex Krug por su hábitat terrestre, frondas más pequeñas, pinnas más pequeñas and estas perpendicular al raquis, pinnas marginalmente lobuladas a bilobuladas distalmente, escamas del raquis pardo pálido con el punto de inserción pardo oscuro, escamas de la lámina 0.2-0.4 mm en diámetro, algunas veces reducidas a puntos resinosos, soros submarginales, muchas veces en los lóbulos internos de cada segmento, indusios cordiformes and basalmente adheridos, estos pardo pálidos con el punto de inserción pardo oscuro. El primer híbrido es intermedio entre Cyathea alfonsiana L.D. Gómez y C. notabilis Domin, en tamaño del tronco, tamaño y forma de las escamas del rizoma y base del estípite, tamaño de las frondas, pares de venas por segmento and grado de división de estas and y tamaño de los parafisos, pero tiene frondas más grandes que ambos progenitores, por esta razón el nombre del epíteto. Elaphoglossum x intermedium es un híbrido entre E. alvaradoanum A. Rojas y E. crinitum (L.) Christ, el cual es caracterizado por escamas del estípite y lámina pardos, lámina con base cuneada and ápice obtuso, y venas parcial e irregularmente anastomosadas. Tectaria x epilithica tiene caracteres intermedios entre T. incisa Cav. y T. mexicana (Fée) C.V. Morton, y es fácil de reconocer porque tiene lámina 1-pinnado-pinnatífida y tamaño intermedio entre las escamas del rizoma.Palabras clave: Cyathea, Elaphoglossum, especie nueva, híbridos nuevos, Nephrolepis, Tectaria. AbstractA new species and three new hybrids of ferns from the Cocos Island (Costa Rica) are described here: Cyathea × robusta A. Rojas, Elaphoglossum × intermedium A. Rojas, Nephrolepis cocosensis A. Rojas and Tectaria × epilithica A. Rojas. The new species differs from Nephrolepis rivularis (Vahl) Mett. ex Krug by its terrestrial habitat, smaller fronds, smaller pinnae that are perpendicular to rachis and lobed to bilobed distally, pale brown rachis scales with dark brown insertion points, blade scales 0.2-0.4 mm in diameter, sometimes reduced to a resinous dots, sori submarginal, frequently in the internal lobe of each segments, and indusia cordiform and basally attached, pale brown with dark brown point of attachment. The first hybrid is intermediate between Cyathea alfonsiana L.D. Gómez and C. notabilis Domin, in trunk tall, size and form of rhizome and stipe scales, fronds size, pairs per segment and division degree of veins and paraphyses size, but has bigger fronds that both progenitors, this character is the basis for its specific epithet. Elaphoglossum x intermedium is a hybrid between E. alvaradoanum A. Rojas and E. crinitum Cabecera Artículo Acta Botanica Malacitan...

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“…The section Undulata Christ was defined by short creeping to erect rhizome; absence of phyllopodia; ovate-lanceolate blade; subulate to deltate-lanceolate, erose or toothed blade scales; conspicuous hydathodes; spores without ridges, openly reticulate-equinate, the spine bases diverging and forming a reticulum occasionally with irregular verrucae or perforated crests. Rouhan et al (2004), in their phylogenetic analyses, found that the section Undulata is part of the section Setosa (Christ) Mickel & L. Atehortúa. However, because the authors decided not to describe the aberrant clades as new taxa, it is assumed that further studies are required to establish a new classification system.…”

Section: Introductionmentioning

confidence: 99%

A nex species of Elaphoglossum Schott ex J. Sm. (Dryopteridaceae) from Costa Rica.

Rojas-Alvarado

Cambronero²

2018

abm

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Una especie nueva de Elaphoglossum Schott ex J. Sm de la sección Undulata Christ es descrita aquí: Elaphoglossum pallidosquamum A. Rojas & P. Muñoz. La nueva especie es similar a E. herpestes por su rizoma largo ascendente, pero difiere por escamas del rizoma no cordadas basalmente (vs. cordadas) y más pálidas pardo-amarillentas con margen blanquecino o completamente blanquecinas (vs. castañas), escamas del estípite adpresas (vs. adpresas a moderadamente patentes) y más densas, lámina más angosta 2.5-4 cm de ancho (vs. 5-6.5 cm) con base anchamente cuneada a obtusa (vs. redonda), lámina con diferentes tipos de escamas las costales imbricadas (vs. distantes entre sí), escamas adaxiales densas (vs. dispersas), escamas abaxiales enrrolladas y moderadamente densas (vs. escamas abaxiales planas y dispersas) y, escamas marginales muy densas (vs. moderadamente densas a dispersas) y estas más pálidas blanquecinas a amarillo pálido (vs. pardas).Palabras clave: Eupolipodios, helechos, Polypodiales, Pteridophyta, sección Undulata. AbstractA new species of Elaphoglossum Schott ex J. Sm of section Undulata Christ is described here: Elaphoglossum pallidosquamum A. Rojas & P. Muñoz. The new species is similar to E. herpestes because of its long ascending rhizome, but differs by its not chordate (vs. chordate) basally and paler rhizome scales brown-yellowish with whitish margin or fully whitish (vs. castaneous), appressed (vs. appressed to moderately patent) and more dense stipe scales, narrower blade 2.5-4 cm broad (vs. 5-6.5 cm) with broadly cuneate to obtuse base (vs. rounded), blade with different scale types costa with imbricate scales, dense and flat adaxial scales, moderately dense and enrolled abaxial scales and very dense marginal scales (vs. all scales similar except for denser in midvein) and they are paler whitish to pale yellow (vs. brown).

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Molecular phylogeny of the fern genus Elaphoglossum (Elaphoglossaceae) based on chloroplast non-coding DNA sequences: contributions of species from the Indian Ocean area

Cited by 100 publications

References 57 publications

Phylogeny of the Fern Genus Melpomene (Polypodiaceae) Inferred from Morphology and Chloroplast DNA Analysis

Phylogeny of the Fern Genus Melpomene (Polypodiaceae) Inferred from Morphology and Chloroplast DNA Analysis

A new species and three hybrids in the ferns from Cocos Island, Puntarenas, Costa Rica.

A nex species of Elaphoglossum Schott ex J. Sm. (Dryopteridaceae) from Costa Rica.

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