<i>Blastocaulon</i> (Eriocaulaceae), a synonym of <i>Paepalanthus</i>: Morphological and molecular evidence

Andrade, María José Gomes de; Giulietti, Ana María; Harley, R. M.; Berg, Cássio van den

doi:10.1002/tax.601015

Cited by 12 publications

(9 citation statements)

References 10 publications

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“…Although slightly different from previous phylogenetic analyses, our results are strongly supported and consistent with morphology and with part of the historical classifications. The previous changes in nomenclature proposed for solving issues of Blastocaulon , Syngonanthus and Philodice are further supported (Giulietti et al ., ; Andrade et al ., ). The segregation of Comanthera from Syngonanthus (Parra et al ., ) is also supported, but not required.…”

Section: Discussionmentioning

confidence: 97%

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Molecular phylogenetics and biogeography of Neotropical Paepalanthoideae with emphasis on BrazilianPaepalanthus(Eriocaulaceae)

Trovó¹,

Andrade

Sano

et al. 2012

Bot J Linn Soc

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Subfamily Paepalanthoideae encompass the largest generic diversity in Eriocaulaceae. In the present study, the main goals were to infer the phylogeny of this subfamily focusing on Paepalanthus, to evaluate recent classifications and morphological characters in a phylogenetic context and to reconstruct the historical biogeography of the group. Sampling involved 94 ingroup species corresponding to all recognized genera and three outgroup species. Two molecular data sets, nuclear ribosomal internal transcribed spacer (nrITS) and plastid trnL‐trnF, were analysed under parsimony and Bayesian methods. Rondonanthus is monophyletic and confirmed as sister to the remaining Paepalanthoideae. Leiothrix and Actinocephalus are each monophyletic, whereas Syngonanthus may be either monophyletic or paraphyletic with the recognition of Philodice. Four subgenera of Paepalanthus are monophyletic, but P. subgenus Paepalanthus is polyphyletic. Morphological characters used in previous classifications are assessed as putative synapomorphies for recognized genera. Some of the characters employed in defining Paepalanthus subcategories appear to have evolved multiple times, and many clades may be exclusively defined by molecular synapomorphies. Biogeographical reconstructions suggest that the current distribution patterns may be related to vicariance and a few long‐distance dispersal events. Furthermore, some clades are restricted to narrow geographical areas, perhaps important as a means of conserving evolutionary processes. © 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, ●●, ●●–●●.

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Section: Discussionmentioning

confidence: 97%

“…Eriocaulaceae comprise c . 1200 species and 11 genera distributed throughout the tropics (Giulietti & Hensold, ; Stützel, ; Sano, ; Parra et al ., ; Andrade et al ., ). The family is historically divided into two subfamilies: Paepalanthoideae and Eriocauloideae (Koernicke, ; Ruhland, ).…”

Section: Introductionmentioning

confidence: 97%

Molecular phylogenetics and biogeography of Neotropical Paepalanthoideae with emphasis on BrazilianPaepalanthus(Eriocaulaceae)

Trovó¹,

Andrade

Sano

et al. 2012

Bot J Linn Soc

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“…The family includes 11 genera and c . 1110 species (Sano, 2004; Parra et al ., 2010; Andrade et al ., 2011) and belongs to Poales (APG, 2009). The distribution is pantropical, because of the broad distribution of Eriocaulon L., but two main centres of diversity are recognized in the Neotropics: the Brazilian Espinhaço Range (where 35% of the entire family diversity occurs) and the Guyanan, Venezuelan and Brazilian tepuis (Giulietti & Hensold, 1990; Stützel, 1998; Costa, Trovó & Sano, 2008).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic analysis of the Brazilian microendemic Paepalanthus subgenus Xeractis (Eriocaulaceae) inferred from morphology

Echternacht

Sano

Trovó

et al. 2011

Botanical Journal of the Linnean Society

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Paepalanthus subgenus Xeractis (Eriocaulaceae) comprises 28 recognized species endemic to the Espinhaço Range, in Minas Gerais state, Brazil. Most species of the subgenus are restricted to small localities and critically endangered, but still in need of systematic study. The monophyly of the subgenus has already been tested, but only with a few species. Our study presents the first phylogenetic hypothesis within the group, based on morphology. A maximum parsimony analysis was conducted on a matrix of 30 characters for 30 terminal taxa, including all species of the subgenus and two outgroups. The biogeographical hypotheses for the subgenus were inferred based on dispersal-vicariance analysis (DIVA). The analysis provided one most-parsimonious hypothesis that supports most of the latest published subdivisions (sections and series). However, some conflicts remain concerning the position of a few species and the relationships between sections. The distribution and origin(s) of microendemism are also discussed, providing the ground for conservation strategies to be developed in the region.

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“…Paepalanthoideae comprises Rondonanthus, Paepalanthus, Syngonanthus, Comanthera, Leiothrix, Lachnocaulon, Tonina, and Actinocephalus, and is characterized by presenting isostemonous staminate flowers and nectariferous style branches in the pistillate flowers (Ruhland 1903;Herzog 1931;Sano 2004;Parra et al 2010;Andrade et al 2011;Giulietti et al 2012). Eriocauloideae comprises Eriocaulon and Mesanthemum, and its representatives have diplostemonous staminate flowers and petals with glands in both staminate and pistillate flowers (Ruhland 1903;Giulietti et al 2012).…”

Section: Introductionmentioning

confidence: 98%

Anatomical characterization of vegetative organs and scapes of Rondonanthus (Eriocaulaceae, Poales)

Oliveira

Oriani

2016

Braz. J. Bot

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Eriocaulaceae is a pantropical family and comprises ten genera. Rondonanthus is endemic to the north region of South America and comprises six species. The anatomy of roots, stem, leaves, and scapes were studied in four species to characterize the genus and to identify characteristics with taxonomic value. The following characteristics are diagnostic of Rondonanthus: roots-heterogeneous cortex with an aerenchyma supported by arm cells and vascular cylinder with a central metaxylem vessel element; stems-idioblasts with druses in the cortex and in the pith; leaves-Malpighian hairs, hypodermis in the adaxial surface, chlorenchyma with arm cells, druse idioblasts in the mesophyll, and vascular bundle sheath extensions with rounded cells; scapes-Malpighian hairs and chlorenchyma with arm cells. Rondonanthus capillaceus differed from the remaining studied species by presenting roots with a homogeneous cortex with thinwalled cells; filiform leaves without stomata and trichomes but with a chlorophyllous epidermis and a parenchymatous mesophyll and only one central vascular bundle without sheath extension. Such differences may be related to the habitat, since this species grows on river margins and requires hydrodynamic organs. The number of vascular bundles in the leaves is a useful characteristic to differentiate among species.

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Blastocaulon (Eriocaulaceae), a synonym of Paepalanthus: Morphological and molecular evidence

Cited by 12 publications

References 10 publications

Molecular phylogenetics and biogeography of Neotropical Paepalanthoideae with emphasis on BrazilianPaepalanthus(Eriocaulaceae)

Molecular phylogenetics and biogeography of Neotropical Paepalanthoideae with emphasis on BrazilianPaepalanthus(Eriocaulaceae)

Phylogenetic analysis of the Brazilian microendemic Paepalanthus subgenus Xeractis (Eriocaulaceae) inferred from morphology

Anatomical characterization of vegetative organs and scapes of Rondonanthus (Eriocaulaceae, Poales)

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