Rio de Janeiro, Brazil
Rio de Janeiro, Brazil

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Leme E.M.C.,Herbarium Bradeanum | Fontana A.P.,Projeto CORES
Systematic Botany | Year: 2010

Three morphologically and ecologically closely related new Pitcairnia species (Bromeliaceae: Pitcairnioideae), P. barbatostigma Leme & A. P. Fontana, P. glauca Leme & A. P. Fontana, and P. diversifolia Leme & A. P. Fontana, from the inselberge of Esprito Santo State, southeastern Brazil, are described and illustrated. These taxa form a putative natural complex of species, together with their close relative, P. azouryi Martinelli & Forzza, based on propagation by means of slender rhizomes; leaves forming a conspicuous bulbous-like base; basal leaf blades deciduous along a straight, strongly spirally enrolled transverse line; simple racemose inflorescence of varying shades of green and different concentrations of purple-wine irregular spots, and white lanate except for the petals; comparatively long flowers with nocturnal anthesis; naked petals, forming a tubular, zygomorphic corolla; and by the sulcate and oblate, large-sized, reticulate, more or less heterobrochate pollen grains. © 2010 by the American Society of Plant Taxonomists.

Krapp F.,University of Kassel | de Barros Pinange D.S.,Federal University of Pernambuco | Benko-Iseppon A.M.,Federal University of Pernambuco | Leme E.M.C.,Herbarium Bradeanum | Weising K.,University of Kassel
Plant Systematics and Evolution | Year: 2014

The genus Dyckia (Bromeliaceae) comprises more than 150 terrestrial or epilithic species with a strongly xeromorphic habit. Most of its members belong to the azonal rock vegetation of Neotropical savannas and forests of Brazil and adjacent countries. Dyckia is relatively species-rich compared with its closest relatives Encholirium (27 species) and Deuterocohnia (17 species). Here, we present the first molecular phylogenetic analysis of Dyckia using DNA sequence data from six plastid loci (matK gene, rps16 intron, petD intron, rpl32-trnL, rps16-trnK and trnD-trnT) and a portion of the nuclear gene phyC. A total of 124 accessions were included, corresponding to 79 taxa from six genera. Phylogenetic trees were generated using parsimony, likelihood and Bayesian methods. DNA sequence variation among Dyckia species turned out to be extremely low, and phylogenies were poorly resolved. The monophyly of Dyckia is supported, whereas evidence is provided that Encholirium is paraphyletic. Based on a dated plastid DNA tree, Dyckia experienced a recent radiation starting around 2.9 million years ago. Four major clades could be identified that roughly correspond to the geographic origin of the samples. A parsimony network based on plastid DNA haplotypes shows a star-like pattern, indicating recent range expansions. Our data are compatible with a scenario where Dyckia and Encholirium diverged in northeastern Brazil, whereas one lineage of Dyckia dispersed to southern Brazil from where a rapid colonization of suitable habitats was initiated. We discuss our results in relation to species delimitation in Dyckia. © 2014 Springer-Verlag Wien.

Heller S.,Senckenberg Institute | Heller S.,Goethe University Frankfurt | Leme E.M.C.,Herbarium Bradeanum | Schulte K.,James Cook University | And 3 more authors.
Systematic Botany | Year: 2015

Genetic concepts within the Bromelioideae are highly problematic, in particular within the tank-forming "core bromelioid" clade. Previous molecular studies showed that the largest genus, Aechmea, and allied genera are polyphyletic and require revision. Here we focus on one group within the Aechmea alliance, the Portea/Gravisia group. To assess whether species of this group form a distinct lineage within the core bromelioid clade, and to clarify generic limits and interspecific relationships within the group, we generated and analyzed amplified fragment length polymorphisms (AFLP). In total, 69 species were sampled, including 26 species previously assigned to the Portea/Gravisia group. Neighbor joining, maximum likelihood and Bayesian analyses of the AFLP data consistently retrieved the Portea/Gravisia group as a monophyletic clade with several subclades, comprising species from the genera Aechmea, Canistrum and Portea. The phylogenetic distribution of polyporate pollen of the resulting trees indicates this character state arose once within the core bromelioids and thus can be regarded as a synapomorphy for the Portea/Gravisia clade. Further, our study shows that within the Portea/Gravisia group, subclades are characterized by petal color and geographic distribution. Thus, the present study is a further advance in the challenging task of elucidating phylogenetic relationships within the core bromelioids as the basis for a revised taxonomy of this ecologically important group. © Copyright 2015 by the American Society of Plant Taxonomists.

Leme E.M.C.,Herbarium Bradeanum | Till W.,University of Vienna | Kollmann L.J.C.,Museu de Biologia Prof. Mello Leitao | De Moura R.L.,Federal University of Rio de Janeiro | Ribeiro O.B.C.,Federal University of Viçosa
Phytotaxa | Year: 2014

The authors describe and illustrate 14 new Bromeliaceae species: Aechmea avaldoana, Ae. gregaria, Ae. timida, Alcantarea lanceopetala, A. nana, A. recurvifolia, Billbergia matogrossensis, Bromelia amplifolia, Cryptanthus walkerianus, Encholirium viridicentrum, Vriesea bifida, V. lilliputiana, V. magnibracteata and V. tubipetala. © 2014 Magnolia Press.

Forzza R.C.,Jardim Botanico do Rio de Janeiro | Leme E.M.C.,Herbarium Bradeanum | Ribeiro O.B.C.,Federal University of Viçosa
Nordic Journal of Botany | Year: 2012

Two new species of Encholirium from the Espinhaço range, restricted to the Diamantina plateau of Minas Gerais state, Encholirium pulchrum Forzza, Leme & O. B. C. Ribeiro and Encholirium diamantinum Forzza, are described and illustrated, and their morphological characters are discussed and compared to those of close relatives. © 2012 The Authors. Nordic Journal of Botany © 2012 Nordic Society Oikos.

Leme E.M.C.,Herbarium Bradeanum | Ribeiro O.B.C.,Federal University of Viçosa | Miranda Z.J.G.,Embrapa Cerrados
Phytotaxa | Year: 2012

We describe and illustrate 10 new Dyckia species from the Brazilian states of Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais and Paraná: Dyckia acutiflora, D. areniticola, D. formosensis, D. glabrifolia, D. gouveiana, D montezumensis, D. pottiorum, D. rondonopolitana, D. secundifolia and D. walteriana. The morphological affinities of the new taxa are also discussed. © 2012 Magnolia Press.

Forzza R.C.,Jardim Botanico do Rio de Janeiro | Leme E.M.C.,Herbarium Bradeanum
Phytotaxa | Year: 2015

Encholirium is an exclusively Brazilian genus of Bromeliaceae that occurs principally in the South American dry diagonal, with only a few species found on inselbergs within the Atlantic Forest. The center of diversity of the genus falls within the Campos Rupestres of the Espinhaço Range of the state of Minas Gerais, followed by rocky outcrops found within the Caatinga and Cerrado biomes. Three new species are described and illustrated, two of which occur on limestone outcrops in western Bahia (Encholirum splendidum and Encholirium fragae), while the third, Encholirium kranzianum, occurs in the Campos Rupestres of the Espinhaço Range of Minas Gerais. © 2015 Magnolia Press.

Leme E.M.C.,Herbarium Bradeanum | Kollmann L.J.C.,Av. Jose Ruschi
Phytotaxa | Year: 2013

We describe and illustrate 14 miscellaneous new Bromeliaceae species from the Brazilian states of Bahia, Espírito Santo, Minas Gerais, Rio de Janeiro and São Paulo: Aechmea ituberaensis, A. pendulispica, Alcantarea acuminatifolia, A. occulta, Cryptanthus aracruzensis, C. ilhanus, C. rigidifolius, C. tabuleiricola, C. viridipetalus, Neoregelia desenganensis, N. insulana, N. watersiana, Vriesea saltensis, and V. sanctaparecidae. The morphological affinities of the new taxa are also discussed. © 2013 Magnolia Press.

Leme E.M.C.,Herbarium Bradeanum
Phytotaxa | Year: 2015

The author describes and illustrates two new outlier species in Bromeliaceae, Orthophytum roseolilacinum and O. vasconcelosianum, from Minas Gerais state, Brazil, which are members of the “Cryptanthoid complex”. The morphological affinities and discordant features in relation to the conceptual boundaries of the genus are also discussed. © 2015 Magnolia Press.

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