Phylogenetic inference in Rafflesiales: the influence of rate heterogeneity and horizontal gene transfer [PDF]
BACKGROUND: The phylogenetic relationships among the holoparasites of Rafflesiales have remained enigmatic for over a century. Recent molecular phylogenetic studies using the mitochondrial matR gene placed Rafflesia, Rhizanthes and Sapria (Rafflesiaceae ...
Anderson, F E +4 more
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Taxaceoxylon katuatenkum sp. nov. from the Koluel-Kaike formation (lower - middle eocene), Chubut, Argentina: a component of paleogene subtropical forests of Patagonia [PDF]
Se describe en este trabajo un fragmento de tallo silicificado, Taxaceoxylon katuatenkum sp. nov., coleccionado en la localidad Kilómetro 170, al SE de Chubut (Argentina).
Bellosi, Eduardo Sergio +2 more
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Progress and problems in the assessment of flower morphology in higher-level systematics [PDF]
Floral features used for characterization of higher-level angiosperm taxa (families, orders, and above) are assessed following a comparison of earlier (precladistic/premolecular) and current classifications.
Endress, Peter, Matthews, Merran
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Medicinal Flora of the Popoluca, Mexico: A botanical systematical perspective [PDF]
We studied the medicinal plants used by the Popoluca of the Sierra de Santa Marta (eastern Mexico). Using Moerman's method of regression analysis we determined which ethnomedically used taxa are over-represented in the Popolucan pharmacopoeia (e.g ...
Fernando, Ramirez +3 more
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Canopy habitat area effect on the arthropod species densities in the Azores: pondering the contribution of tourist species and other life histories [PDF]
"[…]. We performed a PIAR examining how plant cover area and plant crown structure influence the densities of arthropods in the canopies of one specific island, comparing various distinct natural reserves.
Borges, Paulo A. V., Ribeiro, Sérvio P.
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Branch xylem density variations across Amazonia [PDF]
International audienceMeasurements of branch xylem density, Dx, were made for 1466 trees representing 503 species, sampled from 80 sites across the Amazon basin.
Aguilar, A. +49 more
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Effect of Hydrologic Restoration on the Habitat of The Cape Sable Seaside Sparrow, Annual Report of 2004-2005 [PDF]
The major activities in Year 3 on ‘Effect of hydrologic restoration on the habitat of the Cape Sable seaside sparrow (CSSS)’ included presentations, field work, data analysis, and report preparation.
Cooley, Hillary +8 more
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Phylogenetics of Flowering Plants Based on Combined Analysis of Plastid atpB and rbcL Gene Sequences [PDF]
Following (1) the large-scale molecular phylogeny of seed plants based on plastid rbcL gene sequences (published in 1993 by Chase et al., Ann. Missouri Bot. Gard.
Bayer, Clemens +9 more
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Metabarcoding identification of botanical origin of bee-collected pollen samples: comparison of ITS2 reference database performance before and after enrichment with sequences of bee plant species [PDF]
Mestrdo de dupla diplomação com a High Institute of Biotechnology of MonastirSequence analysis of complex DNA samples is an important approach to monitoring species distribution in biodiversity and population studies.
Ilahi, Wafa
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