Results 41 to 50 of about 267 (144)

Studies in the Neotropical Apocynaceae LI: a new species of Laubertia (Apocynaceae) from Brazil

Anales del Jardín Botánico de Madrid, 2017
A new species of Laubertia from Brazil supported by morphological characters and molecular data is described and illustrated. Laubertia brasiliensis sp. nov. is closely related to L.
J. Francisco Morales
doaj   +1 more source

A Revision ofThenardiaH.B.K. (Apocynaceae, Apocynoideae) [PDF]

Lundellia, 1998
Abstract: A revision of the Mexican genus Thenardia H.B.K. is presented. Three species are here recognized: T. chiapensis J. K. Williams, T. floribunda H.B.K., and T. galeottiana Baillon. A complete account of synonymy, and typification is provided, as well as a key to species, photographs of types and pollen, and a distribution map of the species.
openaire   +1 more source

Evolution on the backbone: Apocynaceae phylogenomics and new perspectives on growth forms, flowers, and fruits

American Journal of Botany, Volume 105, Issue 3, Page 495-513, March 2018., 2018
Premise of the Study We provide the largest phylogenetic analyses to date of Apocynaceae in terms of taxa and molecular data as a framework for analyzing the evolution of vegetative and reproductive traits. Methods We produced maximum‐likelihood phylogenies of Apocynaceae using 21 plastid loci sampled from 1045 species (nearly 25% of the family) and ...
Mark Fishbein, Tatyana Livshultz, Shannon C. K. Straub, André O. Simões, Julien Boutte, Angela McDonnell, Abbey Foote   +6 more
wiley   +1 more source

Tropical Refuges with Exceptionally High Phylogenetic Diversity Reveal Contrasting Phylogenetic Structures

International Journal of Biodiversity, Volume 2015, Issue 1, 2015., 2015
Loss of phylogenetic diversity (PD) has gained increasing attention in conservation biology. However, PD is not equally distributed in a phylogeny and can be better assessed when species relatedness (phylogenetic structure: PS) is also considered. Here, we investigate PD and PS in two refuges of biodiversity in northeastern Brazil: the Bahia Costal ...
Lara Pugliesi, Alessandro Rapini, Stephan Koblmüller   +2 more
wiley   +1 more source

Numerical re-assessment of the phenetic relationship between Apocynaceae and Asclepiadaceae [PDF]

Taeckholmia, 2018
Recognition of the Apocynaceae and Asclepiadaceae as one family or as two separate but related families with five subfamilies was for long highly controversial. Raising some of the subfamilies to the rank of family was also disbutable.
A. Khattab, A. El-Kady, A. El-Saied, A. El-Ghamery, Adel El Gazzar   +4 more
doaj   +1 more source

Comparative occurrence of Prestonia R.Br. (Apocynaceae: Apocynoideae)

Scientific Electronic Archives, 2020
Apocynaceae is clearly monophyletic, as indicated by the presence of milky latex and a highly modified gyneum with separate ovaries and a modified stylet head. Prestonia (Apocynoideae / Echiteae), is composed of about 55 species, distributed from Mexico to Argentina, and in Brazil, 24 species occur.
openaire   +1 more source

PHYLOGENY OF APOCYNOIDEAE AND THE APSA CLADE (APOCYNACEAE S.L.)¹

Annals of the Missouri Botanical Garden, 2007
Abstract Phylogenetic relationships were reconstructed among 59 of 77 genera of subfamily Apocynoideae and exemplars of Periplocoideae, Secamonoideae, and Asclepiadoideae (collectively the APSA clade) using sequences from four regions of the chloroplast genome (trnL intron and trnL-trnF spacer, rpl16 intron, rps16 intron, matK and 3′ half of trnK ...
Livshultz, Tatyana, Middleton, David J, Endress, Mary E., Williams, Justin Kirk   +3 more
openaire   +2 more sources

Development and Validation of a Method for the Quantification of an Alkaloid Fraction of Himatanthus lancifolius (Muell. Arg.) Woodson by Ultraviolet Spectroscopy

Journal of Chemistry, Volume 2013, Issue 1, 2013., 2013
For the registration of phytomedicines and their availability to the population, National Agency of Sanitary Surveillance (ANVISA) establishes quality, security, and efficacy parameters, stipulating control requirements similar to those applied to synthetic medicines.
Patrícia M. S. S. Barros, Nádia M. G. de Couto, Andressa S. B. Silva, Wagner L. R. Barbosa, Tingyue Gu   +4 more
wiley   +1 more source

Estudios en las Apocynaceae Neotropicales VI: una nueva especie de Prestonia (Apocynaceae, Apocynoideae) para Brasil Studies in Neotropical Apocynaceae VI: a new species of Prestonia (Apocynaceae, Apocynoideae) from Brazil

Acta Amazonica, 2004
Uma nova espécie de Prestonia R. Br., endêmica dos estados do Acre e Amazonas, Brasil, é descrita e ilustrada e se discute as relações com taxas relacionadas.A new species of Prestonia R.
J. Francisco Morales
doaj   +1 more source

Coléteres foliares e calicinais de Temnadenia violacea (Apocynaceae, Apocynoideae): estrutura e distribuição [PDF]

, 2015
(Foliar and calycine colleters of Temnadenia violacea (Apocynaceae, Apocynoideae): structure and distribution). The present work describes the origin, structure and position of the colleters on vegetative and floral apices of Temnadenia violacea (Vell ...
Castro, Marilia de Moraes, Martins, Fabiano Machado, Kinoshita, Luiza Sumiko   +2 more
core   +1 more source