Results 41 to 50 of about 290 (114)

EVALUACIÓN DE CARACTERES DEL CÁLIZ Y DE LOS ESTAMBRES EN LA TRIBU MERIANIEAE (MELASTOMATACEAE) Y DEFINICIÓN DE HOMOLOGÍAS

open access: yesRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023
Los caracteres del cáliz y de los estambres se han utilizado clásicamente para diferenciar géneros y establecer secciones dentro de géneros en la tribu Merianieae (Melastomataceae), pero no se han analizado integralmente desde el punto de vista de homologías.
Mendoza Cifuentes, Humberto   +1 more
openaire   +2 more sources

Miconia albicans (Sw.) Triana (canela-de-velho), a nova planta tendência do Cerrado brasileiro: contribuição para identificação de espécies e aspectos farmacológicos [PDF]

open access: yes, 2022
Miconia albicans (canela-de-velho) é uma espécie amplamente distribuída no Cerrado. Nos últimos anos suas folhas têm sido amplamente comercializadas para o preparo de chás medicinais. O gênero Miconia apresenta alta diversidade no Cerrado.
Diego Tavares Iglesias   +1 more
core   +2 more sources

Novelties in Meriania (Melastomataceae: Merianieae) from Andean rainforests of Colombia

open access: yesPhytotaxa, 2014
Two new species of Meriania (Melastomataceae: Merianieae) are described from the Andean region of Colombia (Northern Andes) in the departments of Caldas, Cauca and Putumayo. Meriania barbosae, known only from one locality in Selva de Florencia National Park, is characterized by its calyptrate flowers, calyptras with obtuse apex, dimorphic stamens and ...
Humberto Mendoza-Cifuentes   +2 more
openaire   +2 more sources

Melastomataceae nos remanescentes florestais do Parque Estadual do Ibitipoca, Minas Gerais, Brasil [PDF]

open access: yes, 2010
It is presented a taxonomic study of the Melastomataceae family occurring in the forest remnants of Parque Estadual do Ibitipoca, which is located in the southeast of Minas Gerais State, between 800-1.784 m alt.
Barberena, Felipe Fajardo Villela A.   +2 more
core   +2 more sources

A A new species of Graffenrieda (Melastomataceae) from the northern Andes, Caquetá, Colombia, and a key for the Graffenrieda group with calyptrate flowers

open access: yesActa Botanica Mexicana
Background and Aims: Graffenrieda is a Neotropical genus with more than 70 species, mainly distributed in the Guiana Shield and the Andes. This work describes a new species of Graffenrieda and provides a key to identify all species with calyptrate ...
Humberto Mendoza-Cifuentes   +1 more
doaj   +1 more source

Macroevolution of the plant–hummingbird pollination system

open access: yesBiological Reviews, Volume 99, Issue 5, Page 1831-1847, October 2024.
ABSTRACT Plant–hummingbird interactions are considered a classic example of coevolution, a process in which mutually dependent species influence each other's evolution. Plants depend on hummingbirds for pollination, whereas hummingbirds rely on nectar for food.
Elisa Barreto   +22 more
wiley   +1 more source

High floral disparity without pollinator shifts in buzz‐bee‐pollinated Melastomataceae

open access: yesNew Phytologist, Volume 242, Issue 5, Page 2322-2337, June 2024.
Summary Shifts among functional pollinator groups are commonly regarded as sources of floral morphological diversity (disparity) through the formation of distinct pollination syndromes. While pollination syndromes may be used for predicting pollinators, their predictive accuracy remains debated, and they are rarely used to test whether floral disparity
Constantin Kopper   +2 more
wiley   +1 more source

A família Melastomataceae no município de Rio de Contas, Bahia, Brasil [PDF]

open access: yes, 2005
Rio de Contas is located in the southwestern portion of the Chapada Diamantina, Bahia, with 1,052.3 km2 and 600-1,958m in elevation, with several kinds of vegetation.
Santos, Andrea Karla Almeida dos   +1 more
core   +2 more sources

Assessing Calibration Uncertainty in Molecular Dating: The Assignment of Fossils to Alternative Calibration Points [PDF]

open access: yes, 2017
Although recent methodological advances have allowed the incorporation of rate variation in molecular dating analyses, the calibration procedure, performed mainly through fossils, remains resistant to improvements.
Conti, Elena   +4 more
core  

Meriania selvaflorensis (Melastomataceae), una nueva especie lianescente de Colombia [PDF]

open access: yes, 2011
Meriania selvaflorensis (Melastomataceae) from “Selvas de Florencia” National Park of the department of Caldas, Central Mountains, flank of Magdalena River, Colombia, is described and illustrated.
Mendoza-Cifuentes, Humberto
core   +2 more sources

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