Results 11 to 20 of about 145 (94)

Palynotaxonomy of Vernonanthura H. Rob. (Vernonieae, Asteraceae) species from Southeast Brazil [PDF]

open access: yesRevista Brasileira de Botânica, 2009
The present work studied the pollinic characteristics of 22 species of Vernonanthura from Southeast Brazil. The pollen grains were acetolysed, measured, described and ilustrated under light, scanning and transmission electron microscopy. Based on the results, Vernonanthura was considered an euripolinic genus as pollen grains presented distinctive ...
Mendonça, Claudia B. F.   +3 more
openaire   +4 more sources

Palynotaxonomy of Calea sect. Meyeria (Asteraceae: Neurolaeneae) [PDF]

open access: yesPalynology, 2023
Calea comprises 157 species that occur in the Neotropics. The genus is organized into eight subgenera and 18 sections. Calea sect. Meyeria consists of eight species occurring exclusively in south-central Brazil. In this study, pollen grains from these eight species were sampled from herborized flower buds in pre-anthesis. Pollen samples were acetolyzed,
Simone Cartaxo-Pinto   +6 more
openaire   +3 more sources

Pollen morphology of selected species of Passiflora L. (Passifloraceae) from the Atlantic Forest [PDF]

open access: yesActa Botânica Brasílica, 2015
Pollen grains from twelve species of the Passifloraceae family from the Brazilian Atlantic Forest were analyzed: Passiflora subg. Astrophea (1sp.), P.subg. Decaloba (1sp.) and P.subg. Passiflora (10spp.).
Ana Carolina Mezzonato-Pires   +2 more
doaj   +2 more sources

Palynotaxonomy of the genus Gladiopappus (Dicomeae, Asteraceae) with special emphasis on the exine ultrastructure and mesoapertures [PDF]

open access: yesBlumea - Biodiversity, Evolution and Biogeography of Plants, 2018
The pollen morphology of Gladiopappus vernonioides was studied with transmission (TEM) and scanning (SEM) electron microscopy and with light microscopy (LM). An Anthemoid pattern of exine ultrastructure was found. The pollen morphology of Gladiopappus supports the inclusion of this genus in the tribe Dicomeae and subtribe Dicominae but not in the ...
Pereira Coutinho, A.   +4 more
openaire   +6 more sources

Importance of palynology in the taxonomy of Piptolepis Sch.Bip. (Asteraceae: Lychnophorinae), a genus endemic to Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2022
Lychnophorinae comprises 19 genera and 117 species. Its representatives are found mostly in the rocky grasslands (“campos rupestres”) of Minas Gerais, Bahia, and Goiás States, Brazil.
RAQUEL M.B. SOUZA-SOUZA   +4 more
doaj   +1 more source

Palynotaxonomy of Neotropical species ofDioscoreaL. (Dioscoreaceae)

open access: yesPalynology, 2020
Nineteen Neotropical species of the genus Dioscorea L. were subjected to palynological analysis with the objectives of increasing palynological knowledge and identifying characteristics with taxonomic and phylogenetic value. More specifically, the aim was to identify characters that distinguish species and help to resolve relationships among New World ...
Fernanda da Costa Alzer   +4 more
openaire   +1 more source

Pollen morphology of Acalypha L. (Euphorbiaceae) with emphasis on Brazilian species from Bahia

open access: yesActa Botânica Brasílica, 2022
We investigated the pollen morphology of eight species of Acalypha occurring in Bahia State, Brazil. Flower buds were collected from specimens deposited in the CEPEC and HUEFS herbaria.
Airã de Lima Bomfim   +2 more
doaj   +1 more source

Flora polínica da Área de Proteção Ambiental Serra Branca/Raso da Catarina, Jeremoabo, Bahia, Brasil – Família: Passifloraceae [PDF]

open access: yes, 2020
This study aims to morphologically characterize pollen grains of the Passifloraceae family, occurring in the Serra Branca/Raso da Catarina Environmental Protection Area (EPA), Jeremoabo, Bahia, Brazil, in order to complement the palynological and ...
Andrade, Brunelle Ramos   +4 more
core   +2 more sources

Palynotaxonomy of species of Dendrophorbium (Asteraceae: Senecioneae) occurring in Brazil

open access: yesPalynology, 2023
This article presents a pollen study of 13 species of Dendrophorbium (Asteraceae: Senecioneae) occurring in Brazil. Dendrophorbium has species distributed in the South and Southeast regions of the Brazilian territory that were previously grouped in Senecio Myriocephalus sect.
Thayná Rosa Batista Martins   +5 more
openaire   +1 more source

Pollen morphology of Carapa species (Meliaceae) from the Brazilian Amazon [PDF]

open access: yesActa Amazonica, 2016
The crabwood (Carapa) represents an important source of natural resources. The objective of this work was to study the pollen morphology of the three species of Carapa (Meliaceae) registered in the Brazilian Amazon.
Alexsandro ZIDKO   +6 more
doaj   +2 more sources

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