Results 21 to 30 of about 145 (94)
Palynotaxonomy of Wissadula Medik. (Malvaceae: Malvoideae) in Brazil
Abstract Malvaceae is divided into nine subfamilies, one of which is Malvoideae. WissadulaMedik., a genus within the Malvoideae, is divided into two sections according to mericarp morphology and the number of ovules per locule. Species belonging to the section Euwissadula have 3 or rarely 2 ovules, whereas species belonging to the section ...
Gabriela Conde de Mello Alves +3 more
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Palynotaxonomy of Brazilian species ofPolygalasubgenusHebeclada [PDF]
This study used pollen morphology to address taxonomic controversies related to several species belonging to subgenus Hebeclada of the genus Polygala (Polygalaceae). According to the last traditionally accepted revision of this subgenus, it comprises 40 species.
ANA CRISTINA ANDRADE DE AGUIAR +3 more
openaire +1 more source
Pollen morphology of the Polish species of the genus Sorbus L.
This paper presents the results of the study on pollen morphology of five Polish species of the genus Sorbus L. (S. aria (L.) Crantz, S. aucuparia L. Emend. Hedl., S. chamaemespilus (L.) Crantz, S. intermedia (Ehrh.) Pers. and S. torminalis (L.) Crantz).
Leszek Bednorz +3 more
doaj +1 more source
É apresentado o estudo dos grãos de pólen das espécies Neoregelia laevis (Mez) L.B. Sm., Nidularium angustibracteatum Leme, N. billbergioides (Schult. f.) L.B. Sm., N. burchellii (Baker) Mez, N. meeanum Leme, Wand. & Mollo, N. procerum Lindm.
Bianca Alsina Moreira +2 more
doaj +1 more source
Pollen morphology of Myrtaceae visited by social bees [PDF]
This study aimed to characterize species of Myrtaceae belonging to genera already identified in the pollen spectrum of beehive products of social bees, describing pollen grains morphology and correlating with taxonomic differences the species reported in
Carvalho, Carlos Alfredo Lopes de +1 more
core +2 more sources
Chromosomal studies, pollen morphology and fertility in Dioscorea ayardei (Dioscoreaceae) [PDF]
Antecedentes y Objetivos: La gran variabilidad de caracteres en Dioscorea dificultan la delimitación de las especies, por lo que estudios complementarios son necesarios para lograr su identificación.
Andrada, Aldo R. +4 more
core +2 more sources
Pollen types of Sapindaceae from Brazilian forest fragments: apertural variation [PDF]
Morphological variations in angiosperm pollen grains may aid in the differentiation of families, genera and species. Sapindaceae pollen morphology holds promise for the recognition of taxa of this cosmopolitan family, which is well distributed in ...
Talita Kely Bellonzi +4 more
doaj +2 more sources
The genus Piptadenia Benth.: pollen morphology and taxonomic implications [PDF]
The genus Piptadenia Benth. has undergone several changes in its circumscriptions throughout its history, given the difficulty of its phylogenetic placement.
Ana Flávia Trabuco Duarte +4 more
doaj +1 more source
Pollen morphology of Brazilian species of Verbesina L. (Heliantheae - Asteraceae) [PDF]
There are nine species of the plant genus Verbesina in Brazil, which are distributed in the Northeast, Center-West, Southeast and South regions of the country.
Cavalcanti, Taciana Barbosa +3 more
core +1 more source
Contribuição à morfologia polínica de plantas medicinais apícolas (Euphorbiaceae Juss. & Lamiaceae Martinov) [PDF]
Em função da variabilidade dos tipos polínicos, sua descrição morfológica constitui suporte para diversas finalidades e estudos. Estão descritas neste trabalho 13 espécies polínicas de interesse apícola, sendo seis da família Euphorbiaceae (Euphorbia ...
Denise Monique Dubet da Silva Mouga +1 more
core +2 more sources

