Helieae
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Are stem nectaries common in Gentianaceae Juss.?
ABSTRACT Extrafloral nectaries (EFNs) are specialized structures that produce and release nectar and are located on leaves, cotyledons and, more seldomly, stems. Peculiar leaf nectaries have been described for thirty-three Neotropical species of Gentianaceae, while stem nectaries have been reported for only nine. The aim of this study was to verify the occur
Acta Bot. Bras.. Publicado em: 13/03/2017
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2. Systematics of Helieae Gilg (Gentianaceae) / Sistemática de Helieae Gilg (Gentianaceae)
Helieae, one of the six Gentianaceae tribes, comprises about 23 genera and over 200 species found exclusively in the Neotropics. It is a highly diverse assemblage of plants, which have traditionally been problematic regarding generic circumscriptions. Several Helieae genera were understudied and phylogenetic relationships within the tribe were unclear. On th
Publicado em: 2009
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3. Morphoanatomical characterization of Gentianaceaes species from cerrado and campo rupestre in Minas Gerais / Caracterização morfoanatômica de espécies de Gentianaceae ocorrentes em áreas de cerrado e de campo rupestre em Minas Gerais
The family Gentianaceae presents between 1600 and 1700 species predominantly herbaceous. In Brazil, 25 genera of this family occur mainly in the Cerrado and campos rupestres. The species are included into 6 tribes and 86 genera. The tribe Chironieae presents around 159 species distributed into 23 genera, such as Schultesia and Deianira. The tribe Helieae exh
Publicado em: 2008