Notes on the floral biology, seed morphology and post-seminal development of Vriesea minarum L.B.Sm., an endangered Bromeliaceae of Southeastern Brazil

Vriesea minarum is a bromeliad endemic to the Iron Quadrangle region in Minas Gerais state, Brazil and is currently listed as an endangered species. The aim of our study was to investigate the species floral biology, breeding system, and post-seminal development. Observations and experiments were co...

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Bibliographic Details
Published inJournal of the Bromeliad Society Vol. 66; no. 2; p. 87
Main Authors Lavor, Pamela, Jacobi, Claudia M, Carmo, Flavio F, Versieux, Leonardo M
Format Journal Article
LanguageEnglish
Published Bromeliad Society International 01.04.2016
Subjects
Endangered species
Environmental aspects
Flowers
Seeds
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Summary:Vriesea minarum is a bromeliad endemic to the Iron Quadrangle region in Minas Gerais state, Brazil and is currently listed as an endangered species. The aim of our study was to investigate the species floral biology, breeding system, and post-seminal development. Observations and experiments were conducted in the Rola-Moca State Park. Flowers have morphological characteristics typical for the genus but we discuss the position of the ovary, oversimplified in some papers as superior. Seed set indicates that V. minarum is predominantly outcrossing, but self-compatible as well. The floral biology indicates flower protandry, and suggests a mixed pollination syndrome, as was observed recently in other bromeliads. Due to the survival risk facing this species, we suggest that more studies investigating the potential to preserve germplasm should be conducted, since its seeds appear to have a limited viability. Key words--endemic species, Iron Quadrangle, Rola-Moca State Park, Tillandsioideae
ISSN:0090-8738