Data/hora: 09/06/2024 11:30:41

Provedor de dados: | Revista Brasileira de Botânica
País: | Brazil
Título: | Clonal growth and dispersal potential of Leiothrix flagellaris Ruhland (Eriocaulaceae) in the rocky grasslands of Southeastern Brazil
Autores: | Figueira,José Eugênio Côrtes; Del Sarto,Mário César Laboissiérè.
Data: | 2007-12-01
Ano: | 2007
Palavras-chave: | Canopy development; Clonal reproduction; Demography; Dispersal; Pseudovivipary.
Resumo: | Leiothrix flagellaris is a small clonal plant that grows in sandy/rocky, nutrient poor soils in the rocky grasslands ("campos rupestres") of southeastern Brazil. In the rainy season most of their flower heads differentiate into small rosettes, produced by pseudovivipary, and connected to the mother-plant by flexible, elongated stalks that can reach up to 90cm. Most of these rosettes remain suspended over rocks or over the sparse herbaceous surrounding vegetation, while a few arch low enough to come into contact with the surrounding soil and take root. These suspended rosettes can reach diameters comparable to currently rooted and reproductively active rosettes produced during previous reproductive periods. As the rooted rosettes grow up, their potential to generate and disperse new pseudoviviparous rosettes increase rapidly. This unusual guerrilla strategy of L. flagellaris seems to congregate a suit of traits that promote a fast increase in photosynthetic area and improve recruitment, thereby helping to circumvent dispersal and establishment failures in its severe environment.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000400012
Editor: | Sociedade Botânica de São Paulo
Relação: | 10.1590/S0100-84042007000400012
Formato: | text/html
Fonte: | Brazilian Journal of Botany  v.30 n.4 2007
Fonte: | info:eu-repo/semantics/openAccess