Comparative wood anatomy of species of Psychotria L. (Rubiaceae) in Atlantic Rainforest remnants of Rio de Janeiro State, Brazil
AUTOR(ES)
Marques, Jonas B. C., Callado, Cátia H., Rabelo, Guilherme R., Silva Neto, Sebastião J. da, Cunha, Maura da
FONTE
Acta Bot. Bras.
DATA DE PUBLICAÇÃO
2015-09
RESUMO
ABSTRACTPsychotria is the largest Rubiaceae genus and one of the most abundant in the Atlantic Rainforest of Rio de Janeiro State. The present work aims to characterize and compare the wood of nine of these species. ThePsychotria wood were characterized by: slightly distinct growth rings; diffuse porosity; solitary vessels or on radial multiples of 2-6 or clusters of 3-5 vessel elements, with terminal and lateral simple perforation plates and vestured and alternate intervessel and vessel-ray pits; septate fiber-tracheids; and rare axial parenchyma. Although, the wood anatomy of thePsychotria may be considered homogeneous, the statistical analyses, based on qualitative and quantitative features, allowed the segregation of the species and indicated the importance of habit (arboreous or shrubby) on the wood anatomy of the species. It is worth mentioning that the sampling was realized in only one studied site (Ilha Grande), which contributed to the conclusion that the wood characteristics are more related to the specificities of each studied taxon than to with environmental variations.
Documentos Relacionados
- Herpetofauna of an Atlantic rainforest area (Morro São João) in Rio de Janeiro State, Brazil
- Population ecology of Psychotria suterella Mull. Arg. (Rubiaceae) in fragmented Atlantic rainforest landscape
- Pollen morphology of some species of Spermacoceae s.s. (Rubiaceae) of the Atlantic Forest, Rio de Janeiro, Brazil
- Fenologia e biologia reprodutiva de cinco especies de Psychotria L. (Rubiaceae) em um remanescente florestal urbano, Araguari, MG
- Morfologia floral comparativa de Psychotria ipecacuanha (Brot.) Stokes (Rubiaceae) nas florestas Amazônica e Atlântica