BALDUINIA

Grindelia rupestris A. Bartoli, Tortosa & Marchesi (Asteraceae-Astereae), nova citação para o Rio Grande do Sul

Abstract: The species is here described, illustrated and has its geographical distribution represented in map; it is also set apart from Grindelia buphthalmoides DC., by a dichotomous key. Key words: Grindelia rupestris, Asteraceae, Astereae.

Tagetes osteni Hicken, citação nova para a flora sul-brasileira

Abstract: The occurrence of Tagetes osteni Hicken in presently pointed out to southern brazilian flora. The named species is here described, illustrated and distinguished from Tagetes minuta, by a dichotomous key. Key words: Tagetes osteni, Asteraceae, Tageteae.

Considerações sobre a morfologia foliar de Blepharocalyx salicifolius (H.B.K.) Berg no Rio Grande do Sul

Abstract: Blepharocalyx salicifolius (H. B. K) Berg shows a remarkable variability, especially in the shape and size of leaves. Aside the recognition of this variability, this paper deals to analyze its real ecological significance. Key words: Blepharocalyx salicifolius, leaf morphology, Rio Grande do Sul.

Anatomia do Lenho de Heterothalamulopsis wagenitzii (F. Hellw.) Deble, Oliveira & Marchiori (Astereae-Asteraceae)

Abstract:Anatomical studies on the new genus Heterothalamulopsis Deble, Oliveira et Marchiori were just wanting. The wood of Heterothalamulopsis wagenitzii joins three anatomical features that are common in the Asteraceae: small vessels, in dendritic pattern, only simple perforation plates and paratracheal parenchyma. Spiral thickenings, in vessels, as well as scanty-apotracheal, seldom vasicentric parenchyma and heterogeneous rays, with procumbent, square and upright cells, were also observed. Photomicrographs and quantitative data of anatomical features are also furnished. Key words: Heterothalamulopsis, Asteraceae, Baccharinae, Wood anatomy.

Anatomia da madeira de Escallonia megapotamica Sprengel

Abstract:The wood anatomy of Escallonia megapotamica Sprengel is described and illustrated with photomicrographs, beeing the microscopic features commented with respect to references from the literature. Key-words: Wood Anatomy, Escalloniaceae, Escallonia megapotamica.