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Urena Pedersenii, a new species from Goiás, Brazil, is described. [ABSTRACT FROM AUTHOR]

In this paper Stemodia hassleriana Chodat (Plantaginaceae) is reported for the first time for Brazil. Description, illustration, ecological observations of the species and a key to species of Stemodia presently known from Brazil are included. [ABSTRACT FROM AUTHOR]

A new record for argentinian flora, Aristolochia stomachoides Hoehne (Aristolochiaceae) from Misiones province is described and illustrated. Ecological information is given. Its distribution along Paraná River suggests the action of the water as agent of dispersion. [ABSTRACT FROM AUTHOR]

Schwartzia is a small genus of 17 species distributed in wet lowland forests or montane cloud forests from Costa Rica to southern Brazil, and also in the Lesser Antilles; it belongs to the Marcgraviaceae, a Neotropical family. Three species are considered in this paper for Brazil and one of these is described as a new species. The three taxa are endemic to Brazil. Each taxon is described; a key to identification of the species as well as information on distribution and ecology are also provided. [ABSTRACT FROM AUTHOR]

The geographical distribution of Bulnesia sarmientoi is extended to Brazil (Pantanal of Mato Grosso) on the basis of the works of Hoehne (1936) and Prance & Schaller (1982) Published and unpublished reports indicate that Bolivian populations would have bluish flowers. Since Argentine populations, have whitish flowers the possibility of polytypism for flower colour is indicated. [ABSTRACT FROM AUTHOR]