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Solanum delicatulum, a species only known to southern Brazil, is reported for the first time for Argentina and Paraguay. The species is described and illustrated, and a discussion about its synonymy is also provided. [ABSTRACT FROM AUTHOR]

Taxonomic survey of Aureliana Sendtner, a small neotropical genus of 5 species: A. fasciculata (Vellozo) Sendt. [with 3 varieties: var. fasciculata, var. tomentella (Sendt.) Barboza et A. T. Hunz. nov. comb., and var. longifolia (Sendt.) A. T. Hunz. et Barboza nov. comb.], A. brasillana (A. T. Hunz.) Barboza et A. T. Hunz. nov. comb., A. tomentosa Sendt., A. velutina Sendt. and A. wettsteiniana (Witas.) A. T. Hunz. et Barboza nov. comb. The 7 taxa grow in Brazil, but 3 of them deserve a special mention: A. fasciculata var. tomentella reaches southeastern Paraguay and Argentina (eastern Misiones); instead A. fasciculata var. longifolia and A. fasciculata var. fasciculata show a rather peculiar distribution because aside of their eastern area, both have been collected in Bolivia (Santa Cruz and Pando). After a discussion on the complicated taxonomical history of the genus, the authors point out its relationships with 6 allied genera of the Solaneae, above all with Capsicum L.; a key to identify these 7 genera is included as well. Each taxon is described together with remarks about their geographical distribution and affinities. Five plates and a map are included in the text. [ABSTRACT FROM AUTHOR]