Resumo

PETER, Guadalupe. The genus Isostigma (Asteraceae, Heliantheae) in Argentina: two new records and notes on distribution. Darwiniana [online]. 2004, vol.42, n.1-4, pp.207-215. ISSN 0011-6793.

Isostigma dissitifolium and I. speciosum are newly reported for Argentina (Misiones Province). Five species have been previously recorded: I. cordobense, I. crithmifolium, I. hoffmannii, I. molfinianum and I. peucedanifolium. All distributions are updated. I. dissitifolium and I. speciosum are described, illustrated and their geographical distribution is given. A key to differentiate Argentine species of Isostigma is provided.

Palavras-chave : Isostigma; Flora; Taxonomy; Heliantheae; Asteraceae; Argentina.

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