Vascular flora of Santa Fe province: Ranunculaceae

LUSARDI, M.; L.A. GALETTI; L.J. OAKLEY; R. GARCÍA; D.E. PRADO

Rosario

Congreso; XXV Reunión Biología de Rosario; 2005

Sociedad de Biología de Rosario

The family Ranunculaceae, belonging in the order Ranales, comprises some 1500 species of wide world distribution, mainly herbs with numerous stamens and free carpels. In Argentina the family Ranunculaceae includes 52 species and 8 genera, though only three genera are present in Santa Fe: Anemone L., Clematis L. y Ranunculus L.  The present work contributes to the knowledge of this family providing keys to the identification of different taxa based on morphological characters and a map of their ecological and geographical distribution. The methods consist of a thorough bibliographical review, consultation of national herbaria with important collections of the province (SF: Esperanza; SI: San Isidro; UNR: Rosario), field work experience of the authors and lab work to confirm their identity. The preliminary results show that in Santa Fe only three genera, seven species and three varieties are found. For the genera Anemone L. and Clematis L. only one species each was found: Anemone decapetala Ard. var. foliolosa Eichler and Clematis montevidensis Spreng. The genus Ranunculus L. includes five species (one with three varieties): Ranunculus apiifolius Pers., R. bonariensis Poir. var. bonariensis, R. bonariensis Poir. var. phyteumifolius (A. St.-Hil.) Hicken ex Lourteig, R. bonariensis Poir. var. trisepalus (Gillies ex Hook. & Arn.) Lourteig, R. cymbalaria Pursh, R. flagelliformis Sm. y R. platensis Spreng. Taxonomic information, illustrations and a distribution map are provided.