Ranunculus peduncularis
Sm.
LPS 39531. Place of collection: Argentina; Tierra del Fuego; Ushuaia; Lapataia; Lago Roca, east side. Date of collection: 14 March 1973. Associated organism: Pseudopeziza singularis. Collector: Gamundí de Amos, I.J.; Giaiotti, A.L.; Kikuchi, J..