Nothofagus pumilio
(Poepp. & Endl.) Krasser
BCRU 3938. Place of collection: Argentina; Tierra del Fuego; Río Grande; Yawen. Date of collection: 13 April 1997. Associated organism: Protounguicularia barbata. Collector: Gamundí de Amos, I.J.; Giaiotti, A.L..