Nothofagus betuloides
(Mirb.) Oerst
LPS 41881. Place of collection: Argentina; Tierra del Fuego; Ushuaia; Lapataia; Arroyo Los Castores. Date of collection: 20 February 1982. Associated organisms: Cyathicula chlorosplenioides; Nothofagus pumilio. Collector: Gamundí de Amos, I.J.; Spinedi, H..