Discomycetes » operculados del Parque Nacional Nahuel Huapí, Argentina

This paper is a continuation of a previous contribution (Darwiniana, 12 (3) : 385-445, 1962). Twenty five species of Operculate Discomycetes are herein recorded, with descriptions of fifteen of them. They are distributed among twelve genera belonging to the families: Helvellaceae, Morchellaceae, Pezizaceae, Humariaceae and Ascobolaceae; the genera Pachyella and Jafnea are recorded for the first time from Argentina. Ten species are new records for this country; a new combination is proposed, namely Lasiobolus pilosus (Fr.) Sacc. var. vaccinus (Boud.) Gamundí (Bas.: Ascophanus pilosus (Fr.) Boud. var. vaccinus Boud.); three new species and a new variety, are described, viz. Galactinia nothofageti, Pachyella dearnessii, Scutellinia hydrogeton and Jafnea tasmanica var. singeri.