Parmeliopsis hyperopta (Ach.) Arnold (1881: 117)

Elvebakk, A., Bjerke, J. W. & Støvern, L. E., 2014, Parmelioid lichens (Parmeliaceae) in southernmost South America, Phytotaxa 173 (1), pp. 1-30 : 10-11

Parmeliopsis hyperopta (Ach.) Arnold (1881: 117)

Calvelo & Adler (2001) reported the species from several localities in Argentinian Tierra del Fuego and stated that no localities of this species had been reported from South America before. However, as shown under the comment on Imshaugia aleurites among the rejected species (see below), Parmeliopsis hyperopta was first reported from Argentina by Räsänen (1932) under the incorrect name Parmelia pallescens . Galloway & Quilhot (1998) listed Parmeliopsis hyperopta from Chile, however, the cited sources do not indicate localities in Chile. We now list its first confirmed localities in this country, in addition to another four localities in Argentina. Most collections are from Nothofagus forests, but three of the collections (Santesson 7549, Elvebakk 99:1124, 14:034) are on eroded lignum. The lignicolous habitat resembles acidic epiphytic occurrences in the Northern Hemisphere.

Specimens examined: ARGENTINA. TIERRA DEL FUEGO: Ushuaia, Rio Pipo (Rio Alej), on Nothofagus antarctica in a swamp in a Nothofagus pumilio forest, 23 Jan 1940, Santesson, R. 430 (S); Ushuaia. In truncis frutesc., 5 May 1896, Dusén, P. 246 (S); Valle Lasifashaj (Larsiparchie), Las Cotorras (about 20 km ENE of Ushuaia), c. 650 m, on Nothofagus pumilio in a Nothofagus pumilio forest, on lignum, 10 Nov 1940, Santesson, R. 877 (S); Canal Beagle, Lapataia, east of Río Roca, on a decaying Nothofagus pumilio trunk. Santesson, R. (S); Fuegia Media, Estancia Carmen, Puesto Millaldeo, 16 Jan 1929, Roviainen, H. (S); CHILE. XII REGIÓN DE MAGALLANES: Rio Rubens, near Hotel Río Rubens, on Nothofagus antarctica in a Nothofagus antarctica forest, 19 Jan 1941, Santesson, R. 5580a, b. (S); 5581 (S); Morro Chico, on the NE side of the gorge across the volcano, 52 ° 03.47’S, 71 ° 25.03’W, 233 m, on an old and eroded trunk of Nothofagus antarctica lying on the ground between Festuca gracillima tussocks, 3 Jan 2014, Elvebakk, A. 14:034 (MAF, TROM); Punta Arenas, 16 Dec 1895, Dusén, P. 56 (S); Tres Puentes, on the ground in a Nothofagus betuloides forest, 24 Apr 1940, Santesson, R. 1876 (S); Cerros Mina Rica, 450─ 500 m, on Nothofagus pumilio in a Nothofagus pumilio forest, 24 Dec 1940, Santesson, R. 5261 (S); Parque Nacional Torres del Paine, Chorillo de Salmones, 100 m, on a fallen, very old decorticated log of Nothofagus pumilio , 73 ° 12’ W, 51 ° 06’30” S, 4 Dec 1999, Elvebakk, A. 99:1124 (TROM).