Pannoparmelia angustata (Pers.) Zahlbr. (1930: 195)

Elvebakk, A., Bjerke, J. W. & Støvern, L. E., 2014, Parmelioid lichens (Parmeliaceae) in southernmost South America, Phytotaxa 173 (1), pp. 1-30 : 9-10

Pannoparmelia angustata (Pers.) Zahlbr. (1930: 195)

Pannoparmelia angustata belongs to an austral genus of five species with a spongy hypothallus, and the present species is yellowish from usnic acid. A few collections have been reported from the study area by Redón & Quilhot (1977) and Calvelo & Adler (1992), and the latter authors reduced P. anzioides Darb. (type material from the Ushuaia area) to synonomy with P. angustata . It was also reported from Isla Navarino by Etayo & Sancho (2008). According to our own observations it is much more common than indicated by the rather few reports and collections referred to here. In humid areas of Magallanes its most typical habitat is on light-exposed, smooth bark, such as trunks of Nothofagus betuloides in forest margins along bogs.

Selected specimens examined: ARGENTINA. TIERRA DEL FUEGO:. km W of Ushuaia , semishaded Nothofagus forest, 54 ° 49’S, 68 ° 22’ W, Imshaug, H . 55160 & Ohlsson ( S); Ushuaia , 8 May 1896, Dusén, P. ( S) ; Fiordo de Agostini , 22 Feb 1929, Räsänen, V . ( S) .

CHILE. XII REGIÓN DE MAGALLANES: Parque Nacional Torres del Paine , 1 km W of the base of the E slope of Cerro Donoso , 51 ° 15’S, 73 ° 08’W, 70 m, on Nothofagus betuloides in a forest margin, Nov 1995, A . Elvebakk 95:257 ( TROM); near Refugio Zapata , 51 ° 05’S, 73 ° 16’W, 200 m, on Nothofagus betuloides , 28 Feb 1998, Elvebakk, A . 98:258 ( TROM); Bjerke, J . W . 253/98 ( UV) .