Ophryosporus johnstonii B.L.Rob., Contr. Gray Herb. 77: 4. 1926

Merklinger, Felix F. & Luebert, Federico, 2020, Notes on the genus Ophryosporus (Asteraceae, Eupatorieae) in Chile, PhytoKeys 161, pp. 61-77 : 61

Ophryosporus johnstonii B.L.Rob., Contr. Gray Herb. 77: 4. 1926

Type.

Chile. Region II, Antofagasta: Prov. Antofagasta, dept. Taltal, Aguada del Panul, I.M. Johnston 5424 (holotype: GH [GH00010781, photo!]; isotypes: S [S-R-3810!, S 10-19704!], SGO [SGO59043!]).

This peculiar species is known only from three localities north of the town of Paposo ( Johnston 1929). It is distributed very narrowly within the range of O. triangularis and is sympatric with this latter species. Morphologically, O. johnstonii is very similar to O. triangularis .

Specimens examined.

Chile. Region II Antofagasta: Prov. Antofagasta, vicinity of Miguel Díaz, directly N of quebrada Iscuña, c. 55 km N of Paposo, 24°33'S, 70°33'W, 100-300 m, 15 Dec 1987, M.O. Dillon & S. Teillier 5292 (BONN); vicinity of Aguada de Miguel Díaz, 24°35'S, 1-4 Dec 1925, I.M. Johnston 5310 (SGO059042); vicinity of Aguada Cardón, 24°45'S, 30 Nov 1925, I.M. Johnston 5259 (S); rocky slopes of Aguada Cardón, 24.74173S, 70.54385W, 210 m, 15 Oct 2016, F. Luebert, A. Stoll & T. Böhnert 3384 (BONN, ULS); Aguada Cardón, 24.741717S, 70.542687W, 210 m, 5 Oct 2017, F. Luebert, T. Böhnert & F.F. Merklinger 3950 (BONN, ULS).