Ophryosporus heptanthus (Schultz-Bip.) R.M.King & H.Rob., Phytologia 58: 528. 1985

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

Ophryosporus heptanthus (Schultz-Bip.) R.M.King & H.Rob., Phytologia 58: 528. 1985

Basionym: Eupatorium heptanthum Schultz-Bip., Bonplandia 4: 50 and 54. 1856. Eupatorium origanoides Meyen & Walp., Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19 (Suppl. material 1: Table S1): 257. 1843, nom. illeg., non Kunth (1818: 89) [ Cronquistianthus origanoides (Kunth) R.M.King & H.Rob., Phytologia 23: 411. 1972].

Ophryosporus origanoides Hieron., Bot. Jahrb. Syst. 22: 707. 1897. Replacement name for Eupatorium origanoides Meyen & Walp. Type: Peru. Dept. Tacna: In planitie circa Tacoram, Apr. 1831, Meyen s.n. (B [probably destroyed]; F neg. 14714!).

Ophryosporus origanoides var. microcephala [as microcephalus] Hieron., Bot. Jahrb. Syst. 22: 708. 1897. Type: Bolivia. Cochabamba: 4000 m, 26 Mar 1892, C.E.O. Kuntze s.n. (lectotype, selected by Plos and Sancho (2013: 338): NY [NY00230826]; GH [GH00010786, photo!]).

Type.

Peru. Dept. Puno: “Pérou, sur les montagnes, aux environs de la ville de d’Azángaro”, W. Lechler 1751 (lectotype, selected by Plos and Sancho (2013: 336): P [P00742426, photo!]; isolectotypes: GOET [GOET001506, photo!], K [K000542525, photo!], P [P00742425, P00742428, photo!], W [W0018472, photo!]).

This species is confirmed for Chile and has been collected by the authors near the village of Chusmiza, at the same locality as Zöllner 2997 (L, LP) and Gardner & Knees 6534 (E, SGO). The pappus setae of this species are formed by conspicuous yellowish-white setae of c. 4 mm in length. At this locality, O. heptanthus grows in local sympatry with O. pinifolius . However, the pappus of the latter is formed by minute squamellae and the two taxa are thus readily distinguishable. Plos (2012) cited specimen Zöllner 2997 twice, once for O. heptanthus (LP) and a second time for O. hoppii (CONC). It is possible, that having collected both specimens at the same locality where they occur sympatrically, Zöllner mistook them for a single species and only later at the two herbaria they were identified as belonging to two distinct taxa. We could not have access to the latter material at CONC, but we assume that it corresponds either to O. heptanthus or O. pinifolius .

Specimens examined.

Bolivia. La Paz: Prov. Bautista Saavedra, Chajaya, a few km from Charazani, 15°13'S, 69°01'W, 3500 m, 30 Mar 1985, J.C. Solomon 13294 (U [U1145280]). Prov. Omasuyos, Viciniis Ochachache [Achacachi], 4000 m, Jan-Apr 1859, G. Mandon 260 (S). Prov. Murillo, 4 km up the Río Achumani from Calacoto (La Paz), 16°30'S, 68°02'W, 3600 m, 11 Apr 1986, J.C. Solomon 15271 (U [U1145281]); 1 km NW of Ovejuyo, 16°32'S, 68°03'W, 3700-3900 m, 2 Apr 1982, J.C. Solomon 7453 (U [U1145279]).

Chile. Region I Tarapacá: Prov. Tamarugal, Chusmiza, 3200 m, 10 Jan 1969, O. Zöllner 2997 (L125727); quebrada de Chusmiza, 19°41'4.9"S, 69°11'01.9"W, 3350 m, 18 Feb 2003, M.F. Gardner & S.G. Knees 6534 (E, SGO); Chusmiza, 19°40'48.2"S, 69°10'49.5"W, 3380 m, 27 Apr 2008, M. Muñoz & A. Moreira 4940 (SGO157269); at the entrance of the Andean village Chusmiza, 19.67880S, 69.17956W, 3392 m, 2 Oct 2019, F.F. Merklinger, F. Luebert & J. Ruhm 2019-20 (BONN, EIF, K).

Peru. Dept. Ayacucho: Prov. Lucanas, a few km from Puente Toro Muerte, 14°42'55.1"S, 74°32'44.7"W, 3589 m, 21 Mar 2019, M. Weigend 9841/19-32 (BONN). Dept. Cusco: Prov. Cusco, alrededore Cusco, 17 May 1958, A.L. Cabrera & H.A. Fabris 13536 (S); Río Blanco, 1500 ft [450 m], 8-19 May 1922, J.F. Macbride & W. Featherstone 718 (S). Dept. Puno: Prov. Puno, Checayani, NE of Azángaro, 3980 m, 28 Mar 1957, H. Ellenberg 461 (U [U1145288]); Huerta N of Puno, 3840 m, 22 Mar 1957, H. Ellenberg 238A (U [U1145284]); Huerta N of Puno, 4100 m, 22 Mar 1957, H. Ellenberg 292 (U [U1145286]); Huerta N of Puno, 3840 m, 22 Mar 1957, H. Ellenberg 238 (U [U1145285]). Prov. Lampa, Pucará, 3900 m, 22 Aug 1957, H. Ellenberg 2753A (U [U1145287]). Dept. Moquegua: Prov. de Mariscal Nieto, Carumas, 3200 m, 21 Feb-6 Mar 1925, A. Weberbauer 7333 (S); Prov. General Sánchez Cerro, Puquina, outside Puquina towards Arequipa, 16°36'39.4"S, 70°11'30.8"W, 3174 m, 29 Mar 2019, M. Weigend 9994/19-182 (BONN).