Schizanthus lacteus Phil., Fl. Atacam.: 45. 1860

Morales-Fierro, Vanezza, Munoz-Schick, Melica & Moreira-Munoz, Andres, 2020, Synopsis of Schizanthus Ruiz & Pav. (Solanaceae), a genus endemic to the southern Andes, PhytoKeys 154, pp. 57-102 : 57

2. Schizanthus lacteus Phil., Fl. Atacam.: 45. 1860 Fig. 2A-D

Schizanthus sanromanii Phil., Anal. Univ. Chile 91: 126. 1895, as " san romani ".

Type.

Chile. Antofagasta: In deserto Atacama ad Hueso Parado, Dec 1853, R.A. Philippi s.n. (holotype: SGO! [SGO000004524 acc. #055390]).

Key characters.

In general, the corolla is entirely white, but it can vary from blue to lilac. Sometimes it has purple spots or veins on the upper lip or is purple throughout the corolla without any drawings. Leaves linear or lanceolate but lobed at margins. Like S. integrifolius and S. candidus , this species shows a reduced lower lip as compared to the upper lip.

Distribution.

Endemic to Chile, in the coast of the Region of Antofagasta (Province of Antofagasta, 23°30'-26°0' lat. S). 20-900 m a.s.l.

Habitat.

Schizanthus lacteus is part of the lomas vegetation and grows in the fog (camanchaca) zone, on steep hillsides and among rocks alongside watercourses; in gravel soil or coarse sand.

Conservation.

Chile. Antofagasta: Morro Moreno National Park, La Chimba National Reserve, Paposo Norte Natural Monument.

Selected specimens examined.

Chile. Antofagasta: [Antofagasta Province] Península Moreno, cerro al O de Juan López, 23°30'S, 70°34'W, 600 m a.s.l., 18 Oct 1992, G. Baumann 25 (CONC, SGO); El Rincón, just north of Paposo, along trail to old Paranas Mine, 7 Dec 1925, I.M. Johnston 5480 (F, US); Bajada a Caleta El Cobre, 24°15'S, 70°33'W, 1 Oct 1987, S. Teillier 492 (CONC, SGO); Cachinal, quebrada frente a la playa, 25°10'S, 70°25'W, 80 m a.s.l., 14 Sep 1994, L. Loyola 94-12 (CONC); Paposo, entrada a la Qda. Los Peralitos, 25°1'57"S, 70°26'30.3"W, 490 m a.s.l., 30 Sep 2005, M. Muñoz 4608 (SGO).

Figures

Figure 2. A distribution of Schizanthus lacteus B examples of S. lacteus in La Chimba National Reserve C Quebrada Peralito D Paposo E distribution of Schizanthus candidus F illustration of S. candidus published with the description of the species (Lindley 1843) G example of S. candidus in Quebrada de Carrizal H distribution of Schizanthus integrifolius I examples of S. integrifolius in Embalse Santa Juana J Rio Cachitos K Alto del Carmen. Photos by M. T. Eyzaguirre (B-D, I, J), A. Moreira-Munoz (G), S. Moreira (K).