Dyschoriste quadrangularis (Oerst.) Kuntze

PHENOLOGY.— Flowering: January, April, July–October; fruiting: September–October.

DISTRIBUTION.— Mexico (Chis., Gto., N.L., Qro., S.L.P., Tamps., Ver.), Central America.

HABITAT.— Oak forest, oak-juniper forest.

ELEVATION.— 50–1555 meters.

NOTES.— Daniel (1995) and Daniel and Acosta C. (2003) provided descriptions of this species (Fig. 2D).

REPRESENTATIVE SPECIMENS.— “ Malpays de Sa. Barbara ” [ Ocampo], Hb. Berlandierianum Texano-Mexicanum 2174 = 754 (GH) ; 19 km E of Tula on rd. to Ocampo, D. Breedlove & B. Anderson 63645 (CAS) ; 13 km E of Tula on rd. to Ocampo, D. Breedlove & B. Anderson 63705 (CAS) ; Mpio. Hidalgo, Puerto Purificación, G. Hinton et al. 24842 (MEXU, TEX) ; 11 mi W of Victoria toward Jaumave, M. Johnston & J. Graham 4129 (TEX) ; 10 mi W of Victoria, Kenoyer & Crum 3405 (A); Tampico, H. Viereck 1078 (US); sierra near San Lucas, Jaumave, von Rozynski 534 (F).