Taxonomic and Photographic Guide to the Acanthaceae of Tamaulipas, Mexico Author Daniel, Thomas F. Department of Botany, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, California 94118, U. S. A. tdaniel@calacademy.org Author García-Morales, Leccinum J. Herbario, Departamento de Posgrado e Investigación, Instituto Tecnológico de Ciudad Victoria, Blvd. Emilio Portes Gil 1301, Cd. Victoria, Tamaulipas, México; Author Mora-Olivo, Arturo Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipas, División del Golfo 356, Cd. Victoria 87019, Tamaulipas, México; text Proceedings of the California Academy of Sciences 2021 2021-09-30 67 6 185 228 journal article 10.5281/zenodo.11513051 0068-547X 11513051 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 ).