Ruellia hookeriana (Nees) Hemsl.

PHENOLOGY.— Flowering: March–April; fruiting: March–April.

DISTRIBUTION.— Mexico (Ags., Chis., Gro., Gto., Jal., Méx., Mich., Mor., Nay., Oax., Pue., Qro., S.L.P., Sin., Tamps., Ver., Zac.), Central America.

HABITAT.— Unknown.

ELEVATION.— 15–325 meters.

NOTES.— Daniel (1995) and Daniel and Acosta C. (2003) provided descriptions of this species (Fig. 5C), which reaches its northeasternmost distribution and is rare in Tamaulipas.

REPRESENTATIVE SPECIMENS.— Mpio. Victoria, Ejido Vicente Guerrero, Cañón de La Peregrina, cruce del río, L. García-Morales s.n. (ITCV); Mpio. Xicoténcatl, 3.5 km N de Ejido Ojo de Agua, L. García-Morales s.n. (ITCV); vic. of Tampico, E. Palmer 215 (CAS, K, US).