Hoverdenia speciosa Nees

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

DISTRIBUTION.— Mexico (Hgo., Qro., S.L.P., Tamps.).

HABITAT.— Thornscrub.

ELEVATION.— 20–400 meters.

NOTES.— A description of Hoverdenia speciosa (Fig. 2K) was provided by Daniel and Acosta C. (2003), and its phylogenetic relationships based on molecular sequence data were discussed by Kiel and McDade (2014). This uncommon species is rare in Tamaulipas, where it reaches the northern limit of its distribution.

REPRESENTATIVE SPECIMENS.— Cerca de la presa derivadora Los Alazanes ( La Patria es Primero), P. Hiriart et al. 656 (ENCB, UAT); Mpio. Jiménez, 2 km SW de la presa Las Alanzas, F. Medrano et al. 2823 (MEXU); Soto la Marina, H. Viereck 1066 (US).