Esenbeckia hartmanii Robins. & Fernald

Esenbeckia hartmanii Rob. & Fern. Proc. Am Acad. 30: 115. 1894. A shrub about 2-3 m. in height, with thick twigs, leafy chiefly near the ends; petioles 1-12 mm. long, short-pubescent ; leaves simple, oblong to oblong-elliptic or obovate, entire, 1.6-S cm. long, 0.8-4 cm. broad, rounded or retuse at the apex, somewhat narrowed below to an obtuse or rounded base, thickish and rather rigid, finely reticulate, smooth above, tomentulose and scarcely paler beneath ; flowers not seen ; inflorescence short, terminal ; fruiting pedicels 1-3 together, 1.3 cm. in length or less; mature capsule tuberculately roughened, about 2 cm. in diameter; seeds subglobose, 6.5-7 mm. in diameter, brown or blackish, smooth, the scar white, narrow, linear, 1 mm. in breadth.
Type locality : I,a Tinaja, Sonora. Distribution : Sonora and Sinaloa.