Gonzalagunia rudis (Standl.) Standl.

Duggena rudis Standley, Contr. U. S. Nat. Herb. 18: 125. 1916.
Branches very slender, brownish, densely whitish-strigose; stipules subulate, 3-6 mm. long; leaves subsessile, the stout petioles 2 mm. long or shorter, the blades ovate or ovateoblong, 3.5-7 cm. long, 1.4-2.5 cm. wide, rounded at the base, subabruptly long-acuminate at the apex or acute, membranaceous, bright-green above, copiously strigose and strigillose, the venation prominulous, paler beneath, densely whitish-strigose when young, glabrate in age except along the veins, the lateral veins prominent, 5 or 6 on each side, arcuate-ascending at an angle of 45° or less; inflorescence interrupted-spiciform, 6-9 cm. long, slender, short-pedunculate, the cymules 1-3-flowered, sessile or subsessile, the pedicels 1 mm. long or shorter; bracts linear-subulate, 3 mm. long or shorter; calyx and hypanthium very densely setose-pilose, the 4 calyx-lobes linear-attenuate, 1-2 mm. long; corolla white, 5 mm. long, densely appressedpilose, the tube stout, the lobes one third as long as the tube or shorter; stamens 4; style quadrifid; fruit tetracoccous, depressed-globose, 2.5 mm. broad, densely setose-pilose with subappressed hairs; seeds brown.
Type locality: In shady places along the Chagres River, near El Vigia, Panama.
Distribution: Panama and Colombia.