Gonzalagunia panamensis (Cav.) K. Schum.

Duggena panamensis (Cav.) Standley, Contr. U. S. Nat Herb. 18: 126. 1916.
Buena panamensis Cav. Anal. Hist. Nat. 2: 279. 1800.
Gonzalea eornifolia H. B. K.. Nov. Gen. & Sp. 3: 325. 1819.
Gonzalca panamensis Spreng. Syst. 1: 417. 1825.
Gonzalea leptantha A. Rich, in Sagra, Hist. Cuba 11: 16. 1850.
Gonzalagunia panamensis K. Schumann, in Mart. I'M. Bras. 6 6 : 292. 1889.
Gonzalagunia leptantha Maza. Anal. Soc. Ksp. Hist. Nat. 23: 289. 1894.
Gonzalea Hayesii Wcrnham, Jour. Hot. 51: 219. 1913.
Duggena Hayesii Standley, Contr. U. S. Nat. Herb. 18: 125. 1916.
Duggena leptanlha Standley, Contr. U. S. Nat. Herb. 18: 125. 1916.
Shrub, 0.6-3 meters high, the branches slender, brownish, densely sericeous or strigosc when young; stipules triangular, subulate-acuminate, 3-8 mm. long; petioles 0.3-2.2 cm. long; leaf-blades ovate, ovate-oblong, lance-oblong, or lanceolate, 7-14 cm. long, 1.8-6 cm. wide, usually acute or obtuse at the base, rarely rounded, gradually or abruptly acuminate or longattenuate at the apex, membranaceous, bright-green above, densely or sparsely strigillose or scaberulous or glabrate, the venation plane or prominulous, slightly paler beneath, sparsely or densely setose-pilose or soft-pilose or glabrate, the lateral veins prominent, 5-9 on each side, arcuate, usually ascending at an angle of 50° or less; inflorescence spiciform, usually dense, 8-24 cm. long, short-pedunculate, the cymules 1few-flowered, sessile or subsessile, the pedicels 2 mm. long or shorter, the bracts subulate, 2-3 mm. long; calyx and hypanthium 1.5-2 mm. long, strigillose or short-pilose or glabrate, the 4 calyx-lobes deltoid, obtuse or acute, shorter than the tube; corolla white, 10-17 mm. long, the tube very slender, glabrous or sparsely pilose, the 4 lobes 2-2.5 mm. long, usually pilose outside, sparsely tomentose within; stamens 4, included; style quadrifid; fruit globose, tetracoccous, 3-4 mm. in diameter, fleshy at maturity; seeds dark reddish-brown.
Type locality: Ancon Hill, Panama.
Distribution: Veracruz to Michoacan and Colombia; Cuba and the Isle of Pines.