208 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
late, 1 to 1.5 mm. long; corolla densly fulvous-puberulent in bud, becoming 
glabrate, the tube 2.2 em. long, ampliate upward, 6 to 7 mm. wide in the 
throat, the lobes rounded, 5 mm. long, spreading. 
Type in the U. S. National Herbarium, no. 764417, collected near San Mateo, 
Costa Rica, August, 1890, by P. Biolley (no. 2656). 
The material available is scanty but sufficient to show the essential charac- 
ters of the plant. H. rorullensis H. B. K. is perhaps the nearest ally, being 
distinguished by a larger corolla which is copiously pilose or villosulous outside. 
Hamelia panamensis Standl., sp. nov. ° 
Tree, 4.5 meters high, with a trunk 10 em. in diameter, the bark gray, the 
branchlets grayish, glabrous; leaves apparently opposite, the petioles about 
5 cm. long, the blades oval or broadly ovate, 11 to 19 cm. long, 6 to 12 em, wide, 
broadly rounded at the base and short-decurrent, acute or short-acuminate at 
the apex, membranaceous, glabrous, bright green, the lateral veins about 12 on 
each side, arcuate-divaricate, the margin plane; inflorescence very ample, much 
branched, 15 cm. wide or larger, pedunculate, the branches slender, elongate, 
glabrous, the flowers sessile, the bractlets subulate, very small; calyx gla- 
brous, 2.5 to 3.5 mm. long, the lobes deltoid, acute; corolla about 2.5 cm, long, 
“glabrous, the tube gradually ampliate upward, 4.5 mm, thick in the throat, the 
lobes ovate, about 6 mm. long, spreading; fruit cylindric, 6 to 7 mm, long, 5- 
celled; seeds brown, foveolate. 
Type in the U. 8S. National Herbarium, no. 678258, collected above Paca, 
Panama, April 16, 1908, by R. S. Williams (no. 744). Another specimen of the 
same collection is in the herbarium of the New York Botanical Garden. 
A well-marked species, related to H. ventricosa Swartz and H. cuprea Griseb., 
natives of Cuba and Jamaica, but differing from them in the very large leaves 
and spreading corolla lobes. 
Casasia jacquinioides (Griseb.) Standl. 
Alibertia jacquinioides Griseb. Cat. Pl. Cub. 123. 1866. 
Casasia parvifolia Britton, Bull. Torrey Club 48: 461, 1916. 
A very distinct plant, described properly by Britton in the genus Casasia, 
A specimen of the type collection of Alibertia jacquinioides in the herbarium of 
the Missouri Botanical Garden is, however, clearly the same as Casasia 
parvifolia. 
Duroia costaricensis Standl., sp. nov. 
Branchlets stout, hirsute, densely leafy at the ends; leaves opposite, the 
petioles stout, 7 mm. long or shorter, densely hirsute, the blades oblong-obovate, 
10 to 17.5 cm. long, 3.5 to 6.5 em. wide, cuneately narrowed to the base, obtuse 
at the apex and abruptly cuspidate-acuminate, with a narrow falcate acumen, 
chartaceous, copiously hirsute with slender fulvous hairs, the venation promin- 
ent beneath, the lateral veins slender, 7 or 8 on each side, the margin plane; 
staminate flowers fasciculate-cymose at the ends of the branchlets, short- 
pedicellate; calyx very densely hirsute with pale brownish hairs, the tube 1.5 
mm. long, the limb 4 to 4.5 mm, long, densely whitish-sericeous within, the lobes 
6 or 7, distant, linear-subulate, as long as the limb; corolla (in bud) 14 mm. 
long, densely sericeous outside, the tube stout, glabrous or nearly so within, 
the 6 lobes lance-oblong, acutish, longer than the tube, finely sericeous within; 
anthers sessile, 4 mm. long. 
Type in the U. S. National Herbarium, no. 938658, collected at Marais de’ 
Sierpe, Costa Rica, March, 1892, by H. Pittier (no. 6803). 
The genus Duroia has not been reported previously from North America. 
The species are chiefly Brazilian, although some occur in Colombia. 
