Part 3, 1911] SIMAROUBACEAE 239 



1. Alvaradoa amorphoides Liebm. Vidensk. Meddel. 1853 : 100. 1854. 



Ah/aradoa mexicana Liebm.; Benth. PI. Hartw. 344. 1857. 



A shrub or small tree. Leaves mostly 1-2 dm. long, flexible, the rachis slender, the 

 leaflets 19-51, the blades thinnish, orbicular to obovate on the lower part of the rachis, 

 oblong varying to obovate, cuneate or oblong-ovate on the upper part, the larger ones 1-2.5 

 cm. long, all rounded or slightly retuse at the apex, deep-green and glabrous but not 

 lustrous above, pale and finely appressed-pubescent beneath; calyx-lobes ovate to orbicular- 

 ovate, 1.5-2 mm. long, obtuse or acutish ; samaras lanceolate to oblong-lanceolate, 1-1.5 

 cm. long, narrowed to the apex. 



Type locality : BolaSos, Jalisco. 



Distribution: Florida, Bahamas, Cuba, Mexico, and Costa Rica. 



Illustrations : Symb. Ant. 5 : 379. /. /, _' ,■ Britton, N. Am. Trees f.543. 



2. Alvaradoa haitiensis Urban, Symb. Ant. 5 : 379. 1908. 

 A shrub or small tree. Leaves mostly 0.5-1 dm. long, stiff, the rachis rather slender, 

 the leaflets 9-25, the blades thick, suborbicular, oval, or obovate near the base of the rachis, 

 oblong or nearly so on the upper part of the rachis, the larger ones mostly 1-2 cm. long, 

 all obtuse, deep-green above, yellowish and more or less loose-pubescent beneath ; calyx- 

 lobes ovate to triangular-ovate, 1.5-2 mm. long, obtuse or abruptly constricted into a short 

 acumination ; samaras oblong-obovate, somewhat over 1 cm. long, rounded at the apex. 



Type locality : Near La Brande, Haiti. 



Distribution : Haiti. 



Illustration : Symb. Ant. 5 : 379. /. 3. 



3. Alvaradoa arborescens Wright ; Griseb. Cat. PI. Cub. 50. 1866. 

 A shrub or small tree with puberulent twigs. Leaves mostly 1-1.5 dm. long, stiff, 

 the rachis rather stout, the leaflets 7-19, the blades leathery, obovate, oval, or suborbicular 

 at the base of the rachis, elliptic, oblong, or ovate on the upper part, the larger ones 1-2.5 

 cm. long, all obtuse or notched at the apex, glabrous, dark-green and shining above, 

 yellowish-green and dull beneath ; calyx-lobes ovate, mostly 1.5 mm. long, acute or acutish ; 

 samaras oblong, 1-1.5 cm. long, rounded at the apex, very short-pedicelled. 



Type locality' : Mont Toro, eastern Cuba. 

 Distribution : Eastern Cuba. 

 Illustration: Symb. Ant. 5: 379./. 4. 



4. Alvaradoa jamaicensis Benth. PI. Hartw. 344. 1857. 

 A shrub or small tree with finely pubescent twigs. Leaves 1-2.5 dm. long, stiff, the rachis 

 stout, the leaflets 19-45, the blades leathery, oval or suborbicular at the base of the rachis, 

 oblong or nearly so on the upper part, the larger ones 2-4 cm. long, all notched at the apex, 

 glabrous, deep-green and somewhat shining above, yellowish-green and dull beneath ; calyx- 

 lobes not seen ; samaras broadly ovate to orbicular-ovate, 10-12 mm. long, acute, rather long- 

 pedicelled. 



Type locality : I'nipn Hill, Jamaica. 

 Distribution : Jamaica. 

 Illustration: Symb. Ant. 5 : 379. /. 5. 



