306 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Leaves simple. 

 Leaves glabrous, lanceolate, ovate, or oblanceolate to oblong. 



Leaves obtuse 2. F. pallida. 



Leaves acute or acuminate 5. F. lanceolata. 



Leaves hirteUous, especially beneath, linear. 



Leaf blades emargiuate at base; fruiting pedicels 3 to 5 mm. long; fruit 



7 to 12 mm. broad 3. F. watsoni. 



Leaf blades usually attenuate at base; fruiting pedicels 10 to 15 mm. long; 



fruit 12 to 15 mm. broad 4. F. macrocarpa. 



1. Forchammeria trifoliata Radlk. Field Mus. Bot. 1: 399. 1898. 

 Yucatan. 



Tree, 6 to 9 meters high; leaves long-petiolate ; leaflets obovate-oblong, 7 to 

 13 cm. long, thick, glabrous; flowers in rather large panicles. " Ti-es Marias." 



2. Forchammeria pallida Liebm. Nat. For. Kjobenhavn Vid. Medd. 1853: 94. 



1854. 



Forchammeria apiocarpa Radlk. Meth. Bot. Syst. 54. 1883. 



Colima to Oaxaca ; type collected between Tehuantepec and Mazatliln. 



Tree, 4.5 to 6 meters high, the trunk 12 to 20 cm. in diameter ; leaves narrowly 

 oblong or oblanceolate, 6 to 11 cm. long, usually rounded at apex ; flowers green, 

 in short or long racemes ; fruit subglobose, 1.5 to 2 cm. long, somewhat glaucous. 



3. Forchammeria watsoni Rose, Contr. U. S. Nat. Herb. 1: 302. 1895. 

 Baja California, Sonora, and Sinaloa ; type from Guayamas, Sonora. 



Shrub or tree, 3 to 7.5 meters high, often with a broad spreading crown; 

 leaves 6 to 12 cm. long, very thick, with conspicuous venation, the margins 

 revolute; flowers i-acemose; fruit globose-obovoid. "Palo San Juan" (Baja 

 California). 



4. Forchammeria macrocarpa Standi. Contr. U. S. Nat. Herb. 20: 183. 1919. 

 Known only from the type locality, San Luis Tultitianapa, Puebla. 

 Leaves 9 to 17 cm. long, acute or acutish. 



5. Forchammeria lanceolata Standi. Contr. U. S. Nat. Herb. 20: 183. 1919. ^M 

 Known only from the type collection, from somewhere in Mexico. '" 

 Shrub, 3 to 4.5 meters high ; leaves mostly lanceolate, 6 to 8 cm. long, 1.5 to 



3 cm. wide, obtuse at base ; fruit about 12 mm. long. 



50. MORINGACEAE. Horseradish Tree Family. 

 1. MOmNGA Juss. Gen. PL 348. 1789. 

 1. Moringa oleifera Lam. Encycl. 1:398. 1783. 



Guilandina nrwringa L. Sp. PI. 381. 1753. 



Moringa ptenjgosperma Gaertn. Fruct. & Sem. 2: 314. 1791. 



Moringa moringa Millsp. Field Mus. Bot. 1:490. 1902. 



Common in cultivation in Mexico and often growing without cultivation. 

 Native of Africa and the East Indies; widely cultivated and naturalized in tropi- 

 cal America. 



Tree, 3 to 6 meters high or larger, with whitish bark, the roots thick, soft; 

 leaves alternate, twice or thrice pinnate ; flowers paniculate, sweet-scented, the 

 5 petals white or yellowish white, tinged with crimson outside near the base; 

 perfect stamens 5 ; fruit a long 3-angled capsule ; seeds winged. " Paraiso 

 bianco" (Yucatitn) ; "paraiso de Espaiia " (Campeche) ; " perlas del Oriente" 

 (Guerrero, Oaxaca); " arbol de las perlas," " chinto borrego " (Oaxaca); 

 "acacia" (Tamaulipas) ; "paraiso francos," " palo jeringa " (Cuba); " ma- 

 rango" (El Salvador, Nicaragua, Costa Rica); " angela " (Porto Rico); " na- 

 rango," " marenque," "paraiso extranjero," " teberinto " (El Salvador). 



