62 NORTH AMERICAN FLORA [Volume 25 



middle, about 1 mm. long, its lobes triangular-ovate, acute; petals white, 1.5-2.5 mm. 

 long, oblong, obtuse, the ligule about one third as long as the blade, its lobes irregularly 

 bluntly toothed ; drupes red, oblong, obtuse, 4-6 mm. long. Leaves very variable in size, 

 shape and relative thickness, the extreme forms of the species appearing very different. 



Type locality : Jamaica. 



Distribution : Bahamas ; Cuba ; Haiti ; Porto Rico ; Jamaica. 



8. Erythroxylon compactum Rose, Contr. U. S. Nat. Herb. 

 8: 313. 1905. 

 A shrub 3 m. high or less, the branchlets short, often spur-like, the young bark red- 

 dish-brown, becoming dark-brown when older. Leaves obovate, 1-1.5 cm. long, rather 

 firm in texture, dull, slightly paler-green beneath than above, delicately reticulate-veined, 

 obtuse or refuse at the apex, cuneate-narrowed at the base, the petioles 2-3 mm. long, the 

 stipules ovate, acute, nearly 1 mm. long ; flowers solitary in the axils on pedicels 2 mm. 

 long or less ; calyx cleft to about the middle, 1 mm. long, its lobes ovate, acute ; petals 

 oblong-lanceolate, 2.5 mm. long, acute or acutish, the ligule-lobes nearly one half as long 

 as the blade, acutely laciniate ; drupes oblong, about 6 mm. long. 



Type locality: Rocky hills near Tehuacan, Puebla, Mexico. 

 Distribution : Known only from the type locality. 



9. Erythroxylon pallidum Rose, Contr. U. S. Nat. Herb. 



8: 314. 1905. 

 A shrub, with slender dark-brown branches. Leaves ovate to ovate-oblong, 2-3 cm. 

 long, 2 cm. wide or less, rounded at the apex, or some of them slightly emarginate, obtuse 

 or acutish at the base, membranous, pale-green on both sides but somewhat darker above 

 than beneath, the reticulate venation rather prominent on the upper side ; petioles very 

 slender, 4-8 mm. long; stipules ovate, acute, about 1.5 mm. long; pedicels solitary or 2 

 together in the axils, inversely pyramidal and 2-4 mm. long in fruit ; fruiting calyx about 

 1.5 mm. long, its lobes triangular-ovate; drupes oblong, about 8 mm. long. 



Type locality : San Juan Capistrano, Zacatecas, Mexico. 

 Distribution : Known only from the type locality. 



10. Erythroxylon Pringlei Rose, Contr. U. S. Nat. Herb. 



8: 314. 1905. 

 A much-branched shrub, 3 m. high or more, the branches dark-brown. Leaves ovate 

 to ovate-oblong, broadest at or below the middle, 1.5-3 cm. long, 10-17 mm. wide, obtuse 

 or slightly retuse at the apex, cuneate-narrowed at the base, coriaceous in texture, rather 

 strongly reticulate-veined and deep dull-green above, paler beneath ; petioles slender, 4-7 

 mm. long; stipules triangular-ovate, acute, about 1.5 mm. long; pedicels solitary in the 

 axils, angled, 5-7 mm. long in fruit ; calyx deeply lobed, 1.5-2 mm. long, its lobes ovate, 

 acute; drupes oblong, red, slightly glaucous, 7-8 mm. long, 3-4 mm. thick. 



Type locality : Mountains about Ignala, Guerrero, Mexico. 

 Distribution: Known only from the type locality. 



11. Erythroxylon spinescens A. Rich, in Sagra, Hist. Cuba 



10 : 104. 1845. 

 A shrub, 3 m. high or less, the twigs spreading, stiff, spinescent. Leaves oval to 

 obovate, 3 cm. long or less, 1-2 cm. wide, subcoriaceous, dull-green above, paler and finely 

 reticulate-veined beneath, blunt at the apex, acute at the base, the petioles 1.5-2 mm. long, 

 the stipules triangular-ovate, obtusish, about 1 mm. long; flowers 1-3 in the axils, the 

 pedicels 1.5^1 mm. long; calyx cleft to a little above the middle, 2 mm. long, its lobes 

 triangular, acute; petals about 2.5 mm. long, short-clawed, oblong-oval, the ligule nearly 

 half as long as the blade; drupes oblong, obtuse, 6-7 mm. long, about 3 mm. thick, 

 6-angled. 



Type locality : Near Guaniman, Cuba. 

 Distribution : Cuba. 



