170 NORTH AMERICAN FLORA [Volume 25 



13. Byrsonima rhombifolia A. Juss. Ann. Sci. Nat. 

 II. 13: 333. 1840. 



Byrsonima Cumingiana Griseb. Bonplandia 6 : 3. 1858. Not B. Cumingiana A. Juss. 1840. 



Leaf-blades more or less rhombic, oblong, elliptic, or lanceolate, 4-8 cm. long, some- 

 what acuminate, but usually blunt at the apex, more or less pale-puberulent above, perma- 

 nently pubescent beneath with pale-rusty hairs, cuneate at the base, short-petioled ; panicle- 

 rachis and pedicels copiously pubescent ; sepals ovate, 2.5-3 mm. long, the glands one half 

 the length of the sepal-body, or more ; larger petals 6-8 mm. long ; drupes not seen. 



Type locality : Brazil. 



Distribution : Guatemala and Nicaragua to Brazil. 



14. Byrsonima oaxacana A. Juss. Ann. Sci. Nat. II. 13 : 332. 1840. 

 Leaf-blades obovate, usually broadly so, or elliptic, 2-7 cm. long, rounded or retuse and 

 sometimes minutely pointed at the apex, sparingly pubescent above, copiously gray-silky 

 beneath, abruptly narrowed or acute at the base, short-petioled; panicle-rachis and pedicels 

 tomeutulose ; sepals ovate or oblong-ovate, 4-5 mm. long, the glands about one half the 

 length of the sepal-body; larger petals 8-10 mm. long; drupes globular, 9-11 mm. in 

 diameter. 



Tvpe locality : Mexico. 

 Distribution : Southern Mexico. 



15. Byrsonima verbascifolia (L.) DC. Prodr. 1 : 579. 1824. 



Malpighia verbascifolia L. Sp. PI. 426. 1753. 



Leaf-blades cuneate, obovate, or oblong-oblanceolate, 9-35 cm. long, rounded or notched 

 at the apex, thinly gray-pubescent above, or glabrous in age, tomentose beneath, more or 

 less cuneate at the base, sessile and partly clasping or very short-petioled ; panicle-rachis 

 and pedicels tomentose ; sepals ovate, the glands one half the length of the sepal-body or 

 less; larger petals 10-12 mm. long; drupes not seen. 



Type locality : Tropical America. 



Distribution : Isle of Pines ; also in Trinidad and northern South America. 



Illustrations: Aubl. Hist. PI. Guian. pi. 184; Cav. Diss. pi. 240. 



16. Byrsonima coccolobaefolia H.B.K. Nov. Gen. & Sp. 

 5 : 148. 1822. 

 Malpighia coccolobaefolia Spreng. Syst. 2 : 384. 1825. 



Leaf-blades obovate, oval, ovate, or suborbicular, 6-13 cm. long, rounded or emarginate 

 at the apex, glabrous, veiny, rounded or subcordate at the base, sessile or nearly so ; pan- 

 icle-rachis and pedicels sparingly pubescent, or glabrous at maturity ; sepals ovate or oblong- 

 ovate, 4-5 mm. long, the glands fully one half the length of the sepal-body ; larger petals 

 6-8 mm. long; drupes not seen. 



Type locality : Caracas, Venezuela. 



Distribution : Isle of Pines ; also in northern South America. 



17. Byrsonima trinitensis A. Juss. Ann. Sci. Nat. 

 II. 13: 334. 1840. 



Leaf-blades oblong, elliptic, or obovate, 2-9 cm. long, obtuse or slightly emarginate, 

 glabrous, smooth and slightly shining above, dull and somewhat veiny beneath, abruptly 

 narrowed or cuneate at the base, short-petioled ; panicle-rachis and pedicels sparingly 

 pubescent, or glabrous at maturity ; sepals broadly ovate to deltoid, 3-5 mm. long, or 

 larger at maturity, the glands about one half the length of the sepal-body ; drupes broadly 

 ovoid or globose-ovoid, about 1 cm. in diameter. 



Type locality : Trinidad. 



Distribution : Dominica, Martinique, and Trinidad ; perhaps also in Hispaniola. 



