STANDLEY — TREES AND SHRUBS OF MEXICO. 565 



Leaves and liranchlets Umientose, at least when youns,'. 



Leaves cordate at base 1. M. cordata. 



Leaves rounded to acute at base. 



Cymes pedunculate; leaves conspicuously petiolate 2. H. mexicana. 



Cymes and leaves sessile or nearly so 3. M. subglabrata. 



Leaves and branchlets sericeous, strigose, or glabrous. 



Styles unequal, the 2 posterior ones longer and thicker than the anterior one. 

 Leaves acute or acuminate; stamens opposite the lateral petals much 

 stouter than the others and longer than those opposite the sepals. 



4. M. incana. 

 Leaves rounded or obtuse at apex ; stamens opposite the lateral petals 

 not longer than those opposite the sepals. 



Fruit 5 to 6 mm. wide 5. M. oimbellata. 



Fruit 10 to 12 mm. wide 6. M. punicifolia. 



Styles nearly equal, or the anterior one slightly longer than the posterior 

 ones. 

 Leaves, at least most of them, obtuse or rounded at apex. 



Styles unequal, the anterior one longer than the posterior one; anterior 



petals longer than the posterior one 7. M. heterophylla. 



Styles subequal ; anterior petals smaller than the posterior one. 



Larger petals 6 to 7 mm. long 8. M, galeottiana. 



Larger petals 9 to 10 mm. long 9. M. diversifolia. 



Leaves acute or acuminate. 



Sepals barbate; calyx with 10 glands 10. M. ovata. 



Sepals not barbate; calyx with 6 to S glands 11. M. glabra. 



1. Malpighia cordata Small, N. Amer. Fl. 25: 154. 1910. 

 Jalisco and Morelos; type from Zacoalco, Jalisco. 



Shrub, densely tomentose ; leaves rounded-ovate, 3 to 6 cm. long, obtuse or 

 acute; larger petrels 9 to 11 mm. long; fruit about 1 cm. in diameter. 



2. Malpighia mexicana Juss. Ann. Sci. Nat. II. 13: 337. 1840. 

 Btinchosia (/tiadolajarensis S. Wats. Proc. Amer. Acad. 22: 401. 1887. 

 Malpighia oaxacana Niedenzu ; Loesener, Bull. Herb. Boiss. 2: 544. 1894. 

 Durango to Oaxaca and Morelos. 



Erect shrub, 2 to 4.5 meters high ; leaves oval to ovate, 3 to 10 cm. long, 

 obtuse or acute, usually densely tomentose beneath ; flowers purple or 

 purplish, 1.5 to 2 cm. wide; fruit red, about 1 cm. in diameter. " Nanche " 

 (Oaxaca); " manzanito " (Jalisco). 



3. Malpighia subglabrata (Niedenzu) Small, N. Amer. Fl. 25: 154. 1910. 

 Malpigliia vie.ricana snhghthrata Niedenzu. Gen. Mnlp. 4. 18S9. 

 Known only from the type locality, San Agustin. 



Leaves ovate, 2.5 to 7 cm. long, obtuse, glabrate ; fruit red, 1 cm. long. 



4. Malpighia incana Mill. Gard. Diet. ed. 8. MaJpighia no. 3. 1768. 

 Malpighia campcchiensis Lam. Encycl. 4: 333. 1797. 



Yucatan and Campeche; type from Campeche. Cuba. 



Leaves oblong or lanceolate, 3 to 6 cm. long, pubescent, especially beneath, 

 sliort-petiolate ; flowers purple, 1.5 cm. wide; fruit 8 mm. in diameter. 



5. Malpighia umbellata Rose. Contr. U. S. Nat. Herb. 1: 310. 1895. 

 Sonora and Sinaloa ; type from Agiabanipo, Sonora. 



Much-branched shrub, 2.5 meters high ; leaves oblong or obovate, 1.5 to 3.5 

 cm. long, glabrate ; fruit red, edible. "Mora de campo." 



