STAjSTDLEY TREES AISTD SHRUBS OF MEXICO. 151 



Veracruz ; type from Jalapa. Central America and northern South America. 



Shrub, 3.5 to 4.5 meters high; branchlets glabrous; petioles 4 cm. long; leaf 

 blades oblong-ovate, about 24 cm. long and 11 cm. wide, short-acuminate, cor- 

 date at the base, glabrous above, hirtellous beneath along the nerves. 



18. Piper schlechtendalii ' Steud. Nom. Bot. ed. 2. 2: 343. 1841. 

 Enckea schlechtendalii Miquel, Syst. Piper. 362. 1844. 



Piper schlechtendahlianum C. DC. in DC. Prodr. 16': 324. 1869. 



Known only from the type locality, Misantla, Veracruz. 



Branchlets glabrous ; petioles 6 mm. long ; leaf blades elliptic-lanceolate or 

 lanceolate, 6 to 10 cm. long, 2.5 to 3.5 cm. wide, long-acuminate, obtuse or acute 

 at the base, glabrous. 



19. Piper lepturum Kunth ; C. DC. in DC. Prodr. 16': 320. 1869. 

 SchiUeria leptura Kunth, Linnaea 13: 679. 1839. 



Oaxaca. Brazil ; type from Rio Janeiro. 



Branchlets glabrous ; petioles 1 cm. long ; leaf blades lanceolate or oblong- 

 lanceolate, 11 to 14 cm. long, 2.5 to 3 cm. wide, acuminate, cordate to acutish at 

 the base, glabrous. 



20. Piper meg'alophyllum C. DC. Linnaea 37: 357. 1873. 

 Pital and Mirador, Veracruz, the type localities. 



Branchlets glabrous ; petioles 6 to 9 cm. long ; leaf blades rounded-ovate, 16 to 

 25 cm. long, 14 to 21 cm. wide, acuminate, cordate at the base, glabrous. 



21. Piper auritum H. B. K. Nov. Gen. & Sp. 1: 54. 1815. 



San Luis Potosi to Oaxaca and Yucatdn ; type from somewhere in Mexico. 

 Central America ; Colombia. 



Shrub 1 to 4.5 meters high; branchlets glabrous; petioles 1.5 cm. long; leaf 

 blades ovate-oblong, about 16 cm. long and 9 cm. wide, attenuate to the apex, 

 cordate at the base. " Momo " (Tabasco); "xmacolan" (Yucatan, Maya); 

 "acoyo" (Veracruz); " hoja de la estrella " (Costa Rica); "Santa Maria," 

 " cordoncillo " (Nicaragua) ; " anisillo," " monca blanca " (Costa Rica) ; "hoja 

 de jute," " juniapra" (Guatemala, Pittier). 



In Veracruz the leaves are .used for seasoning tamales. In Costa Rica the 

 fresh leaves are applied to relieve headache. 



22. Piper oblongum H. B. K. Nov. Gen. & Sp. 1 : 52. 1815. 



Reported (by C. De Candolle) from Veracruz. Central America and north- 

 ern South America ; type from Venezuela. 



Branchlets glabrous: leaves short-petiolate, the blades elliptic, acuminate, 

 acutish at the base ; spikes about 8 cm. long. 



23. Piper dilatatum L. Rich. Act. Soc. Hist. Nat. Paris 1': 105. 1792. 

 Veracruz. Central America, West Indies, and South America. 



Shrub 2 to 3 meters high ; branchlets nearly glabrous ; petioles 5 to 15 mm. 

 long ; leaf blades ovate-elliptic or obovate-elliptic, acuminate. 



24. Piper pseudoasperifolium C. DC. in DC. Prodr. 16': 318. 1869. 

 Known only from Oaxaca, the type locality. 



Branchlets hirsute; petioles 1 cm. long; leaf blades lance-elliptic. 11 cm. 

 long. 5 cm. wide, acuminate, obtuse at the base. 



25. Piper palmeri C. DC; Rose, Contr. U. S. Nat. Herb. 1: 354. 1895. 

 Piper palmeri mansanilloanum C. DC; Rose, Contr. U. S. Nat. Herb. 1: 354. 



1895. 

 Colima ; type from the city of Colima. 



^ Named for Diedrich Franz Leonhard von Schlechtendal (1794-1866), pro- 

 fessor of botany at Halle. He published several important papers describing 

 early collections of Mexican plants. 



