STANDLEY TREES AND SHRUBS OF MEXICO. 155 



52. Piper marginatum Jacq. Icon. PI. Rar. 2: 2. pi. 215. 1786. 



Miehoacan and Guerrero. Central America, West Indies, and Soutli America. 



Shrub, up to 5 meters liigli ; branchlets glabrous ; leaf blades ovate-rounded, 

 12 to 16 cm. long and wide, acuminate at the apex. " Anisillo " (Santo Do- 

 mingo, Nicaragua) ; " higuillo Oloroso" (Porto Rico). 



53. Piper decrescens (Miquel) C. DC. in DC. Prodr. 16': 251. 1869. 

 Enckea decrescens Miquel, Lond. Journ. Bot. 4 ; 440. 1845. 

 Hacienda de los Naranjos. Central America. 



Branchlets glabrous; leaf blades ovate or broadly ovate, 8 cm. long, 5 cm. 

 wide, short-acuminate ; spikes 8 cm. long. 



54. Piper kuiithii (Miquel) C. DC. in DC. Prodr. 16': 250. 1869. 

 Enckea kunthU Miquel, Syst. Piper. 363. 1844. 



Veracruz to Oaxaca and Chiapas ; type from Cordillera of Oaxaca. 

 Branchlets pubescent ; leaf blades elliptic-lanceolate, 5 to 7.5 cm. long, 1.5 to 

 4 cm. wide, long-acuminate. 



55. Piper jaliscanum S. Wats. Proc. Amer. Acad. 26: 145. 1891. 

 Jalisco, Sinaloa, and Tepic ; type from Guadalajara, Jalisco. 



Shrub, 2.5 to 4.5 meters high, glabrous ; petioles 6 to 14 mm. long ; leaf 

 blades 3.5 to 7.5 cm. long, acute or short-acuminate ; spikes 6 cm. long. 



56. Piper lindenii (Miquel) C. DC. in DC. Prodr. 16': 248. 1869. 

 Enckea lindenii Miquel, Syst. Piper. 368. 1844. 



Known only from the type locality, Teapa, Tabasco. 



Branchlets puberulent ; leaf blades elliptic-lanceolate, 7 to 10 cm. long, 2 to 4 

 cm. wide, acuminate. 



57. Piper ung'uiculatum Ruiz & Pav. Fl. Peruv. Chil. 1: 34. 1798. 

 Piper terminale H. B. K. Nov. Gen. & Sp. 1 : 57. 1815. 



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

 America ; type from Peru. 



Shrub, 2 to 5 meters high ; branchlets glabrous ; leaf blades oblong-ovate, 6 to 

 9 cm. long, 2.5 to 4 cm. wide, attenuate-acuminate. 



58. Piper medium Jacq. Icon. PI. Rar. 1: 2. pi. 8. 1781. 

 Piper ceanothifolium H. B. K. Nov. Gen. & Sp. 1: 26. 1815. 



Veracruz to Yucatan and Oaxaca. Central America, West Indies, and South 

 America. 



Shrub, 1 to 4.5 meters high ; branchlets puberulent ; leaf blades elliptic or 

 ovate-elliptic, acuminate; spikes about 6 cm. long. " Cordoncillo " (Vera- 

 cruz); " yaxtehc-ch6 " (Yucatan, Maya); " alcotan '' (Costa Rica); "higuillo 

 de limon " (Porto Rico). 



In Costa Rica the plant is reputed to be a cure for snake bites. 



59. Piper uhdei' C. DC. in DC. Prodr. 16': 248. 1860. 

 Mexico, the locality not known. 



Branchlets glabrous; petioles 7 mm. long; leaf blades elliptic-lanceolate or 

 lanceolate, acuminate. 



DOUBTFUL SPECIES. 



PiPEK ACUTiuscuxuM C. DC. Ann. Cons. Jard. Geneve 2: 259. 1898. Type from 

 Valley of Cordoba, Veracruz. 



' Named for C. A. Uhde, who was Prussian consul at Matamoros about 1845. 

 He made large collections of fruits, seeds, and living orchids, as well as of 

 herbarium specimens, which were sent to the Botanical Garden at Berlin. 

 126651—20 11 



