150 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



9. Piper papantlense C. DC. in DC. Prodr. 16': 338. 1869. 

 Veracruz ; type from Papantla. Central America. 



Branchlets glabrous; petioles 1.2 cm. long; leaf blades ovate or ovate- 

 lanceolate, 10.5 cm. long, 5 cm. wide. 



10. Piper karwinskianum Kunth ; C. DC. in DC. Prodr. 16': 327. 1869. 

 Schilleria kartoinskiana Kunth, Linnaea 13: 700. 1839. 



Known only from the type locality, near the City of Mexico. 

 Branchlets shart-villous ; petioles about 1 cm. long; leaf blades obliquely 

 elliptic, acuminate, rounded at the base, soft-puberulent on both surfaces. 



11. Piper caladiifolium (Miquel) C. DC. in DC. Prodr. 16': 330. 1869. 

 Artanthe caladiifoUa Miquel, Syst. Piper. 387. 1844. 



Mexico, the locality not known. Central America. 



Branchlets glabrous ; leaves long-petiolate, the blades ovate-cordate, short- 

 acuminate, 13 to 21 cm. long, 10 to 14 cm. wide. 



12. Piper sanctum (Miquel) Schlecht. ; C. DC. in DC. Prodr. 16': 330. 1S69. 

 Artanthe sancta Miquel, Syst. Piper. 389. 1844. 



Veracruz and probably elsewhere ; type from Atlacomulco. 



Leaf blades rounded-cordate, about 21 cm. long and 18 cm. wide, short- 

 acuminate, puberulent. The following names are reported for this species, 

 although some probably belong to other species, and doubtless most of them 

 are applied to various species indiscriminately: "Santa Maria" (Tabasco); 

 " acuyo," " hoja de ajan " (Veracruz); " hierba santa " (Veracruz, Oaxaca) ; 

 " santilla de comer" (Oaxaca, Reko) ; " tlamapaquelite," " tianepaquelite," 

 " tlanepaquilitl " (Veracruz, Oaxaca; Nahuatl) ; "hoja santa;" "hoja de 

 anis." 



The leaves have been used by the early and present inhabitants of Mexico as 

 a condiment. In popular medicine the plant is used as a stimulant and as a 

 local anesthetic, and for toothache, stomach affections, and venereal diseases. 



13. Piper commutatum Steud. (Nom. Bot. ed. 2. 2: 340. 1841, nomen nudum). 

 Piper plantagineum Lam. err. det. Cham. & Schlecht. Linnaea 6 ; 353. 1831. 

 Piper plantagineum Cham. & Schlecht.; C. DC. in DC. Prodr. 16': 330. 1869. 



Not P. plantagineum Lam. 1791. 

 Described from Mexico, the locality not known. 



Branchlets glabrous; petioles 2 cm. long; leaf blades ovate, 9 cm. long, 5 cm. 

 wide, acuminate, rounded or subcordate* at the base, glabrous. 



14. Piper zacuapanum C. DC. in DC. Prodr. 16': 330. 1869. 



Piper tiliaefolium Schlecht. & Cham. Linnaea 6: 352. 1831. Not P. tiliae- 



folium Desv. 1825. 

 Veracruz ; type from Zacuapan. 



Branchlets glabrous ; petioles about 6 cm. long ; leaf blades ovate, 14 cm. long, 

 12 cm. wide, acuminate, cordate at the base. 



15. Piper bourgeaui C. DC. Linnaea 37: 358. 1873. 

 Known only from the type locality, Cuernavaca, Morelos. 



Branchlets densely canescent-villous ; petioles 1.2 cm. long; leaf blades 

 oblong-lanceolate, 21 cm. long, 8 cm. wide, acuminate, subcordate at the base, 

 soft-pubescent on both surfaces. 



16. Piper teapense C. DC. in DC. Prodr. 16': 200. 1869. 

 Known only from the type locality, Teapa, Tabasco. 



Branchlets pubescent; petioles 5 mm. long; leaf blades ovate-oblong. 13 cm. 

 long, 5.8 cm. wide, acuminate, cordate at the base, glabrous on the upper sur- 

 face, pubescent beneath. 



17. Piper lapathifolium (Kunth) Steud. Nom. Bot. ed. 2. 2: 341. 1841. 

 Schilleria lapathifolia Kunth, Linnaea 13: 714. 1839. 



