STANDLEY^ — TREES AND SHRUBS OF MEXICO. 697 



" cuamecatl " (Naluiatl; sometimes written ' quaumecatl") ; " turizo," " be- 

 juco espinoso" (Costa Rica). 



The flowers are wliite and fragrant. The stems are used as a substitute 

 for rope. The plant is employed in some localities for stupefying fish, and it 

 is used in Mexico as a remedy for rheumatism and syphilitic affections. 



This species or a related one is figured by Hernandez * and described in a 

 chapter entitled " De Quauhmecatl Zarsaparilla II. & III." The people of 

 "Yamguitlan " (Yauhuitlan, Oaxaca ?), he says, call the plant " Cozticuizti 

 palancapatli," and those of Michoaein " ychuanitzoz." He states that its 

 properties are similar to those of sarsaparilla (Smilax spp. ). 



21. Serjania brachycarpa A. Gray ; Radlk. Monogr. Serjan. 259. 1875. 

 Type from Victoria, Tamaulipas. Western Texas. 



Stems subhirsute; leaflets ovate-lanceolate or ovate, 1.5 to 3.5 cm. long, 

 mucronulate, remotely serrate, villous-tomentose beneath, thin ; sepals sub- 

 tomentose; petals 2.5 mm. long; fruit about 1 cm. long and broad, the cells 

 puberulent or glabrate. 



22. Serjania vesicosa Radlk. Monogr. Serjan. 277. 1875. 

 Known only from Queretaro, the type locality. 



Stems ferruginous-tomentose ; leaflets ovate, elliptic, or subrhombic, 5 cm. 

 long or less, acuminate, sharply serrate, tomentose beneath ; sepals tomentose- 

 pilose ; petals 3 mm. long ; fruit 1.5 to 1.8 cm long, 1.3 cm wide, glabrous. 



23. Serjania palmeri S. Wats Proc. Amer. Acad. 24: 45. 1889. 

 Known only from the type locality, Guaymas, Sonora. 



Stems densely tomentulose ; leaflets 0.5 to 2.5 cm. long, acute or acutish, 

 mostly entire, finely puberulent on the upper surface ; sepals tomentulose ; fruit 

 1.5 to 2 cm. long, puberulent. 



24. Serjania rutaefolia Radlk. Contr. U. S. Nat. Herb. 1: 316. 1895. 

 Known only from the type locality, Agiabampo, Sonora. 



Stems gray-puberulent, terete ; leaflets 1 to 2.5 cm. long, obtuse or retuse, 

 entire or incised-dentate, puberulent at first; sepals tomentulose; petals 4.5 mm. 

 long. 



25. Serjania albida Radlk. Contr. U. S. Nat. Herb. 1: 367. 1895. 



. Known only from the type locality, Santa Agueda, Baja California. 



Stems 6-angulate, glabrous; leaflets ovate, 1.5 cm. long or less, obtuse, sub- 

 trilobate, pale green, glabrous; sepals puberulent. 



The fruit is not known, and the generic position of the plant is doubtful. 



26. Serjania grosii Schlecht. Linnaea 18: 42. 1844. 



Oaxaca and perhaps elsewhere ; described from Mexico, the exact locality 

 not known. Central America. 



Stems sparsely pilose or glabrous, 5 or 6-sulcate ; leaflets ovate or rhombic, 

 5 to 8 cm. long, acute or acuminate, glabrous or pilosulous beneath ; sepals 

 tomentulose or the outer ones glabrate ; petals 1.5 to 2 mm. long ; fruit glabrous 

 or nearly so. 



The specific name is given incorrectly by Hemsley ^ as " grayii." 



27. Serjania emarginata H. B. K. Nov. Gen. & Sp. 5: 84. 1821. 

 Serjania acapiilcensis H. B. K. Nov. Gen. & Sp. 5: 84. 1821. 

 Guerrero ; type from mountains near La Venta de Tierra Colorada. 



Stems glabrous, 5 or 6-sulcate ; leaflets ovate, 3 to 4 cm. long, obtuse, glabrous ; 

 sepals tomentulose ; petals 1.8 mm. long ; fruit 1.5 cm. long and wide, glabrous. 



Thesaurus 289. 1651. 

 ' Biol. Centr. Amer. Bot. 1 : 206. 1880. 



