STANDLEY TEEES AND SHRUBS OF MEXICO 1319 



Stenolobium stans Seem. Journ. Bot. 1: 88. 186.3. 



Stenolobium incisum Rose & Standi. Contr. U. S. Nat. Herb. 16: 174. 1913. 



Stenolobium tronadora Loesener, Repert. Sp. Nov. Fedde 16: 210. 1919. 



Stenolobium quinquejugum- Loesener, Repert. Sp. Nov. Fedde 16: 211. 1919. 



Nearly throughout Mexico. Widely' distributed in tropical and subtropical 

 America. 



Shrub or small tree, 1 to 8 meters high; leaves opposite, pinnate, the leaflets 

 5 to 13, linear-lanceolate to ovate-lanceolate or elliptic, acute or acuminate, 

 serrate or rarely entire, glabrous beneath or often pubescent or tomentose; 

 flowers bright yellow, in terminal racemes or panicles; calyx tubular-campanu- 

 late, 5-dentate; corolla 3.5 to 5 cm. long, funnelform-campanulate, the limb 

 somewhat bilabiate, 5-lobate; stamens 4; capsule linear, 10 to 20 cm. long, 

 about 6 mm. broad, loculicidally dehiscent, compressed; seeds winged. "Re- 

 tamo" or "retama" (MichoacAn, Guerrero, Jalisco, Mexico, Durango); "trona- 

 dor" or "tronadora" (Zacatecas, Guanajuato, Mexico, Hidalgo); " trompetilla " 

 (Hidalgo); "trompeta" (Durango); "gloria" (Sinaloa) ; "kanlo," "xkanlol" 

 (Yucatdn, Maya); "guie-bichi" (Oaxaca, Zapotec, Reko); "tulasuchil" (Oaxaca) ; 

 "palo de arco" (Chihuahua, Sonora, Oaxaca); "flor de San Pedro," "San Pedro" 

 (Tamaulipas, San Luis Potosf, Veracruz, Durango, Coahuila, Mexico); "corneta 

 amarilla" (Durango); "nixtamaxochitl" or " nextamalxochitl " (Nahuatl) ; 

 "borla de San Pedro" (Chiapas, San Luis Potosi, Mexico); "hierba de San 

 NicoMs," "hierba de San Pedro" (Flores); "flor amarilla" (Yucatan, Nica- 

 ragua); "miiiona" (Nuevo Le6n) ; "mazorca," "huachacata," "ichculili" 

 (Ramirez) ; "sauco amarillo" (Cuba, Porto Rico); "roble amarillo," "ruibarba" 

 (Porto Rico); "copete" (Panama); "sardinillo" (Nicaragua); "fresno," "chirlo- 

 birlos," "palo hueso" (Colombia); "tache," "tasto" (El Salvador); "candelillo" 

 (Costa Rica); "garrocha" (Argentina, Uruguay); "garanguay amarillo," 

 " guaran-guaran " (Argentina); "San Andres," "marchucha," " tagualaishte " (El 

 Salvador) . 



The shrub is sometimes known as "trumpet-flower" or "yellow elder." It is 

 a showy plant and is common in cultivation. The flowers are slightly fragrant 

 and are said to yield much honey. The wood is of little value but it was formerly 

 used by the Indians for making bows. The roots are reported to be a powerful 

 diuretic, and tonic, antisyphilitic, and vermifuge properties are ascribed to the 

 plant. In Veracruz a decoction of the flowers and bark is administered for pains 

 in the stomach, and in some parts of Mexico the plant has the reputation of 

 alleviating and even curing diabetes. At Guadalajara the roots are said to be 

 used for making a kind of beer. 



The species is a variable one, but although the writer has spent a large amount 

 of time in study of the extensive series of specimens available, it has been impos- 

 sible to find any reliable characters by which to assign the material to two or more 

 species. In the typical form the leaflets are usualh^ glabrous. T. stans velutina 

 is a form in which the leaflets are pubescent or tomentose beneath. This has 

 usualh^ been maintained as a distinct species, but there is every possible gradua- 

 tion between the forms with glabrous leaflets and those with tomentose ones. 

 Teconia staiis angustata Rehder ^ (Stenolobium incisum Rose & Standi.) is a form 

 common in northeastern Mexico and the adjacent United States in which the 

 leaflets are unusually narrow and incised-serrate. 



11. GODMANIA Hcmsl. Diag. PI. Mex. 35. 1879. 

 One other species has been described from Brazil. 

 1. Godmania aesculifolia (H. B. K.) Standi. 



Bignonia aesculifolia H. B. K. Nov. Gen. & Sp. 3: 140. 1818. 



1 Mitt. Deutsch. Dendr. Ges. 1915: 227. 1915. 



