STANDLEY TREES AND SHRUBS OF MEXICO. 409 



35. Cassia tonduzii Standi. Contr. U. S. Nat. Herb. 20:215. 1919. 

 Chiapas. Costa Rica (type locality). 



Tree ; leaflets elliptic or oblong, 3 to 8 cm. long ; flowers yellow, about 3 cm. 

 long ; fruit flat, 15 to 18 cm. long, G mm. wide, glabrate. 



36. Cassia quiedondilla Micheli, Mem. Soc. Phys. Hist. Nat. Geneve 34:272. pi. 

 19. 1903. 



Guerrero ; type from Los Fresnos. Guatemala to Costa Rica. 

 Shrub ; leaflets 1.2 to 3 cm. long, rounded at apex, pale beneath, glabrate ; 

 flowers yellow, the petals 3 to 3.5 cm. long. " Quiedondilla " (Guerrero). 

 Probably not essentially different from some of the forms of C. biflora. 



37. Cassia biflora L. Sp. PI. 378. 1753. 



Cassia acapnlcemis H. B. K. Nov. Gen. & Sp. 6:353. 1823. 



Cassia gemvn [flora Moc. & Sess^ ; Collad. Hist. Nat. Med. Cass. 103. pi. 3. 

 1816. 



Baja California to Chihuahua, Yucatan, and Chiapas. Widely distributed in 

 tropical America. 



Slender shrub, 0.5 to 2.5 meters high ; leaflets 1 to 3.5 cm. long, rounded or 

 sometimes emarginate at apex, glabrous or nearly so ; flowers yellow, 2 to 3 cm. 

 long ; fruit flat, 5 to 11 cm. long, 4 to 5 mm. wide, straight or curved. " Flor de 

 San Jos6 " (Oaxaca) ; " ahumada," " raontenegrito " (Nicaragua); " retama " 

 (Porto Rico) ; " brucha " (Venezuela) ; " abej6n," " biche silvestre " (Sinaloa). 



Said to have been used in the Bahamas as a remedy for venereal diseases. 



38. Cassia unijuga Rose, Contr. U. S. Nat. Herb. 5: 195. 1899. 

 Puebla ; type from Tehuacdn. 



Densely branched shrub, 30 to 90 cm. high ; leaflets rounded, 6 to 11 mm. 

 long, subretuse at apex, pubescent ; flowers axillary, yellow. 2.5 cm. long ; fruit 

 flat, glabrous, about 10 cm. long and 7 mm. wide. 



39. Cassia galeottiana Martens, Bull. Acad. Brux. 10 ': 305. 1843. 

 Puebla and Oaxaca (type locality). 



Shrub or small tree, 2 to 4.5 meters high ; leaflets 5 to 9 mm. long, rounded 

 at the apex, glabrate ; flowers yellow, 1 to 1.5 cm. long : fruit about 7 cm. long 

 and 2 cm. wide, flat and thin, glabrous, narrowly winged, breaking into short 

 joints. 



40. Cassia polyantha :SIoc. & Sesse; Collad. Hist. Nat. Med. Cass. 112. pi. 2. 

 1816. 



Cassia broicniana Kunth, Mimos. PI. Legum. 135. pi. Jfl. 181JK24. 



Cassia goldmani Rose. Contr. U. S. Nat. Herb. 10: 98. 1906. 



Baja California ; Guanajuato to Oaxaca. 



Shrub or small tree, 3 to 4.5 meters high ; leaflets 1 to 2 cm. long, rounded 

 at apex, glabrate in age; flowers yellow, about 1 cm. long; fruit similar to 

 that of the preceding species, 



41. Cassia wislizeni A. Gray, PI, Wright, 1: 60, 1852. 



Chihuahua (type locality) to Tamaulipas, San Luis Potosf, and Quer^taro. 

 Southern New Mexico and Arizona. 



Shrub, 1 to 3 meters high; leaflets obovate or rounded, 4 to 15 mm. long, 

 rounded at apex, thinly and minutely sericeous; petals yellow, 2 cm, long; 

 fruit flat, 6 to 8 mm, wide, glabrous, lustrous. "Pinacate" (Zacatecas). 



42. Cassia pring-lei Rose. Contr, U, S. Nat. Herb. 5: 194. 1899. 

 Cassia morelensis Greenra. Proc. Amer. Acad. 39: 79. 1903, 

 Colima to Morelos and Oaxaca ; type from Tomellfn, Oaxaca, 



Shrub or small tree, 1 to 6 meters high; leaflets oblong, obovate, or oval, 5 

 to 8 mm. long : flowers 2 to 2.5 cm, long ; fruit flat, 6 mm, wide. 



