126 Trans. Acad. Sci. of St. Louis 
Zygophyllaceae: 
Tribulus terrestris L. Ft. Smith, Sebastian Co.; 
6094 Corning, Clay Co. 
Rutaceae: 
Ptelea polyadenia Greene. 5923, 5921 Cotter, Marion 
Co.; 6957 Heber Springs, Cleburne Co. 
Zanthoxyllum americanum Mill. Savoy, Wash- 
ington Co. 
Meliaceae: 
Melia Azedarach L. Escaped from cultivation, 
Fulton, Hempstead Co. 
Euphorbiaceae: 
Andrachne phyllanthoides (Nutt.) Muell. Arg. 
5528 Eureka Springs, 27053 Berryville, Carroll Co.; 
Magazine Mtn., Logan Co.; Hot Springs, Garland 
Co. 
Croton Engelmanni var. albinoides Ferg. Ful 
ton, Hempstead Co.; Texarkana, Miller Co.; Ash- 
down, Little River Co. 
Crotonopsis elliptica Willd. 6962 Heber Springs, 
Cleburne Co., also common in barrens of Ozark re- 
gion. 
Euphorbia arkansana Engelm. & Gray. (Tithy- 
malus arkansanus Kl. & Garcke). Clark Co. (C. 
Woolsey). 
Euphorbia commutata Engelm. (Tithymalus com- 
mutatus Kl. & Garecke). Eureka Springs, Car- 
roll Co. (C. Woolsey). 
