52 : UNITED STATES AND MEXICAN BOUNDARY. 
.. ABDALEA FORMOSA, Torr. in Ann. Lyc. N. Y. 2, p. 118; d in. Emory Вер. t. 1. Gravelly and 
: rocky hills and prairies along the Rio Grande, from Frontera down to Eagle Pass, also in Coha- 
huila, April—July. А highly ornamental little shrub, bearing a profusion of bright rose- 
colored flowers. 
— DALEA POG0NATHERA, Gray, Pl. Wright. 1, p. 48. Hills along the Rio Grande and its tribu- 
taries in western Texas and the Mexican States, April—August. 
E DALEA LASIATHERA, Gray, l.c. Plains near Howard's Springs, September; Bigelow. Cen- 
tral Texas; T'hurber. 
гс DALEA BRAcHYsTACHYXS, Gray, l. c. 2, p. 39. Plains, Leon Springs, September; Bigelow. 
Sonora; Thurber. 
—— ПАТЕА PoLYGoNOIDES, Gray, l. с. Hills near the Copper Mines, New Mexico, October; Bigelow. 
Darza FILIFORMIS, Gray, l. с. With the last; Bigelow. Also between Janos and Santa Maria 
river, Sonora, September; Schott. 
DALEA LÆVIGATA, Gray,l.c. With the last; Bigelow, Thurber. Dry rocky places, valley 
«t of the Santa Cruz, Sonora; Captain E. K. Smith. ў 
=  Datea ALBIFLORA, Gray, l. с. р. 38. Hills near the Copper Mines, August—October; Bigelow. 
= Ban Pedro, Sonora; Thurber. 
DALEA ALOPECUROIDES, Willd.; Gray, РІ. Fendl. p. 31. Santa Cruz, Sonora, May—September ; 
Thurber, Captain E. K. Smith. 
DALEA WISLIZENI, Gray, Pl. Fendl. p. 82, & Pl. Wright. 2, р. 38. Santa Cruz, Sonora, 
September ; Thurber. 
DALEA AUREA, Nutt. Gen. 2, p. 101. Dry rocky places in the valley of the Limpio, July; 
Bigelow. Arroyo los Moros, on the Rio Grande, August; Schott. 
__ DALEA NANA, Torr. in Pl. Fendl. p. 31; var. elatior, ёс. Gray, Pl. Wright. 1, p. 46. Hills 
along the Rio Grande and its tributaries od New Mexico to Laredo, June—August. 
DALEA УУвтантц, Gray, РІ. Wright. 1, р. 49. Hill sides Frontera, and between the San Pedro 
and Pecos, May—October. Сайоп of the Guadaloupe river, Sonora, April; Capt. E. K. Smith. 
= Dara Jamesi, Torr. Ё Gray, Fl. 1, p. 308. Gravelly hills, Rock Creek, and plains along 
the Limpio, May-—July; Bigelow. Mule Springs, New Mexico; Thurber. 
_— DATEA LACHNOSTACHYS, Gray, Pl. Wright. 1, p. 46. With the last; Parry, Bigelow. 
Darza Motus, Benth. Pl. Hartw. р. 306. Hills and rocky places along the Rio Grande, Texas, 
< westward to the Colorado desert, California; February—July. 
DaLEA LANATA, Spreng. Syst. 3, p. 321. Sandy ravines and hill sides on the Rio Grande, 
^ Texas ; also in Cohahuila and Chihuahua, September. 
önü ARGYRÆA, Gray, Pl. Wright. 1, p. 47. Rocky hills between the Nueces and the Rio 
Grande, September. 
Darra Gresen, Gray, Pl. Thurb. p. 315. Agua Prieta, March; Parry. Cerro Gordo, in 
Durango; Thurber. Sierra del Pajarito, Sonora, July; Schott. Leaflets sometimes only 3 
Flowers bright rose color. 
了 ALEA Ewonrr, Gray, L c.; Torr. in Pacif. R. Road Егрі. 6, p. 360, t. 11. Valley of the 
| Gila, May— July ; Schott, Thurber. 
|. ==  Darza scoparia, Gray, Pl. Fendl. р. 32, & Pl. Wright. 1, p. 47. Sandy hills near Elceario, 
June; Bigelow. Laguna de los Patos, Chihuahua; Thurber. 
D Cub, tosa О- F А, 40 
