252 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



7. Atriplex confertifolia (Torr.) S. Wats. Proc. Aiiier. Acad. 9: 119. 1874. 

 Obioxc. confertifolia Torr. in Freiii. Rep. Exped. Rocky Mount. 318. 1845. 

 Cliihuahua. Northward in the United States to Oregon and South Dakota; 



type from Utah. 



Shrub, rarely over 50 cm. high, often forming broad clumps; leaves mostly 

 oval, entire, 1 to 2 cm. long; flowers dioecious; bracts oval or suborbicular, 



8. Atriplex lentiformis (Torr.) S. Wats. Proc. Amer. Acad. 9: 118. 1874. 

 Obione lentiformis Torr. in Sitgreaves, Rep. Zufii & Colo. 1G9. 1853. 

 Northern Sonora. Southern California to southwestern Utah ; type from 



Arizona. 



Dense shrub, 1 to 4 meters high ; leaves ovate to ovate-deltoid or oblong, ob- 

 tuse or rounded at apex ; bracts smooth on the sides. 



The Coahuilla Indians of southern California grind the seeds and boil the 

 meal in salted water. The various species of Atriplex were rather important 

 food plants among many of the Indians of the arid portions of North America. 

 Among the Pimas of Arizona the yomig shoots, which have a salty flavor, were 

 boiled and eaten. The same tribe made use of the seeds (presumably includ- 

 ing also the bracts), cooking them in pits over night, then drying and parching 

 them and storing for winter use. Seeds so preserved were eaten as pinole — a 

 mixture of the ground seeds with water. The Pimas used the powdered root as 

 a dressing for sores. 



9. Atriplex polycarpa (Torr.) S. Wats. Proc. Amer. Acad. 9: 117. 1874. 

 Obione polycarpa Torr. U. S. Rep. Expl. Miss. Pacif. 4: 130. 1857. 

 Atriplex curridens T. S. Brandeg. Proc. Calif. Acad. II. 2: 201. 1889. 

 Sonora and Baja California. California to Arizona ; type from the Gila 



River, Arizona. 



Dense shrub, 1 to 2 meters high ; leaves rhombic or deltoid, 2 to 5 cm. long, 

 grayish ; flowers dioecious ; bracts with a few subulate appendages on the sides. 



10. Atriplex insularis Rose, Contr. U. S. Nat. Herb. 1: 80. 1890. 

 Islands off the west coast of Baja California ; type from Raza Island. 



Erect shrub, 1.5 to 2 meters high ; leaves obovate or orbicular, 1 to 1.5 cm. 

 long, short-petiolate or sessile, rounded at apex ; bracts coarsely and irregularly 

 dentate, short-tuberculate on the sides. 



11. Atriplex obovata INIoq. Chenop. 61. 1840. 



Atriplex grc<i<jii S. AVats. Proc. Amer. Acad. 9: 118. 1874. 



Chihuahua to Zacatecas ; type from San Luis Potosi. Western Texas and 

 southern New Mexico. 



Shrub, 15 to 40 cm. high ; leaves oblong to oval, 1 to 3 cm. long ; flowers 

 dioecious ; bracts denticulate, the sides sparsely tuberculate er crested near the 

 base, rarely smooth. 



12. Atriplex pring'lei Standi. N. Amer. Fl. 21: G8. 1916. 



Known only from the type locality, alkaline plains. Hacienda de Angostura, 

 San Luis Potosi. 



Shrub, 20 to 30 cm. high ; leaves obovate, 1.5 to 3 cm. oblong, rounded at apex ; 

 bracts not compressed, irregularly dentate, the sides with few or lunnerous 

 append."! gos. 



2. EUROTIA Adans. Fam. PI. 2: 200. 1763. 

 1. Eurotia subspinosa Rydb. Bull. Torrey Club 39: 312. 1912. 



Chihuahua and Coahuila. Southern California to Utah ; type from Utah. 



Much-branched shrub a meter high or less, copiously pubescent; leaves 

 linear, alternate, 1 to 3 cm. long, stellate-pub(>scent ; flowers dimx'ious. cUis 

 tered in the leaf axils; fruit covered with long white or brownish hairs. 



