24 CHENOPODIACEZ. 
_ [@. glaucum, Linn., a European species, occurs here and there in Mexico as an 
introduced weed. | 
9. Chenopodium incisum, Poir. Dict. Suppl. i. p. 392 ; DC. Prodr. xiii. 2, p. 75. 
SourH Mexico, around the city of Mexico (Berlandier, 847). 
10. Chenopodium mexicanum, Mog. in DC. Prodr. xiii. 2, p. 70. 
Sour Mexico, around the city of Mexico (Berlandier, 451). 
[C. murale, Linn., a European species, is an introduced weed in Mexico. | 
[ Beta vulgaris, Linn., occurs in Mexico as an escape from cultivation. | 
2. ATRIPLEX. 
Atriplex, Linn. Gen. Plant. n. 1153; Benth. et Hook. Gen. Plant. iii. p. 53. 
Herbs and shrubs. About 100 species, widely diffused in temperate and subtropical 
regions. 
1. Atriplex acanthocarpa, Wats. in Proc. Am. Acad. ix. p. 117. 
Obione acanthocarpa, Torr. Bot. U.S. & Mex. Bound. Surv. p. 183. 
Texas; New Mexico._-Norta Mexico, Sonora (Thurber), San Lorenzo de Laguna, 
Coahuila (Palmer, 1161). Hb. Kew. 
2. Atriplex arenaria, Nutt. Gen. N. Am. Pl. i. p. 198. 
Obione arenaria, Mog. Chenop. Enum. p. 71, et in DC. Prodr. xiii. 2, p. 167. 
New Jersey southward.—Nortu Mexico, region of San Luis Potosi, 6000 to 8000 feet 
(Parry & Palmer, 779); Sovrna Mexico, Tehuacan at 5000 feet (Galeotti, 377). 
Hb. Kew. 
8. Atriplex elegans, Dictr. Syn. Pl. v. p. 537; Wats. in Proc. Am. Acad. ix. 
p-. 114. 
Obione elegans, Mog. in DC. Prodr. xiii. 2, p. 118. 
Obione radiata, Torr. Bot. U.S. & Mex. Bound. Surv. p. 183. 
New Mexico; Arizona.—Norr Mexico, Sonora Alta (Coulter), Chihuahua (Thurber). 
4. Atriplex canescens, James, Cat. p. 178; Torr. in Ann. Lyc. N. York, ii. 
p. 239; Wats. in Proc. Am. Acad. ix. p. 120, nec Nutt. Gen. N. Am, Pl. i. p. 197. 
Obione tetraptera, Benth. Bot. Voy. ‘Sulphur,’ p. 48. 
Obione canescens, Torr. in Frem. Rep. p. 95, pro parte. 
Obione occidentalis, Mog. in DC. Prodr. xiii. 2, p. 112. 
Atriplex berlandiert, Mog. Chenop. Enum. p. 65. 
Obione berlandieri, Mog. in DC. Prodr. xiii. 2, p. 114. 
Atriplex occidentalis, Dietr. Syn. Pl. v. p. 537. 
Cotorabo to NEvapDA and southward to SourH Catirornia and New Mexico.——Nortu 
Mexico, Chihuahua (Thurber), Sonora (Wright), Cerros Bravos (Gregg), San Luis Potosi 
(Parry & Palmer), Parras &c. (Palmer). Hb. Kew. — 
