WOOTON AND STANDLEY FLORA OF NEW MEXICO. 199 



Stems not jointed; leaves never scalelike, mostly broad 

 and flat. 

 Flowers monoecious or dioecious. 



Pericarp and plant densely hairy 5. Eurotia (p. 201). 



Pericarp not hairy; plant more or less scurfy. . fi'. Atriplex (p. 201). 

 Flowers perfect. 



Fruit dorsally flattened (narrowly winged), ex- 



serted from the calyx 7. Corispermum (p. 205). 



Fruit not dorsally flattened, inclosed in the 

 calyx. 

 Fruiting calyx transversely winged. 



Flowers paniculate; leaves broad, flat, 



toothed 8. Cycloloma (p. 206V 



Flowers axillary; leaves terete 12. Kochia (p. 209). 



Fruiting calyx not winged. 



Sepals and stamens each 1 9. Monolepis (p. 200 i . 



Sepals 3 to 5; stamens 1 to 5. 



Fruiting calyx fleshy, reddish; 



plants glabrous 10. Blitum (p. 206). 



Fruiting calyx herbaceous, green- 

 ish; plants mostly mealy 

 or scurfy 11. Chenopodium (p. 206). 



1. SARCOBATTJS Nees. Greasewood. 



A divaricately branched shrub with linear fleshy leaves; staminate flowers naked, 

 in aments; pistillate flowers with a saccate calyx adherent at the 2-lipped apex to the 

 base of the stigmas; calyx laterally margined with an erect 2-lobed border, this finally 

 becoming a broad membranous wing. 



1. Sarcobatus vermiculatus (Hook.) Torr. in Emory, Mil. Reconn. 149. 1848. 



Batis t vermiculatus Hook. Fl. Bor. Amer. 2: 128. 1838. 



Fremontia vermicular is Tore, in Frem. Rep. Exped. Rocky Mount. 95. pi. S. 1845. 



Type locality: "Common on the barren grounds of the Columbia, and particu- 

 larly near salt marshes." 



Range: Washington to Montana, Arizona, and New Mexico. 



New Mexico: Carrizo Mountains; San Juan Valley; Gallup; Zuni; Puertecito; 

 Patterson. Alkaline soil, in the Upper Sonoran Zone. 



This shrub grows to be 2 to 3 meters high, though the commoner form is lower, 

 probably as a result of browsing. The leaves are bright green, terete, and succulent; 

 the young branches are pale yellowish white and rigidly divaricate, the shorter branch- 

 Lets thornlike. Also known as "chico" or "ehico bush." 



2. SALSOLA L. 



Annual herb, densely branched, with rigid awl-shaped Leaves; flowers perfect, 

 with l' bractlete; calyx 5-parted, the segments Anally horizontally winged on the 



Lack; Btamens usually 5; styles 2; Mowers sessile, axillary. 



1. Salsola pestifer A. Wis. in Coulter, New Man. Kooky Mount. 169. L909 



lti BSIAN THIBTJ l . 



Sahola tragus of American authors, not L. 



Type locality: Xot stated. 



Range: Widely introduced as a w 1 in North America; a native of the Old \\ orld. 



\'i w Mexico: Common al Lower altitudes throughout 1 1 1 • - State. 



One of the commonest introduced weed- mi waste lands, along roadsides, and to 

 some extent in fields on the open range. In Borne places Ll covers cultivated fields 



