g^ CHEXOPODIACILE. Atriphx. 



13. A. expansa, Watson. Resembling the last, but always erect and with more 

 widely spreading virgate branches : leaves triangular and somewhat hastate, abruptly 

 acute, sessile or nearly so : staminate spikes usually slender and interrupted, naked 

 above : fruiting bracts more compressed, the sides often unappendaged and strongly 

 reticulated. — Rev. Chenop. 116. 



Santa Barbara County {Torrcy) ; dry river-bed near vSan Diego (Palmer) ; and eastward to 

 S. Colorado and New Mexico. 



* * * Perennials, mostlij dla>ciot(^ and woody, densely scvrfij : leaves alternate : 

 radicle mostbj superior or ascendinrj. 



■i- Fruit! nq bracts with a toothed margin and the sides muricate : leaves entire. 



14. A. polycarpa, Watson. Erect, shrubby at base, 2 or 3 feet high, diffusely 

 much braneUfd ; l)ranches terete, slender, rigid and leafy : leaves thick, obovate to 

 spatulate, 1 to 5 lines long, mostly very small and fascicled, obtuse, sessile : flowers 

 in close panicled naked spikes : fruiting bracts somewhat orbicular, 1 to 1 1 lines 

 lono-, often much broader, white-scurfy and somewhat spongy, the broad margin 

 irregularly and sharply toothed, and the sides with two or more conspicuous toothed 

 crests: seed half a Kne broad. — ^ Rev. Chenop. 117. Obione pol//carpa, Torrey, 

 Pacif. R. Rep. iv. 130. 



San Felipe Canon (Palmer) ; near Fort Mohave (Cooper), and eastward on \Villiams River and 

 in the valley of the Gila, Emory, Bigeloiv. 



A. Pai.meri, Watson (Proc. Am. Acad. xi. 145). Stout and shrubby at base : leaves obovate 

 or oblanceolate, rounded or acutish above, attenuate to a short petiole, ^ to H inches long : huit- 

 incf bracts cuneate-orbicular, compressed, not united, \\ lines broad, margined above the middle 

 an'd irregularly gash-toothed, rarely somewhat muricate. — Guadalupe Island, Palmer. 



A. NuTT.\LLli, Watson (Kev. Chenop. 116. A. canescens, Nutt.). Erect, branching from the 

 shrubby base : leaves oblong-spatulate to narrowly oblanceolate, ^ to 2 inches long, obtuse or 

 acutish, narrowed to a short petiole or sessile : bracts ovate, strongly convex, united, 1^ to 2 lines 

 long, acute or acuminate, usually more or less margined and toothed, and the sides more or less 

 crested. Veiy frecpent from Is ortheastern Nevada to Colorado and the Saskatchewan. 



^_ +. Fruiting bracts small, orbicular or ovate, menibranons or spongy, not mar- 

 gined or muricate: leaves entire. 



++ Moncecious, procumbent and mostly herbaceous : leaves lanceolate, small, the 

 lower opjjosite, sessile. 



15. A. Californica, Moquin. Much branched from the base, the slender leafy 

 stems a foot long or less, densely mealy : leaves ovate- to linear-lanceolate, 3 to 

 8 lines long, acute at each end : flower-clusters all axillary, the upper ones more 

 staminate : "^calyx deeply 4-cleft : fruiting bracts rhombic-ovate, membranous, dis- 

 tinct, 1.^ lines long, somewhat convex': styles included: seed half a line broad: 

 radicle iiiferior. — DC. Prodr. xiiil 98 ; Watson, h c. 110. 



Near the coast, from San Francisco Bay to San Diego. 



•H- ++ Dia>ciovs, erect and shrubh/ : leaves ovate to rhombic or triangvlar-has- 



tafe, petioled, alternate : flowers in naked axillary and terminal jx/nicled 



spikes. 



1 fi. A. lentiformis, Watson. Diffusely branched, 2 to 1 2 feet high, the branches 



terete with divaricate rigid occasi Dually somewhat spinescent branchlets, closely 



scurfy : leaves ovate- to oblong-rhombic or somewhat hastate, cuneate at base, | to 



U inches long : flower-clusters small : calyx 5-parted : fruiting bracts orbicular, 1 or 



2^ lines broad", stronglv compressed, united to above the middle, the free margins 



obscurely crenate : seed dark, | line broad, —Rev. Chenop. 118. Obione lenti- 



formisi, Torrey, Sitgreaves Rep. 169, t. 14. 



In the desert region from Pose Creek (Hcermann) to the southern boundary (Palmer), and east- 

 ward through Arizona. 



