27. Chenopodiaceae 89 



8. Leaves small, entire or hastately toothed, the upper 

 ones smaller, elliptical, cuspidate; seeds puncticu- 

 late, 1 mm in diameter; diy soil, locally throuii,hout 



111. July-Sept C. beiiandicri Moq. 



5. Sepals only slightly or not at all keeled. 



10. Lea\es bright green on both surfaces; seeds 1-1.5 mm 



in diameter. 



11. Leaves entire, ovate to elliptical; flowers in nmcli- 



branched axillary panicles; along railroads; nat. 



from Eur.; Murphysboro, Jackson Co., R. H. 



Mohlenbrock C. polyspcrinum L. 



1 1. Leaves sagittate, hastate, or deltoid; flowers usually 

 in terminal paniculate glomerules; seeds all hori- 

 zontal; leaves very coarsely toothed; waste places; 

 nat. from Eur.. July-Oct. Nettle-leaved Goose- 

 foot C. tuurale L. 



10. Leaves pale green, sinuate-margined, 1-3 cm long, the 

 lower surface whitish-mealy; stem low, spreading or 

 prostrate; seeds 0.6-0.8 mm in diameter, sharp- 

 edged; waste places; nat. from Em. July-Sept. 



Oak-leaved Goosefoot C. glaucum L. 



4. Leaves sharply divaricately lobed or coarsely few-toothed, 

 thin, large, green, glabrous; sepals slightly keeled, incom- 

 pletely covering the seed; pericarp firmly adherent; seeds 

 1.5-2 mm in diameter; fields, woods, or waste ground; nat. 



from Eur. July-Sept. [C. gigantospermum Aellen] 



C. hybridum L. 



2. Cycloioma Moq. — Winged Pigweed 

 C. atriplicifolium (Spreng.) Coult. Sandy soil, local. July-Aug. 



3. Kochia Roth 

 K. scuparia (L.) Roth. A weed in waste places about towns; nat. 

 from Eurasia. July-Oct. — The var. culta Farw. [K. trichophylla 

 Voss], summer-cypress or burning bush, with compact symmetrical 

 ovoid habit, the foliage turning piaple-red in autumn, is occasionally 

 apparently spontaneous, but not established. 



4. Corispermum L. — Bugseed 

 C. hyssopifolium L. Sandy soil, local; Cook, Lake, Mason, and 

 Menard counties. July-Sept. [Incl. C. nitidurn sensu auth., non Kit.]. 



5. Atriplex L. 



1. Bracts enclosing the fruit somewhat succulent. 

 2. Bracts triangular, not conspicuously veined. 



3. Leaves lanceolate: bracts cuneate at base; waste ground; nat. 

 from Eur. July-Aug A. patula L. 



