CHENOPODIACEAE (GOOSEFOOT FAMILY) 



965 



8. SaliCOrnia. Flowers sunk in hollows of the axis of the fleshy spike. Calyx utrlcle-lIke, 



* * * Embryo coiled into a spiral ; albumen mostly none ; leaves fleshy, alternate. 



9. Suaeda. Embryo flat-spiral. Calyx wingless. Leaves succulent. 



10. SalSOla. Embryo couical-spiral. Calyx in fruit horizontally winged. Leaves epinescent. 



1. CYCLOLOmA Moq. Winged Pigweed 



Flowers perfect or pistillate, bractless. Calyx with the concave lobes 

 r^^^ ^^^"^"S'y keeled, at length ai)pei)daged witli a broad 

 -S^^ and continuous horizontal scarious wing. Stamens 

 6. Styles o (rarely 2). — A much branched coarse 

 annual, with alternate sinuate-toothed i)eli«»led 

 leaves, and very small scattered sessile tluwers in 

 open panicles. (Name composed of kvkXos, a circle, 

 and \Qfxa, a border, from the encircling wing of the 

 calyx. ) 



1. C. atriplicifblium (Spreng.) Coult. Diffuse 



n-,0 r^ <. ■ V -^ V (1.3-5 dm. high), more or less arachnoid-pubes- 



718. c atnphcifo mm. ^^^^ ^^ glabrate, light green or often deep purple. 



Flowering branch x %. ^ ^_ platyphyllum Moq.) - Sandy soil, Man to s. 



Mature flower from above X 11/3. ^nd.,"^ Ark., and westw. across the plkins ; locally 



introd. eastw. Fig. 718. 



2. k6CHIA Roth. 



Characters nearly as in Cycloloma, but the seed-coat membranaceous and 

 the albumen wanting. (Named for W. D. J. Koch, a German botanist, 1771- 

 1849.) 



1. K. ScoPARiA (L.) Schrad. Annual, erect, puberulent or glabrate, 

 branching ; leaves narrowly lanceolate to linear ; flowers in sniall axillary 

 clusters, sessile ; each sepal at length developing a narrow thickish dorsal wing 

 or appendage. — Frequently cultivated for its bright autumnal color ; locally 

 established as a weed. (Introd. from Eu.) 



3. ROUBIEVA Moq. 



Flowers minute, perfect or pistillate, solitary or 2-3 together in the axils. 

 Calyx urceolate, o-5-toothed, contracted at the apex and inclosing the fruit. 

 Stamens 5, included ; styles 3, exserted. Fruit membranaceous, compressed, 

 glandular-dotted. Seed vertical. Embryo annular. — Perennial glandular herb, 

 with alternate pinnatifid leaves. (Dedicated to Prof. G. J. Boiibieu of Mont 

 pellier.) 



1. R. MULTiFiDA (L.) Moq. Prostrate or ascending, branching and leafy 

 leaves lanceolate to linear (1.2-1.8 cm. long), deeply pinnatifid witli narro\A 

 lobes ; fruiting calyx obovate. — Sparingly introduced in the Atlantic States. 

 (Adv. from S. A.) 



4. CHENOPODIUM [Tourn.] L. Goosefoot. Pigweed 



Flowers all bractless. Calyx 5 (rarely 4) -parted or -lobed, more or less en« 

 veloping the fruit. Stamens mostly 5 ; filaments filiform. Styles 2, rarely 3. 

 Seed lenticular, horizontal (i.e. with its greatest diameter at riglit angles to the 

 floral axis) or vertical ; embryo coiled partly or fully round the mealy albuiiicn. 

 — Weeds, usually with a white mealiness, or glandular. Flowers sessile in 

 small clusters collected in spiked panicles. (Named from x^?"' « goose, and 

 irovs, foot, in allusion to the shape of the leaves.) — Our species are mostly 

 annuals, flowering through late summer and autumn. 



