CHENOPOD1ACEAE (GOOSEFOOT FAMILY) 365 



8. Salicornia. Flowers sunk In hollows of the axis of the fleshy spike. Calyx utricle-like. 



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



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



10. Salsola. Embryo conical-spiral. Calyx in fruit horizontally winged. Leaves splnescenU 



1. CYCLOLdMA Moq. WINGED PIGWEED 



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

 strongly keeled, at length appendaged with a broad 

 and continuous horizontal scarious wing. Stamens 

 6. Styles 3 (rarely 2). A much branched coarse 

 annual, with alternate sinuate-toothed petioled 

 leaves, and very small scattered sessile flowers in 

 open panicles. (Name composed of i//cXos, a circle, 

 and XtD/za, a border, from the encircling wing of the 

 calyx.) 



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

 (1.3-6 dm. high), more or less arachnoid-pubes- 

 cent or glabrate, light green or often deep purple. 

 Flowering branch x %. (C platyphyllum Moq.) Sandy soil, Man. to s. 



Mature flower from above x 1%. ^ * ^ ^ ^stw.' across the plains; locally 



in trod, eastw. FIG. 718. 



2. KdCfflA 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 small 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. (In trod, from Eu.) 



3. ROUBIEVA Moq. 



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

 Calyx urceolate, 3-6-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. Roubieu of Mont- 

 pellier.) 



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

 leaves lanceolate to linear (1.2-1.8 cm. long), deeply pinnatifid with narrow 

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

 (Adv. from S. A.) 



4. CHENOPdDIUM [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 right angles to the 

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

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

 small clusters collected in spiked panicles. (Named from x^"i a goose, and 

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

 annuals, flowering through late summer and autumn. 



