430 AMARANTACE^. (^AMARANTH FAMILY.) 



broad bracts and densely silky-villous at base. — Dry banks, Ohio to Kan., and 

 far southward. Sept. 



4. FR (ELI CHI A, Moench. 



Flowers perfect, 3-bracted. Calyx tubular, 5-cleft at the summit, below 2-5- 

 crested lengthwise, or tubercled and indurated in fruit, enclosing the indehis- 

 cent thin utricle. Filaments united into a tube, bearing 5 oblong 1 -celled 

 anthers, and as many sterile strap-shaped appendages. — Hairy or woolly herbs, 

 with opposite sessile leaves, and spiked scarious-bracted flowers. (Named for 

 J. A. Froelich, a German botanist of the last century.) 



1. F. Floridana, Moquin. Root annual; stem leafless above (1-3° 

 high); leaves lanceolate, silky-downy beneath ; spikelets crowded into an in- 

 terrupted spike ; calyx very woolly, becoming broadly winged, the wings ir- 

 regularly toothed. — Dry sandy places, S. Minn, to 111., Col., Tex., and Fla. 



2. F. gracilis, ^Nloq. More slender, with narrow leaves, the spikelets 

 smaller, and the crests of the matured calyx of nearly distinct rigid processes. 

 — Col. to Tex., and is reported from Kansas. 



Order 87. CHENOPODlACEiE. (Goosefoot Family.) 



Chiefly herbs, of homely aspect, more or less succulent, iclth mostly alter- 

 nate leaves and no stipules nor scarious bracts, minute greenish Jioiuers, with 

 the free calyx imbricated in the bud ; the stamens as many as its lobes, or 

 occasionally feiver, and inserted opposite them or on their base; the 1-celled 

 ovary becoming a 1-seeded thin utricle or rarely an achene. Embryo coiled 

 into a ring around the mealy albumen, when there is any, or else condupli 

 cate, or spiral. — Calyx persistent, mostly enclosing the fruit. Styles or 

 stio-mas 2, rarely 3-5. (Mostly inert or innocent, weedy plants ; several 

 are pot-herbs, such as Spinach and Beet.) 



» Embryo coiled into a ring about usually copious central albumen. Leaves flat, not spiny. 



Stem not jointed. 



•♦-Flowers perfect (or stamens only occasionally wanting), clustered or panicled ; calj-x 

 obvious, persistent. Seed-coa crustaceous. 



1. Cycloloina. CaljTC 5-cleft, in fruit surrounded by a horizontal continuous menibrana- 



ceous wing. Seed horizontal, crustaceous. Leaves sinuate-toothed. 



2. Kocliia. Like n. 1, but wing 5-lobed and seed-coat membranaceous. Leaves entire. 



3. Chenopodium. Calyx 3-5-parted, unchanged or becoming fleshy in fruit. 



4. Roubieva. Calyx 3-5-toothed, becoming saccate. Leaves pinnatifid. 



!- +■ Flowers monoecious or dioecious ; the staminate in clusters, mostly spiked ; the pistil- 

 late without calyx, enclosed between a pair of appressed axillary l)racts 



5. Atriplex. Fruiting bracts with margins often dilated and side.s often niuricatt, 



^- 4- 4- Flowers jierfect, naked or 1-sepaled, solitary in the axils of the reduced upper leaves 



6. Corispermum. Pericarp oval, flattened, adherent to the vertical seed. Leaves linear. 

 ** Embryo narrowly horseshoe-shaped or conduplicate no albumen. Stem fleshy, jointed; 



leaves reduced to opposite fleshy scales or teeth. Flowers densely spiked, perfect. 



7. Salicornia. Flowers sunk in hollows of the axis of the fleshy spike. Calyx utricle-like 



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



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



9. Salsola. Embryo conical-spiral. Calyx in fruit horizontally winged. Leaves spinescent 



