430 AMARANTACEjE. (_ AMARANTH FAMILY.) 



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

 far southward. Sept. 



4. FRCELICHIA, Moench. 



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

 crested lengthwise, ortubercled 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, Muquin. Koot annual; stem leafless above (1-3 

 high); leaves lanceolate, silky-downy beneath ; spikeleta 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, Moq. 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. 



OKDER 87. CHENOPODIACE^E. (GOOSEFOOT FAMILY.) 



Chiejiy kerbs, of homely aspect, more or less succulent, tcith mostly alter- 

 nate leaves and no stipules nor scarious bracts, minute greenish flowers, icith 

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

 occasionally fewer, 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 rin<j around the mealy albumen, when there is any, or else condupli- 

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

 stigmas 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 ; calyx 

 obvious, persistent. Seed-coa crustaceous. 



1. Cycloloma. Calyx 5-cleft, in fruit surrounded by a horizontal continuous membraua- 



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



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

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



4. Koubieva. 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 bracts 



5. Atriplex. Fruiting bracts with margins often dilated and sides often muricatfc 



i- +- -t- Flowers perfect, 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 Lorseshoe-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. Sureda. Embryo flat-spiral. Calyx wingless. Leaves succulent. 



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



