118 CHENOPODIACEAE 



N. Y. to Ga., the I. T. and T^-x..— Pennsylvania : DEi,awarE, Castle 

 Rock. 



Order 10. CHENOPODIALES. 



Fruit a utricle, achene or berry, sometimes an anthocarp, not valvate or merely 

 circumscissile. 

 Fruit various, not an anthocarp. 

 Fruit utricular. 

 Bracts not scarious : stipules wanting. 

 Stamens inserted at the base of the ovary or in the margin of a short 



hypanthium. Fam. i. Chenopodiaceak. 



Stamens inserted on the margin of a hypanthium which ultimately 

 exceeds the sepals in length. Fam. 2. Scleranthaceae. 



Bracts, or stipules when present, scarious. 

 Stipules wanting : sepals scarious. Fam. 3. Amaranth.-vceae. 



Stipules present : sepals herbaceous or scarious-margined. 



Fam. 4. Illecebraceab. 

 Fruit baccate or an achene, or aggregate. Fam. 5. Phytolaccaceae. 

 Fruit an anthocarp, the achene surrounded by the calyx-tube. 



Fam. 6. Nyctaginaceae. 

 Fruit a capsule dehiscent by apical or longitudinal valves. 



Ovary several-celled : corolla wanting. Fam. 7. Aizoaceae. 



Ovary i-celled ; corolla mostly present. 

 Sepals 2 : leaves mostly alternate. Fam. 8. Portulacaceae. 



Sepals 4 or 5 ; leaves mostly opposite. Fam. 9. Caryophyllaceae. 



Famii,y I. CHENOPODIACEAE Dumort. Goosefoot Family. 



Embryo annular or conduplicate, neither spiral nor coiled : endosperm copious. 

 Fruit enclosed by the calyx or equalled by the sepals or bractlets. 

 Flowers perfect or some pistillate ; calyx fleshy, herbaceous or mem- 

 branous. 

 Mature calyx without a horizontal wing. 

 Sepals or calyx-lobes longer than the tube. 

 Calyx herbaceous, slightly fleshy in fruit. i. CHENOPODnjM. 



Calyx very fleshy and bright red in fruit. 2. Blitum. 



Sepals or calyx-lobes shorter than the tube. 

 Stigmas 3 : leaf-blades pinnatifid. 3. Roubieva. 



Stigmas 2 : leaf-blades entire. 4. Kochia. 



Mature calyx with a broad horizontal wing. 5. Cycloloma. 



Flowers dioecious or monoecious : pistillate flowers without a calyx : fruit 

 enclosed by 2 bractlets. 6. Atriplex. 



Fruit much surpassing the calyx. 7. Corispermum. 



Embryo spirally coiled : endosperm wanting or scant. 

 Mature calyx wingless : leaf-blades not spine-tipped. 8. DONDIA. 



Mature calyx with a horizontal wing : leaf-blades spine-tipped. 



9. Salsola. 

 1. CHBNOPODITJM L- 

 A. Embryo forming a complete ring : plants neither glandular nor aromatic, 

 a. Seed horizontal. 

 *Seed and pericarp firmly attached together, 

 t Flowering branches longer than the accompanying leaves : mature se- 

 pals keeled. 



