Order 106.— AMARANTHS. 293 



2 Flowers all perfect and alike — (b) 



2 Flowers of two sorts, monoecious or dioecious (c) 



a Leaves ovate, cordate, petiolate, thick, u S. Am. Mexican Vine. Boussingaul'tia. 



b Pericarp rough and corxy. Root fusiform, fleshy. Lvs. largt\ (2) Beet. Beta. 



b Pericarp smooth, thin. Calyx bractlcss, not appendaged, 5-cleft, enclos- 

 ing the utricle which is lens-shaped and horizontal. Fls. minute, in 

 panicled spikes. (1) u Pigweed, Oak-of-Jeritsalem, etc. Chenopo'dium. 



b Pericarp smooth, thin. Calyx of 5 distinct sepals, often becoming berry- 

 like in fruit. Fls. glomerate. ® Stt'awber?^ Blite. Blit0M. 

 c Fruit enclosed In a hardened calyx without bracts. Styles 4. Leaves has- 

 tate-lanceolate, to sagittate, petiolate. Fls. axillary. Spinage. Spina'cia. 

 c Fruit naked (no calyx) between 2 bracts. Styles 2. Herbs (sometimes 

 shrubby) often mealy or scurfy. Lvs. sometimes opposite, triangular, 

 etc. At'kiplex. 



d Stems jointed, leafless, having the flowers at the joints. Stamens 1 or 2. 



Fleshy, herbs with opposite branches. Seaside. Samjyhire. Salicou'nia. 



d Stems with leaves linear fleshy, and profusely branched. Flowers mi- 

 nute, sessile, clu^^tered. Stamens 5. (T) In salt marshes. Glasswort. Chenopodi'na. 



d Stems with terete awl-shaped leaves tipped with a spine. Calyx-wing- 

 ed on the back, wings persistent and purplish in fruit. Saltwort. Sal'sola Kali. 



Order OVI. AMARANTAOE.^. Amaranths. 



Herbs very similar to the Goose-foots, but with an imbricated involucre 

 of 3 dry scarious bracts added to the flowers. Style 1. Fruit a 1-seeded 

 utricle, caryopsis or berry. Flowers very small and numerous. 



Analysis of the Genera. 



§ Anthers 2-celled. Ovary with 00 ovules, utricle go - seeded. CocJcscomb. Calo'sia. 

 § Anthers 2-cellcd. Ovary 1-ovuled, utricle 1-seeded. Leaves alternate. . . .(b) 

 § Anthers Icelled. Ovary 1-ovuled, utricle 1-sceded. Leaves opposite (a) 



* Flowers monoecious or polygamous, all with a calyx and stamens. Amahan'tus. 1 



* Fls. dioecious, the pistillate with neither calyx nor stam. Water Hemp. Acni'da. 

 a Sterile stamens 5, the 5 fertile joined into a tube. Heads axillary. South. Telanthe'ra. 

 a Sterile stam. 5, the 5 fertile in a tube. Spikes terminal and axillary. W. Fkoelich'ia. 

 a Sterile stamens none.— b Flowers panicnlate, white. River banks. W. Iresi'ne. 



— b Fls. capitate, crimson, &c. Glebe Amaranth. Gomphre'na. 



1. AMARANTUS. Amaranth. 



Calyx of 5 or 3 sepals, with 3 bracts at base. Stamens 3-5. Stigmas 

 2 or 3. Fruit a 1-seeded utricle Avhicli is regularly circumscissile, or tears 

 open, or does not open at all. — We find 11 si)ecies (see Botanist and Florist, 

 p. 283), among which are the White Pigweed and other weeds of the gar- 

 den, and a few showy herbs like the following : 



