616 Obdek 106.— AMABAN.TACB.iB. 



10. CHENOPODrNA, Moq. Glasswoet. Flowers $ , bracteolate ; 

 calyx urceolate, 5-parted, fleshy, in fruit subbaccate ; stamens 5.; stigmas 

 2 or 3, sessile ; utricle depressed, inclosed in the calyx ; seed lenticular, 

 horizontal ; albumen 0, or scanty and divided into two portions above 

 and below the flat spiral embryo. — Spiooth, maritime plants, with alter- 

 nate, sessile, fleshy Ivs. and axillary fls. (Chenopodium, L.) 



C. maTitiiua Moq. Branches diffuse, prostrate or erect; Ivs. long, linear, semf- 

 terete, upper shorter; fls. in sessile axillary glomerules, 2 or 3 together; frait oai. 

 inflated ; seed shining. — (J) Salt marshes. Can. to Fla. Sts. 1 to 2t' long or higli, 

 becoming woody at base, southward. Lvs. 6 to 15' long, 1" thick, acute. Pis. 

 very small, green, with roundish calyx lobes. Utricle thin, semitransparent, con- 

 taining a black, shining seed. Aug. (C. maritima L. also Salsola linearis Ell.) 



11. SAL'SOLA, Gaert. Saltwort. (Lat. sal, salt ; the plants con- 

 tain much alkaline salt.) Flowers ^ , with 2 bractlets ; sepals 5, at 

 length winged horizontally on the back, forming a broad, scarious bor- 

 der ; stamens 5 ; styles 2, united at base ; utricle depressed, inclosed in 

 the base of the stellately 5-winged calyx; seed horizontal, globous; 

 embryo spiral (cochleate) with no albumen. — Maritime, fleshy plants 

 with terete lvs. and axillary, sessile fls. 



S. Ekli L. Herbaceous, decumbent; lvs. alternate, subulate; channeled, spinous, 

 smooth; fls. solitary; fruit-calyx wings larger than the sepals, orbicular, spread- 

 ing.-— A rigid, prickly and very branching plant, of the sea-shore, Can. to Ga. 

 St. r to 2f high, diffuse. Lvs. about an inch long, sessile, ending with a spine. 

 Fla. green, succulent, sessile, bracteate, the wings in fruit pale roseate, 1^" long. 

 Seed with a thin testa and a green embryo coiled like a little snail shell. 

 j}. Caeoliniana. Suberect, glabrous, often purplish; lvs. dilated at base; 

 fruit-calyx wings rose-purple.; — ^Southward. (S.. CarolinianatWalt.) 



Ordee CVI. AMARANTACEJE. Amaeanths. 



Heris weed-liko with opposite or alternate leaves, and a bracteate, spiked or 

 capitate inflorescence. Flovjers generally with an imbricated involucre of 3 dry, 

 scarious bracts. Sepals 3 to 5 (rarely but 1), persistent and often colored, unchanged 

 in fruit. Stamens 3 to 5 fertUe, hypogynous. Ovary compressed, 1-oelled, 1 to oo- 

 oviiled. StyU 1. Fruit a utricle, caryopsis or berry. Seed vertrioal, albuminous 

 Emlryo annular. 



Illustrated in figs. ISS, 406. 



Genera 46, apecies 4S0, most abundant within tho tropics. Their properties are not important 

 A few are ouLtivated for their riohly-colorcd imperishaulc flowers ; others are mere weeds. 



TMBES AND GENEEA. 



I. CELOSIEja. Anthers 2-celled. Ovary many-oTuled. (Cultivated) Ckiosia. 1 



IIj ACIIYEANTHEjE. Anthers 2-o<!llod. Ovary one-ovulcd. Leaves alternate. (*) 



* Flowers monrecious or polygamous.— Utrieie circumscisBilo Amaeahtbs. 2 



— Utricle indchisccnt Euxolus. S 



* Flowers direcious.— Utricle indehisoent and vsilveless Aosiba. 4 



— Utricle dehiscent, circumscissilo Montblia. 5 



III-. G0MPHEENEJ3. Anthers one-colled. Ovary one-ovuled. Leaves opposite, (a) 



a Sterile stamens none.— (Flowers white, paniculate) Ieesinb. 6 



a Sterile stamens none.— (Flowers crimson, &c. Capitate. Cultivated) Gomi'ueena. 7 



a Sterile stamens 5, the 5 fertile in a tube.— Heads axillary TKiANrnERA. S 



—Spikes terminal aj)d axillary FEiBLicnu. 9 



1. CELO^SIA, L. Coxcomb. (Gr. K^Aeof, shining ; characteristic of 

 tho brilliant colors of some species.) Flowers perfect, 3-bracted ; calyx 

 of 5, erect-spreading sepals; stamens 5; anthers 2-celled; stigmas- 2. 



