566 CHENOPODIACE^E. (GOOSEFOOT FAMILY.) 



6. OB I ONE, Gaertn. OBIONB. 



Flowers nearly as in Atriplex, but the more or less united bracts investing the 

 fruit often inflexed or indurated and nod-like ; the radicle superior and project- 

 ing. Herbaceous or shrubby. (Or.^in of the name unknown, unless from the 

 river Obi, in Siberia, whence the original species came.) 



1. O. arcnaria, Moquin. (SAND ORACUE.) Silvery-mealy, diffusely 

 spreading ; leaves oblong, narrowed at the base, nearly sessile ; bracts of the 

 fruit broadly wedge-shaped, flat, united, 2-3-toothed at the summit, and with 

 a few prickly points on the sides. Sea-beach, Massachusetts to Virginia, 

 and southward. August. 



7. SALICORNIA, Tourn. GLASSWORT. SAMPHIRE. 



Flowers perfect, 3 together, sessile and immersed in hollows of the thickened 

 upper joints, forming spikes ; the two lateral sometimes sterile. Calyx small 

 and bladder-like, with a toothed or torn margin, at length spongy and narrowly 

 wing-bordered, enclosing the flattened fruit. Stamens 1 - 2 : styles 2, partly 

 united. Seed vertical, with the embryo coiled or bent into a ring. Herbaceous 

 or somewhat shrubby low saline plants, with succulent leafless jointed stems, 

 and opposite branches ; the flower-bearing branchlets forming the spikos. (Name 

 composed of sal, salt, and cornu, a horn; saline plants with horn-like branches.) 



1. S. lierbaccil, L. Annual, erect or ascending (G'-12' high), much 

 branched ; the joints somewhat thickened at their summit, and with t/co s/iort and 

 blunt or notched teeth ; spikes elongated, tapering but rather obtuse at the a]>e.r. Salt 

 marshes of the coast, and at Salina, New York, and other interior salt springs. 

 Aug. (Eu.) 



2. S. Iimcroimta, Lag.? Bigelow. Annual, erect, sparingly branched 

 (4' -8' high) ; the joints 4-angled at the base, and with 2 ear-like ovate and j toil ded 

 teeth at their summit; spikes shoi-t and thick, obtuse. (S. Virginica, Nutt., not of 

 L.) Salt marshes, Maine to New York. Sept. Plant turning deep crimson 

 in autumn. (Eu. ?) 



3. S. ailibigua, Michx. Perennial, herbaceous, or a little woody, pro- 

 cumbent or creeping, lead-colored, with flexuous ascending branches (3' -6' high) ; 

 the joints truncate, dilated upward, flattish, sliahlltf and obtusely 2-toolhcd. Sea- 

 beach, Massachusetts to Virginia, and southward. Sept. 



8. CHENOPODtNA, Moquin. SEA GOOSEFOOT. 



Flowers perfect, solitary or clustered in the axils of the leaves. Calyx 5- 

 parted, not appendaged, fleshy, becoming somewhat inflated and closei over the 

 fruit (utricle). Stamens 5. Stigmas 2 or 3. Seed horizontal, with a flat-spiral 

 embryo, dividing the scanty albumen into 2 portions. Fleshy maritime plants, 

 with alternate nearly terete linear leaves. (Name altered from Chenopodium.) 



1. C. Iliai'itima, Moqnin. Annual, smooth, diffusely much branched; 

 leaves slender (!' long), acute ; calyx-lobes keeled ; seed sharp-edged. (Cheno- 

 podium maritiinum, L. Suteda, Moquin, formerly.) Salt marshes along the 

 sea-shore. Aug. (Eu.) 



