366 CHENOPODIACE^. (gOOSEFOOT FAMILY.) 



6. OBiONi:, Gaeitn. Obi one. 



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

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

 ing. Herbaceous or shrubby. (Origin of the name unknown, unless from the 

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



1. O. aren^ria, Moquin. (Sand Oraohe.) Silvery-mealy, diffusely 

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

 fmit 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. 



y. SAliICORlVIA, Tourn. Glabswokt. Samphiee. 



riowers 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 slu-ubby low saline plants, with succulent leafless jointed stems, 

 ind opposite branches ; the flower-bearing branchlets forming the spikes. (Name 

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



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

 branched; the joints somewhat thickened at their summit, and with two short and 

 blunt or notched teeth ; spikes elongated, tapering but rather obtuse at the apex. — Salt 

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

 Aug. (Eu.) 



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

 (4' — 8' high) ; the joints A-angled at the base, and with 2 ear-like ovate and pointed 

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

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

 in autumn. (Eu. ?) 



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

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

 the joints truncate, dilated upward, flattish, slightly and obtusely 2-toothed. — Sea- 

 beach, Massachusetts to Virginia, and southward. Sept. 



8. CHEIVOPODiUTA, Moquin. Sea Gooseeoot. 



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

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

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

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

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



1. C mariHina, Moquin. Annual, smooth, diffusely much branched; 

 leaves slender (1' long), acute; calyx-lobes keeled ; seed sharp-edged. (Cheno- 

 podium maritimum, L. Suseda, Moquin, formerly.) — Salt marshes along the 

 sea-shore. Aug. (Eu.) 



