CIIENOI'ODIACEJE. (G008BFOOT FAMILY.) 377 



margins, not wholly included in the open and even calyx. — Waste places, 

 Columbia, South Carolina, Elliott, and northward. — Stem C- 12' high. 



* * Perennial. 



5. C. Anthelminticum, L. (Worm-Seed.) Stem stout, erect, branch- 

 ing; leaves oblong or lanceolate, acute at each end, sharply toothed ; flowers in 



narrow panicles terminating the branches; seeds with obtuse margins, s oth 



and shining, included in the even calyx. — Waste grounds, Florida, and north- 

 ward. — Stem 2°-3° high. 



2. ATRIPLEX, L. Orache. 



Flowers monoecious or dioecious, either similar to those of Chenopodium, or 

 the fertile flower destitute of a calyx, and enclosed in two ovate or rhombic sep- 

 arate or partially united bracts. Seed vertical, lenticular. Embryo forming a 

 ring around the copious mealy albumen. Radicle inferior. — Herbs, commonly 

 coated with scurfy or silvery scales. Leaves alternate or opposite, oftener has- 

 tate or angled. Flowers in dense spikes. 



I. A. hastata, L. Stem angled, diffusely branched ; leaves petioled, com- 

 monly nearly opposite, hastate or triangular, somewhat toothed, and, like the 

 branches, more or less scurfy; fruiting bracts triangular-ovate or rhomboidal, 

 entire or toothed below, smooth or murieate within. (A. patula, Ell.) — Sea- 

 shore, South Carolina, Elliott, and northward. June -Sept. — Steins l°-2° 

 long 



3. OBIONE, Grertn. 



Chiefly as Atriplex, both in character and habit ; but the two indurated bracts 

 more or less united, often toothed on the edges and crested on the sides, and tin; 

 radicle superior 



1 O. arenaria, Moquin Plant coated with silvery scales ; stem branch- 

 ing from the base, ascending ; lowest leaves opposite, obovate, entire, tapering 

 into a petiole, the others alternate, nearly sessile, lanceolate or oblong, acute, 

 wavy ami slightly toothed ; sterile flowers in close terminal spikes ; the fertile 

 ones in axillary clusters; bracts 3-toothed at the summit, and with two mostly 

 toothed knobs at the sides. (Atriplex arenaria, Nutt.) — Drifting sands along 

 the coast, Florida, and northward. July -Sept. (1)^ Stein l°-2° high. 

 Leaves l'-l£' long. 



2 O. cristata, Moquin. Plant scurfy, green; stems diffusely branched; 

 leaves oblong, mucronate, petioled, denticulate, green above, paler beneath ; 

 bracts roundish, acute, somewhat spiny-toothed on the margins, and with 2-4 

 roundish knobs at the sides. — Sandy shores, South Florida. — Stem l°-l£° 

 high. Leaves J'-l' long. Flowers clustered. 



4. SALICOKNTA, Tourn. Samphire. 



Flowers perfect, lodged in excavations of the thickened upper joints of the 

 stem, spiked ; calyx thin, with a denticulate border, at length spongy, and sur- 

 32* 



