CHENOPODIACE^E. (GOOSEFOOT FAMILY.) 377 



margins, not wholly include'd in the open and even calyx. Waste places, 

 Columbia, South Carolina, Elliott, and northward. Stem 6'- 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, smooth 

 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. 



1. 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 muricate within. (A. patula, Ell.) Sea- 

 shore, South Carolina, Elliott, and northward. June -Sept. Stems l-2 

 long. 



3. OBIONE, Gsertn. 



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 the 

 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 and 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. (I) Stem 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 '- 1' 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* 



