Class XXIII. POLYGAMIA. 



Stamens and Pistils united in the same 



flower J besides others in separate 



Jiowers, having a different structure 



in their accessory parts, on the same 



or different plants. 



Order L MO^OECIA. Flowers different 

 on the same plant. 



462. ATRIPLEX. United f, Cal. inferior, in 5 deep 

 segments. Co?-, none. Stam. 5. S^z/Z^ deeply cloven. 

 Seed 1, depi'essed. 

 Fert. Jl. Cal. inferior, in 2 deep segments. Co): 

 none. Si7/le deeply cloven. Seed 1, compressed. 



POLYGAMIA MONOECIA. 

 462. ATRIPLEX. Orache. 



Li7in.Gen.74D. Juss.85. FLBr.1090. Toum.t.286. Lam.t.850. 

 GcETtn. t. 75. 



Nat. Ord. Holerace<^. Liinn. 12. AtrtpHces. J uss. 29. C/ie- 

 iiopodece. DeCand. 100. Br. Prodr. 405. Next akin to 

 Chenopodium. v. 2. 9. 



United^. Cal. inferior, concave, permanent, in 5 deep, 

 equal, ovate, concave segments, thin or membranous at 

 the edges. Cor. none. Filam. 5, awl-shaped, from the 

 bottom of the calyx, opposite to its segments, and about 

 as long. Anth. of 2 round lobes. Germ, superior, orbi- 

 cular, often very imperfect. Sij/le short, deeply divided. 

 Stigmas simple, spreading. Seed 1, orbiculai-, depressed, 

 wrapped in a thin close pellicle, and covered by the closed, 

 permanent, 5-angled calyx. Our British species scarcely 

 form any seed in these powers. 



