384 POLYGAMIA MONOECIA. [CL. XXIII. 



CLASS XXIII. POLYGAMIA. 



Flowers furnished with Stamens and Pistils, and others -with 

 Stamens only, or -with Pistils onh/, on the same Plant, or 

 on different Plants of the same Species. 



Order I. MONCECIA. Plovers different oh the same Plant. 



1. ATRIPLEX. Perfect Flower. Calyx inferior, with five deep 

 segment!. Corolla none. Stamens five. Style deeply cltft. Seed 

 one, depressed. 



Pistittijerous Flower. Calyx inferior, with two deep segments. Co- 

 re/to none. Style deeply cleft. Seed one, compressed. 



POLYGAMIA. MONCECIA. 



1. A'TRIPLEX. 



Perfect Flowers. Calyx inferior, permanent, deeply divided 

 into five equal, egg-shaped, concave segments, membranous at the 

 edges. Corolla none. Filaments five, awl-shaped, as long as the 

 calyx. Anthers round, two-lobed. Germen superior, round, 

 often imperfect. Style short, deeply divided ; stigmas simple, 

 spreading. Seed one, round, depressed, invested by a thin pellicle, 

 and covered by the closed, permanent, five-cornered calyx. 



Pistilliferous Flowers. Calyx inferior, deeply divided into two 

 large, fiat, egg-shaped segments. Corolla none. Stamens none. 

 Germen superior, compressed. ' Style short, deeply divided ; stig- 

 mas spreading. Seed one, round, compressed, invested by a thin 

 pellicle, and enclosed between the enlarged, heart-shaped leaves of 

 the calyx. Name from a, not, and trap/iein, to nourish. 459. 



1. A. portulacoides. Shrul>by Orache. Sea Purslane. Stem shrubby, 

 spreading ; leaves lance-shaped, inclining to inversely egg-shaped, en- 

 tire, tapering at the base. Stems from one to two feet high, branched, 



ascending: leaves opposite, stalked, mealy: clusters axillar and terminal : 

 flowers small, yellowish. A shrub: flowers in July and August: grows 

 in muddy places on the sea-coast: not common. Eng. Bot. vol. iv. 

 pi. 261. Etig. Fl. vol. iv. p. 256. 1456. 



2. A. lacinidta. Frosted Sea Orache. Stem herbaceous, spreading ; 

 leaves between triangular and egg-shaped, widely toothed, mealy beneath. 

 Stems about a foot high, mealy, alternately branched : leaves alter- 

 nate, stalked, entire at the base : perfect flowers in terminal, lobed clus- 

 ters, their gerraens commonly about five : fertile flowers axillar, several 

 together. Annual < flowers in July : grows in sand, on the sea-coast : 

 frequent. Eng. Bot. vol. iii. pi. 165. Eng. Fl. vol. iv. p. 257. 1457. 



3. A. pdtula. Sheading H 'albert-shaped Orache. Stem herbaceous, 

 spreading; leaves between lance-shaped and triangular, somewhat hal- 



bert-shaped ; calyx of the fruit tuberculated at the sides. Stem and 



leaves dull-green, slightly mealy, often reddish. Annual : flowers in 



