384 POLYGAMIA MONCECIA. [CL. XXIII. 



CLASS XXIII. POLYGAMIA. 



Flowers furnished with Stamens and Pistils, and others with 

 Stamens only, or with Pistils only, on the same Plant, or on 

 different Plants of the same species. 



Order I. MONCECIA. Flowers different on the same Plant. 



1. A'TRIPLEX. Perfect Flower. Calyx inferior, with five deep 

 segments. Corolla none. Stamens five. Style deeply cleft. 

 Seed one, depressed. 



Pistilliferous Flower. Calyx inferior, with two deep segments. 

 Corolla 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-cor- 

 nered calyx. 



Pistilliferous Flowers. Calyx inferior, deeply divided into 

 two large, flat, egg-shaped segments. Corolla none. Stamens 

 none. Germen superior, compressed. Style short, deeply di- 

 vided; stigmas spreading. Seed one, round, compressed, in- 

 vested by a thin pellicle, and enclosed between the enlarged, 

 heart-shaped leaves of the calyx. Name from , not, and 

 traphein, to nourish. 459. 



1. A. portulacoides. Shrubby Orache. Sea Purslane. Stem 

 shrubby, spreading ; leaves lance-shaped, inclining to inversely 



egg-shaped, entire, 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. Eng. Fl. vol. iv. 

 p. 256. 1456. 



2. A. lacinidta. Frosted Sea Orache. Stem herbaceous, spread- 

 ing; leaves between triangular and egg-shaped, widely toothed, 



mealy beneath. Stems about a foot high, mealy, alternately 



branched: leaves alternate, stalked, entire at the base: perfect 

 flowers in terminal, lobed clusters, their germens 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. Spreading Halbert- shaped Orache. Stem herbace- 

 ous, spreading ; leaves between lance-shaped and triangular, some- 



