464 



CXII. TETEAGONIE^. 



CXII. TETRAGON IE jE:t Fenzl. 



1\ expansa. 



TtU-afjoiiia fruticosa. 



Upper lialf of pistil (mag,). 



Tetfogonia, 

 Tortical section of pistil (mag.). 



Tetiaguitia. 

 Seed cut veitically (mag.). 



Tetragonia, 

 Embryo (mag.). 



Herbaceous, annual, or suffruteseent plants, diffuse, succulent, glabrous or 

 velvety. Leaves alternate or sub-opposite, flat, fleshy, usually entire. Flowees § , 

 regular, axillary or leaf-opposed, solitary or agglomerated, sometimes in a spike or 

 raceme. Caltx superior, 3-5-lobed, fleshy, coloured within, induplicate-valvate in 

 bud. Corolla 0. Stamens epigynous, 1-5-cxd , solitary, or aggregated between 

 the calycinal lobes; filaments filiform-subulate; anthers 2-eelled, didymous, cells 

 oblong, separated at the base and top, opening longitudinally. OvAKT inferior, 

 3-5- (sometimes 8-9-) celled, or 1-2-celled by arrest ; styles as many as the cells, 

 short, stigmatiferous on their inner edge ; ovules solitary in each cell, pendulous by 

 a short funicle from the top of the inner angle, semi-anatropous, micropyle superior, 

 raphe dorsal. Deupe or angular nut crowned by the accrescent calyx, which is often 

 dilated into horns or longitudinal wings ; crown of pericarp naked and marked with 



' See Tribe I. oi Fwoideai, p. 461.— Eu. 



