SPECIES AND VARIETIES. 307 



O. elatior, a tall yellowish species, with the stamens hairy ; 

 O. rubra, red-brown ; O. caryophyllacea, light or dark -brown ; 

 and O. minor, light yellowish-brown, the three latter being 

 seldom over a foot high, with a short flower- spike. 



(248) Salicornia. GLASS WORT. 



S. herbacea : annual ; stems erect, glabrous, succulent, 

 jointed, leafless, six inches high, with few erect branches, or 

 when luxuriant branching from every joint : often procumbent 

 and rooting, extending to a foot or more, and in favourable 

 situations hardening and acquiring the appearance of under- 

 shrubs, but probably not lasting beyond the second year ; 

 flowers immersed in the upper joints forming terminal, suc- 

 culent, cylindrical spikes, each joint having six flowers, three 

 in a triangle on each side, the perianth succulent, flat, nearly 

 closed at the top, the stamens protruding through the mi- 

 nutely three- or four-toothed orifice; style included, divided 

 into 2-3 stigmas ; nut enclosed in the unchanged, succulent 

 perianth. Salt-marshes and muddy sea-shores. Fl. August, 

 September. 



(249) Suseda. 



S. maritima : annual or biennial ; stems erect or procum- 

 bent, much branched, seldom a foot high ; leaves acute, semi- 

 cylindrical, succulent; flowers small, green, sessile, solitary, 

 or 2-3 together in the axils of the leaves. Salt-marshes and 

 maritime sands. Fl. July to September. 



(250) Salsola. SALTWORT. 



S. Kali : annual ; stems procumbent, glabrous, much 

 branched, -1 foot long; leaves awl-shaped, ending in a 



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