Class V. Order II. 65 



Which it penetrates with lateral roots so as to derive nourish- 

 ment from their juices. Its small umbels of flowers appear in 

 June and July. 



78. SALSOLA. 

 SALSOLA CAROLINIANA. Mich. American Saltwort. 



Herbaceous, decumbent ; leaves subulate, spin- 

 ous, smooth, dilated and entire at base ; calyx ax- 

 illary, margined. 



A stiff, prickly plant of the sea shore. Stems much branch- 

 ed, angular, smooth. Leaves numerous, short, rigid, awl-shap- 

 ed and very acute, spreading, smooth and entire, dilated at base, 

 sessile. The lower leaves are deciduous, so that when the 

 fruit is ripe, only the floral leaves remain. These are three in 

 number to each flower, resembling the other leaves, but short- 

 er, their base dilated and perfectly entire, not repand as in Salsola 

 Kali. The calyx is externally compressed into a broad, mem- 

 branous margin, flattish, but rising in the centre. Seed enclos- 

 ed in the calyx, cockle-shaped from its spiral cotyledons. 

 Salt marshes. July, August. 



Plants of this genus are used in the manufacture of Soda. 



79. CHENOPODIUM. 

 CHENOPODIUW ALBUM. L. White Goosefoot. Hog-weed* 



Leaves rhomboid-ovate, eroded, entire behind, 

 the upper ones oblong, entire ; seeds smooth. Sm. 



A common weed in cultivated, and waste ground. Stem 

 channelled, branched ; leaves mealy, the lower ones unequally 

 toothed above, the upper ones smaller, entire. Bunches of 

 flowers erect, green or mealy. July. -Annual. 



9 



