MARSH ROSEMARY. 55 
ways, minute intermediate teeth. The upper 
part of the calyx is scarious and of a pink colour. 
Petals spatulate, obtuse, longer than the calyx, 
pale bluish purple. Stamens inserted in the 
claws of the petals, anthers heart shaped. Germ 
small, obovate, with five ascending styles shorter 
than the stamens. Seed oblong, invested with 
the persistent calyx. Rge Abe Pad 
The root, which is the officinal part of the 
Marsh Rosemary, is one of the most intense and 
powerful astringents’ in the vegetable materia 
niedica. It communicates’ to the mouth an high- 
ly austere and astringent taste, combined with a 
good deal of bitterness. Few vegetable substan- 
ces, when chemically treated, give more distinct 
and copious evidence of the presence of both 
tannin’ and gallie acid. The sulphate of iron 
strikes a fine purple colour with the solution, 
and soon deposits a precipitate, which, on’ expo- 
sure to the air, becomes of an inky blackness. 
Gelatin also throws down a copious, whitish, in- 
soluble precipitate. Resin hardly exists in ‘this 
root, nor any thing else exclusively soluble in al- 
cohol. The vale — sea salt is ee : 
made obvious. ae 
Dr. Mott, Professor of Sling in the Univer- 
sity of New York, has published anv interesting 
