LABI ATM. 119 



downy 



The 



flowers are in dense axillary whorls, with woolly, linear, and 

 hooked bracts, a tubular ten-ribbed calyx divided into ten short, 

 spreading, stiff, and hooked teeth, and a white bilabiate corolla 

 enclosing four stamens. The four achenes are dark-brown. 



The herb has a peculiar aromatic and somewhat musky odour 



aroma 



appears 



Chemical comjjosition. — The plant has been recently examined 

 by J. W, Morrison {Am, Journ. Phann., 1890, p. 327). A 

 proximate analysis gave the following result: — • 



Per cent. 



Fat, wax and traces of volatile oil T 2*05 



Crystalline compound, soluble in ether •48 



Chlorophyl and fat 2*29 



Resin and bitter compounds, soluble in absolute 



alcohpl ...* 1'94 



Mucilasre 494 



t> 



Glucose 



67 



Extractive, soluble in water ,..,...• 5-93 



Albuminoids , .., 4'48 



Pectin and undetermined 5'93 



Pararabin , ...,.,••, 2'30 



Cellulose and lignin 37*48 



Moisture • *.... 6'72 



Ash 24 30 



Loss 



49 



The fat was soluble in hot 95 per cent, alcohol, and melted at 

 46^ C. The wax was insoluble in this solvent, but dissolved in 

 carbon bisulphide. The crystalline principle was extracted 

 from the drug with stronger ether, and purified by repeated 

 crystallization from hot 95 per cent, alcohol, with one or more 

 treatments with animal charcoal. The crystals were insoluble 



