HUMULUS 147 



1 10. HUMULUS. HOPS 



HOPS 



The strobiles of Hu'mulus lu'pulus Linne", carefully dried bearing the whole of 



their natural glandular coating (Fam. transferred to Moraceae, U.S.P. 1900). 



BOTANICAL CHARACTERISTICS. Rough, climbing perennial. Leaves palmately 3- 



to 7-lobed, roughish, ovate. Flowers dioecious, the fertile flowers forming 



a strobile in fruit; calyx, akene, etc., thickly studded with yellowish, resinous 



grains, which give the bitterness and aroma to the hops. 



HABITAT. North Temperate Zone. 



DESCRIPTION or DRUG. Strobile about 30 mm. (ij^ in.) long, cone- 

 shaped, consisting of numerous membranous, greenish-yellow scales 

 attached to a thin, undulating, hairy axis; the scales are oval, leaf- 

 like, translucent, showing delicate veins, and surround a subglobular 

 akene; there are also, covering the surface of the scales at the base and 

 adhering to the zigzag axis, small yellow grains of lupulin, upon 

 which the value of hops depends. Odor strong, peculiar, somewhat 

 narcotic; taste bitter, aromatic, slightly astringent. 

 Powder. See Part iv, Chap. I, B. 



CONSTITUENTS. Lupulin (Lupulinum, U.S.), volatile oil (0.08 per cent.), 

 resin, choline, and tannin. Ash, not exceeding 8 per cent. 



ACTION AND USES. Tonic, anodyne, and slightly narcotic. Dose: % to 

 5 dr. (2 to 20 Gm.), in infusion or tincture. Externally as an anodyne 

 or sedative in fomentation or poultice. 



in. LUPULINUM, N.F. LUPULIN. The granular powder separated from 

 humulus, bright yellow, becoming yellowish-brown with age; mixed with 

 minute scale particles; resinous; odor peculiar, aromatic, like hops, but 

 stronger; taste bitter. Under the microscope each gland is seen to be com- 

 posed of two reticulated hemispheres, one narrow and one round; the narrow 

 one collapses on drying, giving to the granule a hood-shaped appearance. 

 They are filled with an oleoresin, the volatile oil of which contains a trace of 

 valerianic acid, and valerol, which passes into valerianic acid when kept a 

 long time, causing the valerian-like odor of old hops lupamaric acid, Css- 

 H, 6 O 4 . 



ACTION AND USES. Same as hops. Dose: 6 to 15 gr. (0.4 to o.i Gm.), 

 in capsules or pills, the latter of which may be made by simply rubbing 

 the powder with warm water until it becomes adhesive. 



Fluidextractum Lupulini, Dose: 10 to 30 irg (0.6 to 2 mils). 



Oleoresina Lupulini, 3 to 6 IR (0.2 to 0.4 mil). 



112. CANNABIS. INDIAN CANNABIS 



\ 



INDIAN HEMP. HEMP 



The dried flowering tops of the pistillate plant of Can'nabis sati'va Linne" or of the 

 variety indica, Lamarck (Fam. Moraceae), freed from thicker stems and 

 large foliage leaves, and without admixture of more than 10 per cent, of 

 fruits. 



