300 



WEEDS AND USEFUL PLANTS. 



gin embracing the ovary. Nuts roundish-ovoid, inclosed in the persis- 

 tent truncate calyx. Cotyledons linear, spirally involute. 



1. H. Lu'pulns, L. Leaves mostly 3-lobed, cordate at base, petiolate, 

 scabrous. 



HOP. Hop-vine. 



Fr. Houblon. Germ. Der Hopfen. Span. Hoblon. 



Root perennial, branching. Stem 10-15 or 20 feet long, several from the same root (or 

 rhizoma), slender, volubile. somewhat angular and mostly twisted, retrorsely aculeate, 

 with slender branches above. Leaves 3-5 inches long, generally opposite the upper 

 ones often alternate and not lobed, all very scabrous on the upper surface ; petioles 1-2 

 or 3 inches long ; stipules ovate-lanceolate, connate below, free at summit. Staminate 

 flowers in oblong panicles. Pistillate flowers in pendulous ovoid-oblong bracteate strobiles, 

 or aments, which are proverbially numerous and crowded (" as thick as hops "), 1-2 in- 

 ches long at maturity ; bracts orbicular or broadly-ovate, with a short abrupt acumina- 

 tion. 



Cultivated, but indigenous in most parts of the United States. 

 ber. 



Fl. July. Fr. Septom- 



Obs. The value of the Cones, or Aments, of the pistillate plant, is 

 well known to every house-keeper ; and it is cultivated for culinary 



FIG. 190. The Hop (Humulus Lupulus), a branch of a staminate plant, reduced. 191. A 

 separate staminate flower. 192. A young pistillate ament. 193. A ripe ament or strobile. 

 194. A much magnified grain of Lupulin. 



