300 



WEEDS AXD USEFUL PLANTS. 



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

 tent truncate calyx. Cotyledons linear, spirally involute. 



1. Lu'pulus, L. 



scabrous. 



Leaves mostly 3-Iobed, cordate at base, petiolate, 



Hop. Hop-vine. 



Ft. Houblon. Germ. Der Hopfen. Span. Hoblon. 



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

 rfcizoma), 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. Staniinate 

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

 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. Fl. July, 

 ber. 



Fr. Septem- 



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 (Hamulus 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. 



