PAET II. 



the hop plant. 

 Introductory. 



Botanists distinguish between two families of hops : — 



(a) The common hop (wall-, nettle-, hedge-hop), Humulus 

 lupulus L., and 



(b) The Japanese hop, Humulus japcmcus Sieb. and Cu^k. 

 The latter, which is indigenous in Japan, China and 



the adjacent lands, is an annual, destitute of lupulin glands, 

 and is occasionally grown as an ornamental plant in Euro- 

 pean gardens. Apart from this purpose it has no economic 

 value. 



The first-named genus, the " common hop " {Humulus 

 lupulus L.), which grows wild everywhere in any damp 

 shady place, and especially on the banks of streams and 

 rivers, is universally regarded as the ancestral stock of the 

 cultivated variety. The French name for it is houblon ; the 

 German, hopfeii ; the Italian, lupulo or lavertice ; the Swedish, 

 humbla ; the Hungarian, komlo ; and the Danish, homle ; 

 whilst in Finland it is called humala ; in Spain, lupares ; in 

 Holland, hopp or hoppencrijdt ; in the Czech dialect, chmel ; 

 Polish, chmiel ; Turkish, hymel ; Eoumanian, hemey ; Wal- 

 lachian, ham^ju ; Lettic, appin ; and Lithuanian, apwywys. 



The common hop is a dicotyledonous, dioecious plant, 

 and belongs, in the Linnean classification, to the fifth order 

 of class XXII. (Dioecia pentandria). The male and female 



