LILIACEiE 



231 



ALLIUM 

 To this genus belong chives, garHc, leek, onion, shallot and 

 Welsh onion. They are all herbs with a characteristic 



Fig. 88. — A, Welsh onion (Allium ascolonicum).; B, cive (Allium schceno- 

 prasum). 



alliaceous odor, which is due to the presence of allyl 

 sulphide. 



