LILIACE^ 



231 



ALLIUM 



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

 Welsh onion. Thev are all herbs with a characteristic 



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

 ; prasumi) . 



alliaceous odor, which is due to the presence of allyl 

 sulphide. 



