LILIACEiE 



241 



Types of Onions. — The varieties of common onions differ 

 quite widely as to manner of propagation, quality, shape, 

 color and size of bulbs, and time of maturity. L. H. Bailey 

 proposes a classification as follows: 



I. Propagated by division {Allium cepa var. multlplicans) . 



Potato onions. 



Multipliers, 

 i!. Propagated by inflorescence bulblets or "tops" (Fig. 95) (Allium cepa 

 var. bulbellifeta) . 



Top onions. 



Tree onions. 



Egyptian onions. 



Fig. 96. — Two common types of onions based upon shape of bulb. A, globe 

 type; B, flat type. 



3. Propagated by seeds [Allium cepa). (These are also propagated by 

 "sets," which are small bulbs grown from seed and arrested in their develop- 

 ment.) 

 Skin of mature bulb silvery white. 



1. Globe onions (Southport White Globe) (Fig. 96). 



2. Flat onions (Fig. 96). 



(0) Bulbs large (White Italian Tripoli, Silver Skin, White Bermuda, 



White Portugal). 

 (6) Bulbs small (Queen). 

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