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DEVELOPMENT OF 



Arum they vanish altogether. In this respect the Crocus conns 

 resemble the analogous bodies in Sturmia and Colchicum, though 

 in other respects very different. Colchicum and Arum, however, 

 differ from Crocus in that their roots do not spring from the last 



year's corm as in the genus before us, but from the base of this 

 year's plant, the base of whose axis is to contain the nutriment for 

 the ensuing year. If it be objected that this difference does not 

 exist where tuberiform roots spring from the base of this year's 

 axis, it must be remembered that at the same time roots are 

 present at the base of last year's corm, and derive their principal 



