56 Leaf Character in Reverted Black Currants 



have occurred may be summed up under three heads: (a) reduction of 

 the venation system, (6) coarser and fewer lobes, and (c) reduction of 

 leaf size in the older specimens. 



C 



Fig. 18 



Fiji. 23 a 



Fig. 23 



Figs. 18-23a. Comparison of kormal and reverted leaves. Figs. 18-22. First four 

 leaves from apex of normal shoot. Figs. 18a-22a. First four leaves from apex of 

 reverted shoot. Fig. 23. 10th leaf from apex of normal shoot. Fig. 23a. 10th leaf 

 from apex of reverted shoot. 



The following eleven cases have been selected from a number of 

 similar ones from bushes growing at Long Ashton. The selection was 

 made so as to reduce as far as possible the number of disturbing factors. 



