IDENTIFICATION OF BLUEBERRY VARIETIES 



Figure 5. Leaf Waving. 



1. RUBEL — even margin 



2. RANCOCAS — waved 



3. ATLANTIC — twisted midrib 



have a slightK- bent back or reflexed tip as \Ve\mouth. while others have both 

 tip and base teflexed as Scammiell. Others have the whole midrib curved back, 

 a reflexed midrib, as in Adams. 



The appearance of the leaf surface is very important in distinguishing varieties. 

 Cabot leaves have a smooth surface (Figure 7). Those of June have a bullate 

 surface, a surface covered with little humps. In varieties such as Sam, having 

 leaves with a rugose surface, the humps between the principal veins are joined 

 together into ridges so that the surface has the appearance of a series of low 

 rolling ridges and valleys. Wareham leaves have a netted surface. Netted and 

 bullate are similar but quite distinct conditions. On a netted surface the veins 

 are slightly depressed below an otherwise flat surface; on a bullate surface the 

 islands between the veins are puffed up into definite humps above the general 

 surface level. Pockmarking is just the reverse of bullateness; that is, there are 

 depressions, as in Pemberton, instead of humps between the veins. Some leaves 

 of the variety Dunfee have a special combination of bullateness with a light and 

 dark green mottling or mosaic appearance which sets this variety off by itself. 

 Furthermore, the leaf surface may be dull as in Pioneer or glossy as in Rancocas 

 (Figure 8). 



Figure 6. 



1. PIONEER — reverse curve 



2. WEYMOUTH — reflexed apex 



Curvature of Midrib. 



3. SCAMMELL — apex and base reflexed 



4. ADAMS — reflexed midrib 



