PLATE 39. 



Fig. 1. The Fi hybrid (H38) .V. Tab. var. maeroplnjUa (22/07) X N. syJves- 

 tris (107/01) between its two parents. 



Fig. 2. The F, hybrid (H40) A". Tab. var. calycinu (110/05) X N. sijlvestris 

 between its two parents. 



[328] 



