THE FRUIT 



65 



are opposite the dorsal sutures of the carpels; in the inner one 

 they alternate with the carpels. The core-line appears in the 

 transverse section 



usually on the inner 

 side of the ten bun- 

 dles looping out be- 

 tween them into the 

 flesh. 



No doubt the dif- 

 ferences in the size 

 and position of the 

 vascular bundles in 

 the fruits of pomes, 

 and in the outline of 

 the core, marked as 

 a beautiful bit of 

 tracery, are suffi- 

 ciently plain and 

 constant to be great 

 aids in classification. 

 Several w^orkers in 

 the United States 

 and in Europe lay 

 great stress on these 

 marks in classifying. 

 As a last resort they 

 certainly prove help- 

 ful, but there is usu- 

 ally no difficulty in 

 identifying varieties 

 and placing them in 

 systems of classifica- 

 tion from characters 

 more easily seen and 

 more readily set 

 forth in a written 

 description. 



99. Stamens. — When a pome is cut in exact halves length- 

 wise, the top of the section is beset in most species with the 



Fig. 



36. Stamens, tube, and carpels of 

 apple. (After Hogg.) See Fig. 37. 



