Teacher's Leaflet. 



1169 



tufting characteristic of all the apples of the same variety? Are the 

 tufted seeds as well as the carpels? 



(12). Cut the apple transversely across the middle. In what shape 

 are the seed cells arranged in its center? Do the carpels vary in shape 

 in different kinds, as to width and size? Do they all open into a com- 

 mon cavity at the center? 



(13). How many seeds do the carpels contain? What is their shape, 

 size and color? Do they lie with points toward the stem or toward 

 the blossom-end of the apple? Are the seeds attached at any point or 

 do they lie loosely in their cells? What is the color of the meat in the 

 seed and does it separate into parts like that of the bean? In what 

 part of the seed is the germ or embryo, which, if the seed were planted, 

 would sprout into a seedling apple-tree? 



(14). Can you find any connection between stem, blossom-end and 

 core? This bunch of threads is called a " fibro-vasctdar bundle;" can you 

 count their number? (This observation and the preceding one need 

 the help of a lens.) 



(15). Can you see, in the transverse section of your apple, between 

 the core lines and the skin, faint little dots like a thickening of the 

 pulp? Count them and tell how they are arranged with regard to the 

 star formed in the center of the apple by the seed-cells. 



a, Cavity, b, Basin, c. Calyx lobes, 

 d. Calyx tubes with the withered 

 stamens still attached, e. Carpels, f. 

 Outer core lines, terminating at point 

 where stamens are attached, g, Fibers 

 extending from stem to basin. 



Transverse section showing tJte five, 

 carpels and (he ten outer core lines. 



