GLOSSARY 



CALYX TUBE 



We recognize three kinds, or shapes, of calyx tubes ; namely, the cone- 

 shaped, the funnel-shaped, and the urn-shaped. 



Cone-shaped calyx tube. A calyx tube resembling, or conforming to, the 



general shape of a cone.. 

 Funnel-shaped calyx tube. A calyx tube whose general shape resembles 



that of a funnel, or which has a little tube attached to the base of the 



cone-shaped tube. 

 Urn-shaped calyx tube. A calyx tube resembling an urn in shape, or having 



sides which are neither straight nor funnel-form, but which have a double 



curve and are comparatively broad and rounded toward the base. 



CAVITY 



The depression around the stem of a fruit is technically called the cavity. 



Acuminate cavity. A cavity in which the stem meets the side of the cavity 

 in a sharp, narrow angle. 



FIG. 41. A, obtuse cavity ; B, acuminate cavity ; 

 C, acute cavity 



Acute cavity. A cavity intermediate between an acuminate and an obtuse 



cavity, as in the Canada Red apple. 

 Obtuse cavity. A cavity in which the angle between the stem and the side 



is wide and blunt, as in the Rome Beauty apple. 



In addition to the above we speak of the cavity as being wide or narrow, 

 and deep, medium, or shallow. 



COLOR 



The color of fruit is quite varied and ranges from the light yellow of the 

 white fruits, through the various shades of red, into deep purple. This 

 condition can better be explained by several examples. Thus, we have 

 the white flesh of the snow peach, followed by pale yellows shading gradu- 

 ally into the deeper colors. Again, we find cherries and plums gradually 

 shading from the yellowish tints through to orange and the deeper reds ; 

 and the grapes follow with blues, violets, and purples. Amber and fawn 

 with slight mixtures of grays are also found. In addition to solid color 

 in fruits, we find various striped and mottled effects. 



[225] 



