284 GLOSSARY 



Raphe, the cord which runs from the chalaza over the 

 top of a grape seed. 



Rapid rectilinear lens, a photographic lens made in 

 two sections, with a diaphragm between, in 

 such a manner as to prevent the distortion 

 of lines. A poor lens renders straight lines as 

 curves. A rectilinear lens should always render 

 straight lines straight, 31. 



Regular, applied to fruits in which the horizontal 

 section is circular or very nearly so. Used in 

 a very similar sense in describing the cavity or 

 the basin of the fruit, 40. 



Reniform, kidney-shaped, 21. 



Ribbed, applied to fruits having distinct longitudinal 

 ribs, 40. 



Rugose, wrinkled. 



Self-colored, composed of one solid color; having only 



the ground color, 50. 

 Shoulder, that portion of a cluster of grapes formed 



by a branch from the main stem, 88. 

 Subacid, mildly sour, 53. 

 Suture, the depression in the surface of many stone 



fruits, running from the stem toward the apex, 



58. 



Sweet, without acidity, and having more or less sweet- 

 ness to the taste, 53. 

 Systematic pomology, the description, naming, and 



classification of fruits; pomological taxonomy, 



5- 



Taxonomy, the science of classification; literally the 

 science of names, 240. 



