ELEMENTS OF STRUCTURAL HOTANY. 



05 



Ib simply an enlarged receptacle ; so that this Iruit, 

 also, is not a true berry. 



152. The fruit of Sweet-Brier (Fig. 45) consists of a 

 red fleshy calyx, lined with a hollow receptacle which 

 bears a number of acheucs. This fruit is therefore 

 iiualogous to that of the Strawberry. In the latter the 

 achenes are ou the outer surface of a raised receptacld, 

 while, in the former, they are on the inner surfaco of a 

 hollow receptacle. 



153. The Cone of the Pine (Fig. 154) is a fruit which 

 difters in an important respect from all those yet men- 

 tioned, inasmuch as it is the product, not of a single 

 tlower, but of as many flowers as there are scales. It 

 may therefore be called a c >Uective or muhiijle fruit 

 The Piue-Apple is another instance of the same 

 thing. 



154. Of dehiscent fruits there are some varieties 

 which receive special names. The fruit of the Pea, or 



Bean (Fig. 159), whose 

 pericarp splits open 

 along hiith margins, is 



called a leijume ; that of 

 Marsh-Marigold (Fig. 

 Fig. 159. 25). which opens down 



one side only, is a Jollicle. Botli of these are apocar- 

 pous. 



155. Any syucarpous fruit, having a dry dehv<cent 

 pericarp, is called a capsule. A long and slender cap- 

 sule, having two cells separated by a membranous 

 partition bearing the seed, and from v.-hich, when ripe, 

 the valves fall away on each side, is called c dlique 



