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A TEXTBOOK OF THEORETICAL BOTANY 



two carpels but unilocular and with two parietal placentae. Here as in the 

 similar case of Pimica, the pulp mostly consists of the mucilaginous testas 

 of the seeds. The development of the fleshy consistency of the pericarp 



Fig. 1399. — Podophylluiii emodi. Fleshy capsule. 



frequently leads to the suppression of septa and the abortion of some of 

 the seeds, so that the structure of the mature berry may be difficult to 

 discern. 



Berries assume many forms, some of them very different from that 

 familiarly pictured in our minds by the name. The Banana, for example, 

 falls into this class and so do the Cucumber and the Melon. These are all 

 from inferior ovaries and like the Gooseberry are unilocular, the two latter 

 with parietal placentae. They have received the special name of pepo. The 

 Orange has also been given the special name of hesperich'iim (Fig. 1400). 

 Its epicarp is thin and aromatic, the mesocarp soft and pithy and the thin 

 endocarp of the individual carpels bears numerous trichomes which become 

 large and pulpy and form the flesh of the fruit, surrounding the seeds, which 

 are borne on axile placentae. - 



2. Drupes. These are fleshy fruits which are distinguished from 

 berries by the hard, stony endocarp which encloses the seed or 

 seeds. Simple drupes like the Cherry arise from a single carpel. 

 Several of the most familiar fruits, the Plum, Peach, Apricot 

 and Almond, all members of the Rosaceae, resemble the Cherry 

 in being unicarpellary. The endocarp thickens considerably in 

 ripening, at the expense of the mesocarp, and forms the stone of 



