THE PERICARP. 127 
VARIETIES OF PERICARPS OR FRUITS. 
488. Theré-are many different kinds of pericarps or fruits. 
1. Some are simple, being the result of a single carpel, of 
course in one flower, as the Pea: 2. Others are compound, 
being composed of several carpels united into one pistil, of 
course in one flower, as the Apple; 3. Some are multiple, 
consisting of several carpels in one flower, but remaining 
distinet in the matured state, as the Strawberry; 4. and 
others are aggregate, consisting of the fruits of several flow- 
ers united into one mass, as in the Pine-Apple (Bromelia 
ananas. ) 
489. By some, fruits are divided into two classes; 1. 
SIMPLE, embracing the first three classes above, simple, com- 
pound, and multiple; 2. munrre.e, embracing the 4th class 
above, aggregate, sometimes termed Anthocarpous. ee 
490. Some fruits are dehiscent (480), as the Foxglove and 
Poppy ; others are indehiscent (480), as the Peach. 
491. Some are dry, as Wheat; others are fleshy, as the 
Apple. The two last characters, dry and fleshy, are of sub-_ 
ordinate importance. 
SIMPLE FRUITS. 
Formed of a single carpel in each flower. 
1. Dehiseent. 
