PERICARP. 5f 



Mays ; Cucumber, Cucumis ; or in separate flowers 

 on separate plants, as in the Willow. 



This gives rise to the following distinctions of 

 flowers* 



1. BARREN BLOWERS, flowers having stamens 

 only. 



Observation, 1. Called BARREN because they produce no seed. 

 2. Sometimes called STAMEN-HEARING orSxAMEXiFEROus, 



2. FERTILE, having pistils only. 



Observation. ! Galled FERTILE because they bear seed. 

 2. Sometimes called PISTIL-BEARI^GF PISTILIFEROUS. 



3. PERFECT, furnished with both stamens and 

 pistils. 



Observation. 1. Called PERFECT be'cause they contain both the 

 rudiments of the seeds, and all that ^accessary to perfect them. 



2. On account of the separation of tht- stamens and pistils in 

 the barren and fertile flowers, they have been termed SEPARATED 

 FLOWERS ; and on account of their union in perfect ones, they have 

 been denominated UNITED FLOWERS. 



V. Pericarp. 



PERICARP, (pericarpium) the seed vessel ; which 

 is formed by the germen enlarged. 



Observation. It is not an essential part, the seeds being- fre- 

 quently naked and guarded only Jby the calyx, as in Motherwort, 

 LeonuriM. The use of the seed vessel is to protect the seeds till 

 ripe, and then in some way or other to promote their dispersion, 

 either by scattering them by its elastic power, or by serving as 

 food for animals. 



Pericarps are of several kinds. 

 1. CAPSULE, (capsula.) PI. 14, fig. 6. A dry seed- 

 vessel of a woody or membranous texture. Ex. 

 Thorn-apple, Datura stramonium. 



Terms applied to the parts of seed-vessels and principally 



to the parts of a capsule. 



1. Valves, (valvulcv) the pieces into which a capsule 

 usually splits. 



