EXOGEN^l CALYCIFLOR.E. 



123 



Division 4. Amygdaleee. Carpel single, a drupe. 



USES. The fruit of the Peach, Nectarine, Almond, Plum, 

 Cherry, and Apricot, are produced by various species. Many 

 are of great beauty on account of their gay flowers. Hydro- 

 cyanic acid is yielded by the leaves of all, especially of the 

 Prunus Laurocerasus, or common Laurel. The bark of Pru- 

 nus Coccomilia and some others is febrifugal. 



TYPICAL GENERA. Prunus, Amygdalus. 



Division 5. Pome<z. Carpels adhering to the calyx. 



USES. Beautiful trees or bushes, bearing a fruit which is, 

 in the majority of species, eatable. Apples, Pears, Quinces, 

 Medlars, Services, are the produce of different species. The 

 wood is usually very hard. The Hawthorn is a valuable ma- 

 terial for fences. 



TYPICAL GENERA. Pyrus, Cratsegus. 



Division 6. Sanguisorlea. Flowers often unisexual. Petals 

 none. Tube of the calyx hardened. 



USES. Astringents of little importance. Common Burnet 

 used for sheep pasture is Sanguisorba officinalis. 



TYPICAL GENERA. Alchemilla, Sanguisorba, Poterium. 



Sanguisorba officinalis. 1 . A flower with a pair of bracts. 2. The same with 

 half the calyx cut away. 3. A ripe fruit, from which the calyx has been removed. 

 4. A vertical section of fruit and calyx. 5. Transverse section of a fruit. 



