52 BOTANY. 



Collect all the plants in the neighborhood, from garden, 

 road-side, fields, and woods, and, in describing their sta- 

 mens, you will become well acquainted with all the neces- 

 sary terms. 



EXERCISE XXII. 

 The Growing together of Carpels. 



You have been accustomed to counting the carpels of 

 flowers, and you are now to find whether or not they are 

 grown together. 



All such as are not grown to- 

 gether at all you may label apocar- 

 pous (Fig. 1 66). 



Those that are grown together, 

 whether slightly at the base of the 

 ovary or through the whole length 

 FlG l66> of the pistil, you label syncarpous 



Apocarpous Pistil. (FigS. 167, l68). 



Find all the apocarpous ovaries 

 pictured upon the charts. All the syncarpous ones. 



Find also the apocarpous ovaries in your collection of 

 flowers. The syncarpous ones. 



For this exercise, faded flowers, and even those that 

 have lost their floral leaves, will serve better than such as 

 are fresh. 



COHESION. In botany this word is used for the grow- 

 ing together of parts with their fellows, as of petals with 

 petals, carpels with carpels. Figs. 173 and 177 illustrate 

 this. 



Professor Henslow, the author of the flower-schedule 

 we are using, places the word cohesion above the third 

 column, and devotes it to observations upon the cohesion 

 of parts in flowers. 



Fig. 169 represents half a buttercup. It has been 

 sliced down through the middle, making what is called a 

 vertical section of the flower, that you may see the struct- 



