14 



ILLUSTRATED TERMS. 



together and make the upper lip ; the remaining three petals 

 join together and form the lower lip. These divisions appear 

 mostly as lobes, and it is not always noticed tliat the corolla 

 has five lobes instead of two. (Fig. 46.) 



The preceding forms which have been cited are those that 

 belong to the gainopetalous division. The following terms are 

 peculiar to polypetalous corollas : — 



UPPlRLif,... 



Lom^ui>. 



FIG. 44. 



FIG. 45. 



FIG. 46. 



FIG. 47. 



Rosaceous : when the petals are distinct and without claws, 

 as in the rose. 



Papilionaceous, or Butterfly-Shaped, (Fig. 47.) Such 

 flowers are usually described in three parts: the Banner, or 

 Standard, which is the large upper petal ; the Wings, or the 

 two side petals, and the two anterior petals that, commonly 

 united in a shape something like the prow of a boat and en- 

 closing the reproducing organs, are called the Keel. (Fig. 48.) 



The Stamens or Fertilizing Organs of a plant are com-^ 

 posed of two parts : the Filament, or stalk, which is useful to 

 uphold the Anther; and the Anther, a tiny two-celled box, 

 which contains the Pollen. The Pollen is the yellow fertil- 

 izing dust which is the essential product of the stamens. 

 (Fio. 49.) 



Exserted Stamens are those that protrude from the 

 corolla. 



Included Stamens are those that are within the corolla. 



!l 



