GARDEN PEA. 



29 



base with the daws of the petals, they are neverthe- 

 less inserted on the receptacle {hypogynous). 



3. The carpels are almost ahvays united in a ring, which 

 breaks up at maturity. 



4- It may be added that the leaves are furnished with 

 stipules, and the juice of the plants is mucilaginous. 



CHAPTER V. 



EXAMINATfON OP COMMON PLANTS WITH PERIGTNOUS 

 STAMENS GARDEN PEA GREAT WILLOW-HERB. 



39. Garden Pea. In the flower of this plant, the 

 calyx is constructed on the same plan as in the Mallow. 

 There are five sepals, coherent below, and spreading out 



into distinct teeth above (Fig. 35). The calyx is there- 

 fore gamosepalous. 

 Examine next the form 



of the corolla (Fig. 36). 



One difference between 



the corolla and those of 



the previous plants will 



strike you at once. In 



the flowers of the latter 



you will remember that 



each petal was precisely 



Pig. 38. 



Fig. 39. 



Fig. 37. 



like its fellows in size and shape, and we therefore spoke 

 of the corolla as regular. In the Pea, on the other hand, 



Pig. 35.— Flower of Garden Pea. Fig. 36.— Front view of the same. 



Fig. 37. — Diadelphous stamens of the same. 



Fig. 38.— The pistil. Fig. 39.— The same ont through lengthwise. 



