534 



General Botany 



Fig. 337. Flowers of the Japanese anemone {Anemone japonica). It belongs to tha 



buttercup family. 



and magnolias. The flowers are solitary and conspicuous. The 

 receptacle is usually elongated, and the parts of the flower 

 are arranged spirally about it. The calyx and corolla are not dis- 

 tinct in shape or color, and the sporophylls are indefinite in 

 number. 



The flowers of this order are generally regarded as primitive, 

 and it has been suggested that the monocots were derived from 

 the ancestral forms of the order Ranales. 



The mustard family (Cruciferae). The scientific name of the 

 family is derived from the cross-like arrangement of the four 

 petals. In this family the four sepals are green and quite dis- 

 tinct from the petals. The stamens are six in number, four 

 long and two short. The single ovulary is divided by a membrane 

 into two compartments, each of which contains a row of ovules. 



To the family belong many troublesome weeds ; a variety of 

 edible herbs like cabbage, cauliflower, turnip, radish, caper, and 

 cress ; and the ornamental wallflowers and stocks. 



The pitcher-plant family (Sarraceniaceae) . This small family 

 is one of three families belonging to the order Sarraceniales. 



