210 



liESSOJ^fS WITH PLANTS 



however, in having two petals on the upper side 

 instead of one, and the lowest petal is morpho- 

 logically only one (since the flower 

 throughout is in fives) . This 

 lower petal is produced into a dis- 

 tinct sac or spur, which is char- 

 acteristic of the violets. The sta- 

 mens are five, with free filaments 

 but connivent anthers, and the 

 pod, which is 1-loculed, with three 

 placentae, is much unlike 

 that of the pea tribes. 

 The violets, therefore, can 

 claim no close kinship 

 with the Leguminosse. 



241a. The violet is the type 

 of a small family known as the 

 Violaoese, which comprises some- 

 thing like two hundred and fifty 

 kinds of plants in various parts of the 

 world, some of which are small trees. 

 There, are about sixty kinds of violets 

 in North America. At this point the 

 pupil may take up a study of the pansy. 



242. The dutchman's pipe, 

 or pipe-vine (a kind of aristo- 

 lochia), is so-called from the 

 flowers (Figs. 204, 205). The 

 plant grows wild from Pennsylvania southward 



Fig. 203. 

 Violet flower 



curious pipe -like 



