DIVERSITY OF LEAF-FORMS IN AGRIMONIA 



Figure 21. Leaf of Agrimonia growing in partial shade at Lanham, Mary- 

 land, showing diversity among the pinnae, with many gradations in size,, and 

 irregular alteration of arrangement. Groups of one to four of the small 

 pinnae alternate with the large pinnae. The larger of the, small pinnae are 

 generally at the intermediate positions, between the .base^ of the large pinnae, 

 but these relations are not regular, nor are, the shapes or the marginal notches 

 of the pinnae. 



