100 MARYLAND AGRICULTURAL EXPERIMENT STATION 



with rich soil seem so favorable to' their growth, although these parts 

 of the State have their peculiar species which do well, and legumes of 

 some kind are found in every climate and soil. In many parts of 

 Maryland legumes form from one-quarter to three-quarters of the 

 wild plants. Nearly all our clovers and related plants and several other 

 leguminous species are natives of Europe and have been introduced by 

 man, and run wild here. Figure 4 shows that most of these occur, 

 as would be expected, in the parts of the State where there is most 

 traffic. It must be borne in mind that several parts of the State (see 

 Figure 6.) have not been explored and this must be considered in in- 

 terpreting these maps. 



HOW TO FIND OUT THE NAMES. 



If one is interested in the wild legumes growing on his farm and 

 is not familiar with the different kinds, fresh leaves, with flowers and 

 pods, if possible, can be put in an envelope or wrapped in paper and 

 mailed to the Experiment Station, at College Park, where the names 

 will be supplied for him. 



The following comparison of characteristics and easily-observed 

 peculiarities of the different species has been devised as a key by which 

 any one unfamiliar with the plants may, with any one of our wild leg- 

 umes in hand, determine for himself the proper name of it. The figures 

 (Plate I.) of the leaves, etc., will also be helpful. After looking up 

 the plant in the key consult the catalogue of species for a more com- 

 plete description. 



