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1. M. PAEViFLOEA Desf. Flowers yellow. 

 O . Common the year round. 



Native of the Mediterranean region, but at 

 present perfectly naturalized. 



6. Medicago Toum. Medick. 

 Diadelphous. Petals free from the column 

 of stamens and deciduous. Legume globose. 

 Flowers racemose. Leaves pinnately 3-foliol- 

 ate; stipules adnate. 



1. M. SATIVA L. Legume without prickles, 

 spirally rolled up. the spiral leaving an open 

 space in the center; flowers purple. — 21. 

 Common all the year round. ' 'Alfalfa." 



Native of Europe, but escaped from cultiva- 

 tion in different countries. 



2. M. DENTICULATA Willd. Lcgume spirally 

 rolled up and armed with a double row of 

 prickles; flowers yellow. — 0. Common all the 

 year round. 



Native of Europe, a fodder plant, but owing 

 to the prickles that infest its legume, not de- 

 sirable in wool-growing districts. 



3. M. LUPULINA L. Legume without prickles, 

 spirally rolled up, the spiral leaving no open 

 space in the center; flowers yellow. — 0. Com- 

 mon all the year round. 



Native of Europe, now naturalized. 



