YELLOW CLOVER LUCERN. 379 



extent of from Ib. to 2 Ib. per imperial acre, for perma- 

 nent pasture, for permanent lawn pasture, for lands in 

 preparation for irrigation, for permanent pasture and hay in 

 orchards and other grounds much overshadowed by trees, for 

 pasturage and cover in thick shady woods, for improved deep 

 rnossy ground intended to be kept in grass, for marshy 

 grounds and such as are occasionally overflowed by fresh- 

 water tides. A bushel of the seeds averages 64 Ib., and the 

 number of seeds in an ounce rises to 51,000. 



Medicago lupulina, Common Yellow Clover Trefoil, Black 

 Medick, or Nonesuch. Black medick is a fibrous-rooted bien- 

 nial or triennial. It flowers from May to August. It grows 

 in dry pastures and cultivated grounds. The species of Medi- 

 cago are readily distinguished by their legume, which in some 

 is bent into an arch, like a sickle, and in others is spirally 

 twisted. The black medick is extensively cultivated, but is 

 hardly equal in nutritive properties to the red and white clover. 

 Some confusion occasionally arises from the black medick 

 being called the hop trefoil, which name at present is confined 

 to the Trifolium procumbens, a much less useful plant. The 

 Medicago lupulina is one of the plants recommended to be 

 sown, to the extent of from 1 Ib. to 3 Ib. per imperial acre, for 

 alternate husbandry, for permanent pasture, for permanent 

 lawn pasture, for heathy and moory lands which have been 

 improved with a view to their producing better pasturage, for 

 improved deep mossy ground intended to be kept in grass, 

 and for warrens or light sandy downs, A bushel of the seeds 

 averages 63f Ib., and the number of seeds in an ounce amounts 

 to 16,000. 



Medicago sativa, Lucern. Lucern is a deep-rooting per- 

 ennial. It flowers in June and July. It is a native of the 

 south of Europe, but has become naturalised on the chalky, 

 calcareous, and gravelly soils in the south of England. It is 



