Shaff.r : Vascular Flora of Allegheny County. 41 



t L. procumbens Michaux. Trailing bush-clover. 



'■'- L. violacea (Linnaeus). Bush-clover. 



* L. Virginica (Linnaeus). Slender bush-clover. 

 L. reticulata Persoon. 



^■•- L. hirta (Linnaeus). Hairy bush-clover. 

 L. polvstachya Michaux. 



* L. capitata Michaux. Round-headed bush-clover. 



Robinson Township, near Groveton Station, Oct. lo, 1899. 



STYLOSANTHES Swartz. 



^ S. biflora (Linnaeus). Pencil-flower. 

 S. elatior Swartz. 



VICIA Linnaeus. 



* V. sativa Linnaeus. Common vetch. 



t V. Cracca Linnaeus. Tufted vetch. 



* V. Caroliniana Walter. Carolina vetch. 



T V. Americana Muhlenberg. American vetch. 



LATHYRUS Linucxus. 

 t L. palustris Linnaeus. Marsh vetchling. 



APIOS Mcench. 



* A. Apios (Linnaeus). Ground-nut. 

 A. tiiberosa Moench. 



