INTRODUCTION TO BOTANY. Ixv 



The warmer the climate, and dryer the soil, the greater the 

 proportion of aromatic principle ; the poisonous and narcotic 

 principles will prevail in those species, which grow in cold and 

 moist situations. 



CLASS XIII. 



Hypopetalyf or Stamens Hypogorioiis. 



43. Ranunculacece. Juss. 



Gen. Clematis, Thalictrum, Anemone, Adonis, Myosurus, 

 Ranunculus, Caltha, Trollius, Helleborus, Aquilegia. 



All this family more or less acrid and poisonous : most of 

 them rendered harmless by boiling. The kernels of the seeds 

 usually mild ; the integuments acrid. 



44. Berberidem, Juss. 

 Gen. Berberis. 



45. Geranidcew. Auij. Hilaire. 



The Geraniaceae are here united with the Oxalideae, and 

 Lineae, of DC. 



Gen, Geranium, Erodium, Oxalis, Linum, Radiola. 



This family does not exhibit much uniformity in its medi- 

 cinal virtues. 



46. Malmcece, Mallow-tribe. Part of Juss. Malvaceae, 

 Gen. Malva, Althaea. 



All this family, mucilaginous, emollient, 



47. TiliacecE. Juss. 



Gen. Tilia. -^ 



48. Hypericinece. Juss. 



Gen. Hypericum. Aromatic, resinous. 



49. Acerinece. DC. 

 Gen. Acer. 



50. Polygalece. Juss. 

 Gen. Poly 'gal a. 



51. Fumaridce<B. DC. 

 Gen. Fumaria, Cory'dalis. 



52. Papaveracete, Poppy-tribe. Part of Juss. Papavera- 

 ceae. 



Gen, Papaver, Chelidonium. 



Plants of this family contain an acrid, milky juice, many, a 



