CLASSIFICATION OF ANGIOSPERMS. 



291 



of quince. The manna of Luristan is obtained from Pyrus glabra 

 of Persia. Tannin and gallic acid are found in Tormentilla 



Fig. ISO. Hagenia.- abyssimca: A, branch showing a large panicle of pistillate 

 flowers and the stipxilate, compound leaves; B, C, staminate flowers; D, E, pistillate 

 flowers. — ^After Berg and Schmidt. 



rhizome which is obtained from Potentilla silvestris, a perennial 

 herb of Europe, and other species of Potentilla. The fruit of the 



