HARDY PERENNIALS. 



127 



single and double. Subject to severe attacks of rust, 

 which sometimes kill the plants. In such cases burn 

 the old phmts and all the litter around them and plant 

 anew in a different spot. 



FIG. 32. ICELAND POPPY. 



Lepachys. — A very desirable genu.'^ comprising only 

 a few species, of which L. jnmiata and L. colnmnaris 

 are worth first trial. 



(Enothera. — Comprises several good species, mostly 

 with large yellow flowers. The best are (E. Missourim- 

 sis, (E, fruticosa major and Q^. Fraseri. 



