points of difference, perhaps sufficient to keep them specifi- 

 cally distinct. They all have ventricose or barrel -shaped 

 flowers which continue closed ; the internal plica; of Sapo- 

 naria are fimbriated, of ochroleuca and intermedia nearly 

 or quite simple; the flowers in Saponaria and especially in 

 Catesbcei (if these plants are really distinct) are more ver- 

 ticillate, in ochroleuca more crowded at the extremity of 

 the stalk; in intermedia the flowers are altogether terminal, 

 the lateral ones being never truly axillary, but supported 

 on short leafy branches ; the leaves in the fatter are broader 

 towards the point than in either of the others. 



For this, as we believe, unrecorded species, we are in- 

 debted to Mr. Joseph Knight of the King's Road, who 

 received the roots from North America in the spring of 

 1820; he supposes it to be a native of Virginia. A hardy 

 perennial. Flowers in October. 



