When grown in the open border they are very apt to 

 die suddenly, so that only a few plants will sometimes 

 remain out of a whole bed. This is probably owing to the 

 soil in such instances being too light, and therefore subject 

 to sudden dryness; a condition which their tender roots 

 are not formed by nature to endure. . In Chile, where all 

 the species of Salpiglossis grow, they are found springing 

 from the sides of dry clay banks baked hard by the scorch- 

 ing sun of that climate ; a situation in which the moisture 



that the earth contains is parted with with great difficulty, 

 and very slowly. 



This genus has been referred either to Bignoniaceae or 

 to Solaneae; but surely its real affinity is with Digitalis, 

 and those other alternate - leaved Scrophularineae which 

 form the transition from the latter order to Solaneae. 



J. L. 





