468 THE SURVIVAL OF THE UNLIKE. [XXIX. 



mark of hybridity, but I am rather inclined to think 

 that the pure species has the lower leaves promi- 

 nently stalked. This old-fashioned petunia is a coarse 

 plant, and is now little known. It was not a difficult 

 matter for the second species to dislodge it. 



This second species of petunia first flowered in the 



Petunia nyctaginiflora. Half size. 



Glasgow Botanical Garden in July, 1831, from seeds 

 sent the fall before from Buenos Ayres by Mr. 

 Tweedie ; and in 1831 an excellent colored plate was 

 made of it, under the name of Salpiglossis integri- 



