T.iNN'.r. us united with Cactus. We do not condemn this 

 fcparation of a genus grown too unwieldy ; but as it has not 

 been followed in the new edition of Ai ton's Hortus Kewenfis, 

 and we cannot find, in Mr. IIaworth's generic definitions, 

 characters that appear to us fuificiemly difcriminative, we prefer 

 adhering to the Linnean divifion of the genus into fections, 

 eatily dtflingudhed by their habit ; till future obfervations {hall 

 point out {table diflinguifhing characters in the fructification, 

 that may accord with the difference in habit; which neither 

 LiNN.tus nor } u s s i e u were able to effecl. 



Lamarck and Dec an dolle confider all the Opuntia as one 

 fpecies, con {riling of many varieties, which are at leaft not to be 

 diftinguifhed by the characters hitherto given. 



Our drawing was made from a plant communicated by 

 Mr. Haworth, in Auguil i8n. The fruit was added in 

 the following year. 



