IV 



PREFACE, 



To these plants I have occasionally added notes on an- 

 other most valuable set of above 400 beautifully dried 

 Mexican species, gathered about the town of Mexico and 

 in the mining districts of Tlalpuxahua and Real del Monte, 



h 



and presented to me some years since by G- J. Graham, 

 Esq., a gentleman whose name must be well known to 



m ■ 



horticulturists, from the number of handsome Mexican 



f 



plants he was the means of introducing to this country, 



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and whose zeal in collecting specimens, and liberality in 

 disposing of them, equally entitle him to the gratitude of 

 botanists. 



London, May 1839, 



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lODia 



13.56J 



lilis, de- 

 A-dentatis 



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