iY ADVERTISEMENT- 



Vork to its present time and place of publication. 

 These have been attended to, as far as the short time of 

 preparation would admit. It will be observed, that the 

 author, for his examples and illustrations, has principally 

 cited English and foreign plants, contained in the 

 English, and Exotic Botany, and the Botanical Magazine. 

 To the greater portion of students in this country a 

 majority of these plants, as well as their figures, are 

 inaccessible. In order to obviate the inconvenience 

 arising from this source, care has been taken to dis- 

 tino-uish most of those, which are native in this coun- 

 try, and, as far as possible, to facilitate a reference 

 to them by the insertion of their common names. 

 Other examples taken from American plants have also 

 been subjoined, where additional illustrations seemed 

 advisable. A number of physiological improvements 

 and speculations, principally of later date than the Lon- 

 don edition, will be found briefly detailed in the notes 

 accompanying this. Where occasional deficiencies have 

 been found in the definitions, the vacancy has been 

 filled up ; as will be seen under the words calyx ^ petiole ^ 

 8cc. A table of contents has been added, and, for tjic 

 benefit of those who do not possess a glossary of botan- 

 ical terms, the general index has been increased to twice 

 ^ its original size. Under these circumstances, it is 



