v ADVERTISEMENT. 



We are aware that there are still several species in the 

 different collections, that we have not met with in flower ; 

 three or four species in Mr. Anderson's collection, at the 

 Botanic Garden at Chelsea, some others in Mr. Barclay's 

 collection, at Bury-Hill ; those at the Chelsea Botanic 

 Garden have not yet flowered, most probably owing to 



Pftt 1 



the cold wet Summer ; several annual species that We 

 have often raised from seeds several years back, we have 

 not been able to procure since the commencement of the 

 present publication. 



We have also given a description of the Natural Order 

 and of the published species that we have not been for- 

 tunate enough to meet with ; this should be placed at 

 the beginning of the work, to follow the list of books 

 referred to, which must also follow the title-page. 



To A. B. Lambert, Esq. we render our grateful ac- 

 knowledgments for allowing us free access to his Li- 

 brary and Herbarium, which has been of great service 

 to us in determining the plants of different authors, 

 many of the original specimens from the authors them- 

 selves being now in Mr. Lambert's collection. To Mr. 

 William Anderson, the worthy Curator of the Chelsea Bo- 

 tanic Garden, we have also to return our best thanks, for 

 his kindness in allowing us to make drawings of several 

 rare species, which we have not met with in any other 

 collection ; and also to the various Nurserymen, for their 

 readiness in assisting us with specimens or plants for 

 drawing and description, from their various establish- 

 ments. 

 . 



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