INTRODUCTION. 



Those botanists who have resided in the University 

 having for at least two hundred years made the Flora of 

 Cambridgeshire a subject of study, many works relating 

 especially to it have issued from the press. It will be well 

 to give some account of them. They commence with the 

 celebrated and singularly excellent Catalogue Plantarum, 

 circa Cantabrigiam nascentium of Kay, which was published 

 in the year 1660. This forms a small 12mo volume of 182' 

 pages ; and, after deducting all the plants which were culti- 

 vated or otherwise do not come within the plan of the pre- 

 sent Flora, it contains 671 plants found in this county by 

 Ray. The names are arranged alphabetically, and this, in 

 addition to the obscurity attendant upon the old nomen- 

 clature of plants, renders the book rather difficult to con- 

 sult. 



In 1663 Ray published an Appendix of 13 pages, in 

 which 37 plants were added; and of this a second edition, 

 consisting of 30 pages, was edited by Mr Peter Dent, an 

 apothecary of Cambridge, in 1685. Mr Dent inserted in 

 this edition 59 more plants unnoticed in the Gatalogus. 

 These additions are made almost wholly in the words of 



