INTRODUCTION. vii. 



exclude several plants, which might have proved to be of con- 

 siderable interest. 



Since 1909 death has removed from the ranks of those who 

 were interested in the Cornish Flora, or who gave generous help 

 to those engaged in the study thereof, Mr. J. G. Baker, Dr. H. 

 Charlton Bastian, Mr. C. Bucknall, Mr. F. H. Davey, Mr. H. 

 Groves, Mr. A. O. Hume, Mr. E. D. Marquand, the Rev. E. S. 

 Marshall, Mr. Clement Reid, and the Rev. W. Moyle Rogers. 



We have to express our great indebtedness especially to 

 the Journal of Botany, and the Reports of the Botanical Society 

 and Exchange Club of the British Isles, and Watson Botanical 

 Exchange Club, which have been liberally indented on. 



For permission to reproduce the portrait of Davey we are 

 indebted to the Watson Botanical Exchange Club. 



Many amateur collectors have to express their gratitude for 

 much generous assistance to the Staffs of the Kew Herbarium 

 and British Museum (Natural History), Mr. A. Bennett, Dr. 

 G. C. Druce, Mrs. Gregory, Mr. J. Groves, Professor A. Henry, 

 Mr. A. B. Jackson, the Rev. E. F. Linton, Dr. C. E. Moss, Mr. 

 H. W. Pugsley, the Rev. H. J. Riddelsdell, Mr. C. E. Salmon, 

 and Dr. F. W. Stansfield. To Mr. George Penrose, Curator of 

 the Cornwall County Museum, Truro, we are indebted for his 

 kindly help in seeing the Supplement through the Press. 



The opportunity has been taken to correct some of the 

 errors, which found their way into the Flora. Many records 

 therein from Bridgerule should be withdrawn, as the locality 

 is in Devon. 



Divisions one to eight correspond with the eight divisions 

 into which the County was divided for the purpose of the Flora. 

 Aliens, of which only a few isolated plants have been found, 

 are, as in the Flora, printed in italics. The status native, 

 alien, etc. of plants recorded in the Flora is not repeated in 

 the present Supplement. An asterisk indicates that the plant is 

 not recorded in the Flora. 



In a very interesting article in Science Progress, Vol. XV., 

 No. 57, 1920, entitled " Cornish Phenology, 1912-19," Mr. 

 Frank H. Perrycoste and Miss H. M. M. Perrycoste illustrate, 

 by means of data collected in connection with the Wild Flower 

 Society, the phenology of the part of Cornwall round Polperro 

 durincr eight consecutive years. * There is,'* they write, "no 



