A CONTRIBUTION TO THE FLORA OF THE COUNTY. 207 



know least, although of the first importance, the distribution of 

 the various forms according to the soil and situation in which 

 they grow, are among other points of interest. This biological 

 survey should go hand-in-hand with a similar survey of the 

 flowering plants, and the land and freshwater molluscs particu- 

 larly, but other forms of life should not be ignored. Something 

 has been done in various parts of the world of late on these lines, 

 but nothing so far as I know in Essex. 



In the compilation of the following list I have had the kind 

 assistance of, and desire to tender my best thanks to, Mr. W. 

 Cole, through whom I have been able to carefully examine the 

 collections belonging to the Essex Field Club ; Mr. A. Gepp, for 

 assistance in consulting the specimens collected by Mr. Forster, 

 now in the Herbarium of the British Museum ; Mr. G. Maynard, 

 who kindly compiled a list of mosses collected by Mr. F. Y. 

 Brocas, and now in the Saffron Walden Museum ; Mr. W. 

 Sherrin, for the list of mosses collected by himself in Essex ; Mr, 

 J. Wheldon, for naming the critical group of Hypnum known as 

 Havpidium ; the Rev. E. N. Blomfield, for additions to the list 

 in the Victoria History of Essex ; and Mr. H. N. Dixon for lists 

 and much help when in doubt. 



The following is a list of the sources from which the informa- 

 tion contained in the following list of localities has been derived. 



(1) 1724. Ray, John. Synopsis Methodica Stirpinm Britannicum, 



Ed. III. 



(2) 1800. Forster, Edwd. Herbarium in the British Museum, 



Natural History, S. Kensington. 



(3) 1802. Sowekby, John. English Botany. 



(4) 1833. Hooker, Sir J. English Botany, Vol. v. 



(5) 1836. Cooper, Danikl. Flora Metropolitana. 



(6) 1843. Sidebottam, J. Specimens in Mr. Wilson's Herbarium in 



the British Museum, Natural History. 

 (") I ^45- Greenwood, A. " Mosses found near Chelmsford" in the 

 Phytologist, Vol. II. 



(8) 1860-1875. Varennk, E. Ct. Collection in the Herbarium ot the 



Essex Field Club. 



(9) 1874. Brocas, F. Y. Collection in the Herbarium of the Saffron 



Walden Museum. 



(10) 1800-1905. Braithwaitf, Dr. R. British Moss Flora. 



(1 1) 1885. English, J. T. Exsiccata of the Mosses of Epping Forest, 



in the Hei barium, of the Essex Field Club, also many 

 loose specimens collected in the Forest, mostly near 

 Epping. 

 1886. P^nglish, J. T. MS. list of the Mosses of Epping Forest. 



