BOTANY 



Nephrodium Oreopteris, Desv. Osmunda regalis, L. 



Polypodium, L. Ophioglossum, L. 



vulgare, L. vulgatum, L. 



Phegopteris, L. (extinct) Botrychium, Sw. 

 Osmunda, L. Lunaria, Sw. 



SUMMARY OF VASCULAR CRYPTOGAMS 



Genera Speciei 



Filices 10 20 



Equisetaceae I 7 



Lycopodiacez I 3 



Marsileaceae i i 



Total genera and species. . 13 31 



The total genera and species of vascular cryptogams for the whole 

 of Britain is 25 and 70 respectively. 



MOSSES (Musct) 



Surrey possesses a moss flora closely resembling that of Kent and 

 Sussex but is less favoured than either as regards conditions suitable for 

 the growth of these plants. The climate is drier, the land better 

 drained and the rocks softer and less durable. Geologically the three 

 counties are identical, the same formations occurring in all and in about 

 the same proportion, the chief distinction lying in the limited outcrop of 

 Hastings Sand. In Sussex this bed covers a large area and composes the 

 High Rocks at Tunbridge Wells, furnishing many species of considerable 

 interest. In Surrey however it only occurs in the extreme south-east. 



The county is intersected midway by the chalk which extends from 

 the west as an increasingly broad belt towards the east and north-east. 

 The highest land is formed by the ridge of Lower Greensand which lies to 

 the south of the downs as a series of hills covered with heather and well 

 wooded with pines and larches. In the west on the Bagshot sand are 

 extensive undulating commons rising into low hills capped with clumps 

 of pines, and with bogs and marshy ground of considerable extent, and in 

 the south-west also are several large commons with numerous ponds and 

 alder swamps. 



The bryology of the county has received considerable attention from 

 many workers of ability, but some districts still require careful investiga- 

 tion as is shown by the recent addition to our list of several striking 

 species. There are however few lists in existence and none of much 

 importance with the exception of an excellent paper on the ' Mosses of 

 Kew,' by Mr. E. S. Salmon. Among others who have contributed to 

 our knowledge of the mosses of the county is Dr. Capron, who devoted 

 many years of his residence at Shiere to the collection of species growing 

 in his neighbourhood. His collection and records however are unfortu- 

 nately not accessible. Dickson also collected, and Black, the latter 

 working chiefly in the Dorking district, many of his specimens being in 

 the British Museum Herbarium. More recently, Mr. E. S. Salmon, 

 who has devoted considerable time to the mosses of the Reigate district, 



