258 PROCEEDINGS COTTESWOLD CLUB 1914 



from the point of junction with the canal up to Tewkesbury. 

 I have used these numbers, 33 and 34, after the name of the 

 species or variety, to indicate the " Vice-county " in which 

 it is found. 



The Cotteswold Hills, which occupy the greater part of 

 East Gloucester, and the eastern portion of West Gloucester, 

 reaching southwards nearly to Bath, form a very natural 

 division of the County. The Moss-flora throughout this dis- 

 trict is very uniform, and calcareous species everywhere pre- 

 dominate. In this district there is no peat and the genus 

 Sphagnum is nowhere found. A welcome change in the 

 character of the Mosses is found in some of the sandy districts, 

 such as where the Harford Sands of the Inferior-Oolite Series 

 and the sandy beds of the Middle Lias, in the North Cottes- 

 wolds, and the Cotteswold Sands further south in the Mid and 

 South Cotteswolds, occur. I include as part of the Cottes- 

 wolds the outliers of Bredon, Dumbleton, Churchdown, and 

 Robins' Wood Hill, which are geologically detached portions 

 of Cotteswold Hills. Characteristic Mosses of the Cotteswolds 

 are Tortula pusilla, T. lamellata, Seligeria pusilla, Phascuni 

 curvicolle, Pottia recta, P. bryoides, Weisia crispata. Among 

 rare mosses may be mentioned Bartramia (Ederi and Eurhyn- 

 chium rotundi folium. 



The low ground of the Severn Valley north of Berkeley, 

 consisting principally of Lower-Lias clays and Keuper Marls, 

 is very unproductive of Mosses. Much of this country is 

 cultivated, either pasture or arable land, and there are no 

 rocks which form a suitable habitat for many species. The 

 only noteworthy Mosses in this district are species like Tortula 

 mutica and Brachythecium ccespitosum, which thrive in situa- 

 tions where they get periodical inundations. Further south, 

 in the Bristol district, there is more variety in the geological 

 formations, and on the Coal Measures a small quantity of 

 Sphagnum still survives. 



In the neighbourhood of Newent there is a small 

 district which lies on the Keuper Sandstone. This rock is 

 exposed in numerous cuttings through which the roads pass. 

 Tortula marginata, T. augustata, Bryum Donianum, and 

 Brachythecium illecebrum are common here, and in one place 



