ROUGH EQUISETUM. 
17 
ROUGH EQUISETUM, or DUTCH RUSH, [natural size). 
Equisetum hyemale, Linneiis. 
This plant appears to be almost unknown in the midland and 
southern English counties. Indeed, throughout the kingdom it is 
but sparingly distributed, and may be considered a strictly local 
plant. In Turner and Dillwyn’s Botanist’s Guide,’ the follow- 
ing English habitats are recorded : — in Northumberland, Scott’s 
wood, wood below Mill green, and Heaton wood ; in Cumber- 
land, Lowgelt-bridge ; in Durham, woods about Derwent-bridge 
