20 Nature threatened 
flora, is everywhere threatened. It 
is dug up by gardeners and florists. 
In England, the plant (always local) 
is now very rare, and exists in only a 
few localities. Forty years ago, it was 
said of it : Once plentiful in Castle 
Eden Dene, but now, we fear, nearly 
extirpated^" The species, however, 
is not quite extinct in England, as 
Mr J. G. Baker wrote to me in August, 
1906: — ''It still lingers at the old 
locality in Durham (Castle Eden Dene) 
and was gathered last year at two 
places in Yorkshire..." In all Den- 
mark, it has only one habitat (see 
page 104). On the chalk rocks of 
Thuringia, the plant is still fairly com- 
mon, although even there it is threat- 
ened by trade. Near Jena, several 
1 Baker, J. G., and Tate, G. R. A new Flora 
of Northumberland and Durham. Natural History 
Transactions of Northmnberland and Durham^ 
Vol. n. London, 1868, p. 256. 
