VARIEGATED EQUISETUM, 31 
t VARIEGATED EQUISETUM, {natural size). 
Equisetum variegatum, Smith, Hooker. 
This, like the preceding species, is local, occurring generally 
on dry moveable sand in the immediate vicinity of the sea, but 
sometimes in ditches, canals or rivers, when it assumes a some- 
what enlarged and altered appearance. 
In England it occurs at the mouth of the Mersey : I have 
