370 FOSSIL EQUISETA. PAKT 11. 



of an inch in diameter, is incomparably less than the 

 Calamites and other fossil Equiseta, which appear in the 

 coal measures and new red sandstone. Recent species 

 are found in Iceland and the high northern latitudes of 

 America, in the tropics, and in most parts of the world, 

 except Australia and New Zealand. 



