51 
EQUISETUM PALUSTEE. Lixx^us. 
(2£arsh Horsetail.) 
SYXOXYMES. 
Present name generally adopted. 
DESCRIPTIOX. 
Stems nearh^ all fertile, but Mdien barren are the same as 
the fertile. From a foot to eighteen inches high, with 
whorls of simple branches. Sheaths distant, with about 
six teeth with membranous margins and tipped with black. 
Sheaths of the branches with fewer teeth. 
Spike about one inch to an inch and half long, with 
fructification as in the preceding. Two or thi’ee varieties of 
this plant are sometimes found, the most beautiful being 
the one where the branches of one or two of the upper 
whorls end in spikes like the terminal one. This plant can 
be gi’own in the same way as the E. sylvaticum. 
USES. 
The same as the other horsetails. 
LOCALITIES. 
AVet marshy places. AValton. 
Plate XXV. 
