FELICES BRITANNIC jE, 
E Q^U I S E T U M paluftre. 
Sp% Ph 15^^* Plo, AngL 448. Scot, 648. Cant, 384. Ray Syn, 131. 
*tab, 5. Fig, 3. Var, b. Ger, Em, 1113. Park, 1202* 
H A B , XXXV, 
MARSH HORSETAIL. 
^^^HE root is flender, black, jointed, and creeping; emitting black 
* hard fibres from the joints. 
The fertile fhoots are flender, and of a frefii green ; they are eight or 
ten inches high, and confift of feven or eight joints, furrounded with 
vaginae; two or three of the lowed; of which are wholly black, the 
others green, except the top, which terminates in feven or eight black 
acute dents, with white filmy margins. 
The uppermofl: vagina, which is placed immediately under the fpike, 
is longer than any of the reft, and is divided in very long, llender, black 
dents. 
The flower fpikes are fmaller than in any of the other fpecies, black 
at firft, but pale-coloured when full grown; the feminal valves being 
white, and difcharging a pale-coloured powder. 
The firft leaves produce fecond leaves at the bafe of the vaginae, 
which grow ered, each having a proper black vagina at its bafe \ they 
are 
