xviii INTRODUCTION. 
Ground ; all the fecond leaves naturally rife upward, but 
they iffue from all fides of the firft leaf at the bafe of the 
vagina^ in the declined, as well as in the ere£l Plant ^ the 
Plant in this ftate makes the 
Equifetum fylvaticum procumbens fatis uno verfu difpojitis, 
Ray S} P. 131. No> 5. 
There is a Variety of Kqulfetum arvenfe^ which grows in 
very wet foils in clofe woods, amongft tall grafs or under the 
umbrage of various other Plants, in which the leaves are 
very flender, and greatly drawn out in length j in which ftate 
it makes the 
Equifetum pratenfis longiffimis fetis, Ray Syn. 131. No, 8. 
The fertile fhoots of Equifetum arvenfe come* up before 
the barren ones ; thefe are deftitute of fecond leaves, they 
are variegated with brown colours, and foon perifti ^ in this 
ftate they are the 
Equifetum nudum minus variegatum bafilienfe, Ray Syn, 
P, 130. No, 3. 
There is a variety of the Equifetum palujlrej which grows 
in fhady fituations or under trees, about the borders of ponds 
and brooks, wherein both the firft and fecond leaves are very 
flender, and drawn out in length, much beyond their ufual 
ftandard, and are frequently of a pale yellow-green colour j 
this is the 
Equifetum 
