394 



Smith: Notes on the Vepetdtion ot Potids. 



channel. The ebb extends at least to the lower margin of the 

 Rush zone, but the Dropwort, Water Plantain, and Bur-reed 

 are all plants which may grow in a wet marsh, and it is probable 

 that this is the drought condition of that part of the pond 

 occupied by these plants. From the appearance of the Pond- 

 weed we should say that its area is never quite free from 

 standinsf water. 



N 





^ \ %^^ 



\^^ 



^ 





i 











**,jl*i't'); J, 



1^ = 



1 



Iris. 

 Pondvveed. 



Water Sweet -orass. 



r= Rushes. 



r= Bur-reed. 



= Marsh Horsetail. 



(Further explanation 

 in text.) 



' Fig. 3.— A 'dry' Pond. 



Fig. 3. — This represents what has been a pond but is now so 

 dry that it might be described as a dry marsh. At the time we 

 saw it (by no means a period of drought) one could walk over 

 any part of it. The shape of the hollow is like that of the true 

 ponds, and there is a distinct outflow channel. There is also an 

 inflow channel of the kind seen in Fig. 2, namely, an occasional 

 channel which drains the overflow from some adjacent hollow. 



Naturalist, 



