1903] VEGETATION OF THE BAY OF FUNDY MARSHES SH | 
places it is not over three inches (8™) in height, red in color, 
and stiffly erect; extends also insidethe dikes on the bald places 
and along the roads, where it may become several times larger, 
decumbent and spreading and clear green. The dominant mem- 
ber of the Salicornetum. ' 
Its vegetation-form is well-known and characteristic. It is a 
fibrous rooted annual, with a jointed, branching, succulent, prac- 
A eee Ee Nar base Se oy 
| 
Fic. 12.— Showing a‘typical piece of Salicornetum on new marsh. 
tically leafless stem, tending to verticality of green tissues, 
varying in size inversely with the saltness of the habitat. Its 
anatomy is markedly xerophytic, for in addition to the reduction 
of surface, the jointing and verticality described above, it pos- 
sesses a compact stele (with cortical system of bundles replacing 
those of the abandoned leaves) thick water-storing cortex, dense 
palisaded chlorenchyma, small-celied thick-cuticled epidermis, 
small and narrow-slitted stomata, all markedly xerophytic fea- 
tures. The air storage system, however, is limited, consisting of 
intercellular spaces of ordinary size, and certain air-storing 
tracheids near the stomata. This is sufficient, however, to per- 
