256 BOTANICAL GAZETTE [arm 
absence of belts of trees and shrubs along the banks of the creck 
The only woody plant seen growing on the outside of the mart 
was Amorpha fruticosa L. Along the stream which flows through 
the marsh there are here and there patches of deposits some- 
what raised above the general level and rather free from salt 
These contain some plants which could not otherwise grow in 
the marsh. There are also sedges growing along the stream, 
and its muddy bottom is covered with a brown deposit — 
of diatoms. The greater part of the marsh proper is entirey 
barren, but in some places there are isolated patches of sil ‘ 
marsh plants. On the outer portion beyond the barren — 
there are often well marked zones of vegetation, especially 
where the ground rises gently from the marsh. Here the zones 
are very distinct, while in other places they may be crowded 
close together, and some zones may be omitted entirely. 
The three sedges which grow in and along the sien 
Scirpus pungens Vahl., S. campestris Britton, and S. lacustris L. 
In the higher patches of alluvial deposit along the pe 
the following plants were collected: Daestichlis mantima Rat. 
Panicum Crus-galli L.., Elymus Virginicus L., Spartina cyno — 
Willd., Rumex Britannica L., Polygonum Hydropiper L., P fe : 
caria L.., P. ramosissimum M ichx., Amarantus chlorostachys Wil : 
va ciliata Willd. 
In the barren portion away from the stream, tes 
ground is a little higher and less salty, there were ee 
Polygonum ramosissimum Michx. and Distichlis — ont 
often both these plants were growing together, the " " is : 
usually occupying the center, and the Distichlis 10 
border around it. : 
On the outer margin of the barren area, ; 
gentle rise of the ground from the marsh outward, t | 
ing seven zones were determined. 4 entirely 
First zone: A few yards wide and compose gs was oF 
Distichlis maritima Raf. On the inner side the By and #8 
dently having a hard struggle for a meager existenc® © — 
mostly dead. 
where the ; 
a 
where there 4° 
e follow 
