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JOHNSON AND YORK. 
2800 2850N 
2700 50E 
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Beitr TRANSECT OF SPIT, SHOWING DiIsTRIBUTION OF PLANTS IN RELATION TO TIDE-LEVELS ON SELECTED AREA, BETWEEN 
50 anp 100 Fret Hast, 1n Aucust, 1909. 
Every plant is located except for dominant or subdominant species. 
Salicornia europea and Sueda maritima at the margin of the Spartina zone, Ammophila arenaria and Poa compressa. 
By H. S. Conarp anp P. M. CoLtins. 
ScALE 1 ro 150. 
The exceptions are: Spartina glabra in its zone of dominance, 
The boundaries 
of the zones of Spartina glabra and of Ammophila arenaria are shown by a heavy wavy line. Abbreviations and conventional signs used 
are as follows: 
A = Asparagus officinalis. 
B= Oenothera biennis. 
E = Euphorbia polygonifolia. 
F= Cyperus filiculmis. 
H = Chenopodium album. 
K = Polygonella articulata, 
L = Limonium ecarolinianum. 
M = Ambrosia artemisicefolia. 
N= Xanthium echinatum. 
P= Panicum sp. 
Q = Quercus sp. 
R= Spartina patens. 
S = Salsola kali. 
T = Taraxacum officinale. 
V = Lactuca sp. 
Spartina glabra alterniflora. 
Ammophila arenaria. 
1¥1== Poa conupressa. 
)= Cakile edentula. 
© = Salicornia europea. 
@M = Sueda maritima. 
@ = Solidago sempervirens. 
* = Ailanthus glandulosa. 
A = Distichlis spicata. 
LJ= Atriplex patula hastata 
N= Atriplex arenaria. 

