328 
The Ohio Naturalist. 
[Vol. VIII, No. 6, 
3. The Cove Habitat. This habitat comprises those por¬ 
tions of the Bay which are enclosed by peninsulas, etc., in such 
a manner as to be protected from the action of currents and surf, 
and in which the water is several feet at least in depth. 
The Beach Habitat. 
This structure is practically the same beach as is to be found 
along the Lake shore of the peninsula, although less strongly 
developed. It has also the same vegetational formations some¬ 
what less well developed and so will not need here a separate 
discussion. This habitat comprises much of the western shore 
of the peninsula, northwards from the end of the small peninsula 
at the entrance to Biemiller’s Cove. 
The Marsh Habitat. 
This structure is exceedingly well developed between the 
Bar Section of Cedar Point and the mainland to the south and 
west, embracing altogether hundreds of acres of pure marsh. 
From Moseley’s researches it appears certain that portions of 
this marsh have remained marsh for hundreds of years, the 
accumulation of vegetable debris, transformed into muck, having 
been so nearly equal to the cumulative rise of water that the 
marsh vegetation has been able to successfully hold the habitat 
against all invaders for a very long period. It is further to be 
remembered that this area was formerly a part of the mainland 
and at one time covered with forest which was eventually killed 
by the rise of the water, the marsh then taking its place, perhaps 
an intervening thicket first appearing. The retarding of the 
currents of the streams entering the marsh at the present and the 
occurrence of marsh thickets and pure marshes along the retarded 
and widening stream are at present indicative of the method of 
origin of the marsh. 
The structure of the vegetation in the Marsh Habitat may 
be analyzed thus: 
a. The Scirpus Formation, 
b. The Phragmites-Typha Marsh Formation, 
c. The Salix discolor-lucida Thicket Formation, 
or the Calamagrostis Wet Meadow Formation, 
d. The Rhus hirta Thicket Formation, 
e. The Ulmus-Acer Forest Formation. 
The Scirpus Formation. 
This formation is nearly related to the Typha-Scirpus for¬ 
mation of the Lagoon Succession but, as we have pointed out for 
Presque Isle, there is a separation of the two species of that for¬ 
mation when the conditions of the Marsh Habitat are attained. 
Scirpus validus and Scirpus americanus are morphologically so 
constructed as to have a life-form very little affected by surf, 
