1/2 FLORIDA GEOLOGICAL SURVEY-SEVENTH ANNUAL REPORT. 
About 80% of this vegetation is evergreen. Ericaceae are rela¬ 
tively abundant, especially among the small trees, and there are only 
two leguminous plants in the list, Amorpha and Erythrina. All 
this indicates that the soil is not very productive, notwithstanding 
its considerable humus content and the density of the vegetation, 
which might deceive a person not accustomed. to these conditions. 
This is evidently realized by the farmers, who have made little at¬ 
tempt to' cultivate any of the sandy hammock land. The vegetation 
as a whole is more ornamental than useful.* 
Intermediate hammocks . There are a few hammocks in the 
vicinity of Ocala intermediate between the sandy hammocks and the 
type next to be described. Most of them are surrounded by high 
pine land, and the reason for their existence is not apparent until 
they are entered and found usually to have for a nucleus a small 
pond or sink-hole. The soil is usually a little rocky, and presumably 
somewhat richer in plant food than that of the high pine land and 
sandy hammocks. Probably each hammock of this kind originated 
as a small patch of hardwood trees in a sink-hole, or a fringe of 
them around a pond, where there was some protection from fire, 
and gradually spread outward from the center, their growth being 
facilitated by the moderately fertile soil. The vegetation in such 
places seems to contain no plants that are not found in one of the 
other kinds of hammocks, and it need not be described here. 
8 . (CALCAREOUS) HIGH HAMMOCKS. 
( FIGURE 67.) 
This type of vegetation is common within a few miles of Ocala, 
on various soils of the “Fellowship” and “Gainesville” series; and 
most of it is at a little higher elevation than the prevailing pine 
lands, as can be seen from the contours on the soil map. 
The soil consists of sand, clay and rock mixed in various propor¬ 
tions, and varying considerably in short distances. Some of the 
rock, especially around sinks and caves, is a nearly pure soft lime¬ 
stone (Ocala formation), but a good deal of it is a sort of friable 
gritty sandstone of later age (presumably the Alum Bluff forma¬ 
tion). The soil at its poorest extreme does not differ much from 
*Much of this paragraph and of the foregoing plant list would apply equally 
well to the so-called “pocosin” of Pike County, Ala., which is a sandy hammock, 
described by the writer in Bull. Torrey Bot. Club 411209-220. 1914. 
