CITRUS SOILS. 221 



eb. ) . Frequently flat woods land is thickly covered with an 

 undergrowth of saw palmetto (Serenoa serrulata Hook.), 

 and gallberry (Ilex glabra). In many places the flat 

 woods land approaches the high pine land in elevation. 

 Such lands are usually well adapted to citrus culture. 

 On the other hand, much of the land designated as flat 

 woods is low, flat and undrainable and is entirely un- 

 suited to the growth of citrus trees. The surface soil con- 

 tains a considerable amount of humus, while the sub-soil 

 may be clay, hardpan or rock. Those which are subject 

 to overflow, not readily drained and which have a hard, 

 compact sub-soil, should be avoided. On the other hand, 

 those of intermediate character, as noted above, are among 

 the best of Florida's citrus soils. 



High hammock lands correspond in a large measure 

 to the high pine lands. They are well drained and ele- 

 vated, but are covered with a native growth of hardwood, 

 evergreen and deciduous trees. Among these may be men- 

 tioned holly (Ilex opaca Ait.), hickory (Carya tomen- 

 tosa Nutt.), live oak (Quercus virens Ait.), dogwood 

 (Gornus Florida) and magnolia (Magnolia grandiflora). 

 Lands of this character are well supplied with humus, 

 have a comparatively deep, rich soil and are well adapted 

 for citrus culture. The analyses of these soils show about 

 .0658 per cent of nitrogen, .06 per cent of lime, .014 per 

 cent phosphoric acid and a trace of potash. 



The high hammock lands shade off into the low ham- 

 mocks. These latter are covered with a growth of nearly 

 the same character, but the live oak is more in evidence 

 and the cabbage palmetto (Sabal palmetto R. & S.) is quite 

 abundant. The surface soil contains a large amount of 

 humus and they are consequently rich in nitrogen. They 

 are generally difficult and costly to clear, but if well 



