140 FLORIDA GEOLOGICAL SURVEY-13TH ANNUAL REPORT

been done in comparing the lime-sink and lake regions.* The species that are commoner in the western division are more characteristic of drier or more calcareous or more phosphatic soils, and nearly all of them grow in Georgia if not farther north; while those commoner eastward are more characteristic of cypress ponds, bays, scrub, and sour soils generally, and are of somewhat tropical af finities, some of them being confined to Florida and others nearly so. The former list includes more trees, vines, oaks, and leguminous plants, and the latter more evergreens, pines, palms, and Ericaceae. In fact this plant list resembles that for the lake region about as much as it does that for the western division of the flatwoods.








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 Fig. 28. Nearly treeless prairie in Brevard County about 7%' miles west ofMelbourne and four miles from the St. John's River, looking northwest. The few scattered slash pines (Pins Caribcica) are the outposts of the pine forests which extend eastward to the Indian River. Between this point and the St. John's River there are practically no trees. Feb. 5, 1915.
 *Thej following seem to be more abundant westward: Pinus EUlliottii, Liquidam bar, Taxodiuju distich um, Oucrcus I irginiana, Magn olia grandiflora, Q uCrCUS nigra, Q. laurifolia, Ulnmus Floridana. .[uuipcrus, Magnolia glauca, Quercus cincrca, Q. Catcsbaci, Salixr, Carpins, Corn us florida, Rhus radicans, Parthen ocissus, Gclscmium, Amtpclopsis, Asunmna pygmnaca, Viburnum nudumn, Stillingia aqua tica, Viburnum obovca~m, Phoradeudron, Quercus pumila, Corn us stricta, Tillandsia usncides, Eupatoruim coinpositifoliumn, Pontederia, Carphcp lmorus, Sa urnrus, Tillandsia tcn uifolia, Jun cus Roecmcria nus, Lup in us diffusus, Panicum heinitomnon, Kuizuistera, Sagittaria lancifolia, Actinospermnum, and Sporobolus gracilis.
 The 'reverse is true of Taxodiumt imbricarium, Pins Caribaea, Sabal Pal-