GEOGRAPHY AND VEGETATION OF NORTHERN FLORIDA. 40I 



o Taxus Floridana Nutt. 



Alum Bluff, and reported from farther up the same river. Confined to 

 region 3, like the preceding. 

 0.5 Sabal Palmetto (Walt.) R. & S. Cabbage palmetto. 



Mostly in low hammocks and near coast. Not known west of St. An- 

 drew's Bay. 

 ? Yucca aloifolia L. Spanish bayonet. 



Dunes of east coast. 

 Juglans nigra L. (Black) walnut. 



Richest soils in regions i and 3. 

 Hicoria aqnatica (Mx.f) Britton. (Swamp) hickory. 



Mostly in alluvial swamps, but not confined to muddy .-.treams. 

 0.3 Hicoria alba (L.) Britton? Hickory. . 



Moderately rich uplands, widely distributed. 

 0.1 Hicoria glabra (Mill.) Britton? Hickory. 



Mostly in hammocks, with poorer soil than the preceding requires. 

 (There are probably two or three other hickories in our area, but they are 

 difficult to distinguish from the two preceding.) 

 ? Myrica cerifera L. Myrtle. (Usually only a shrub.) 



Low hammocks, etc., rather common. 

 ? Myrica inodora Bartr. 



Non-alluvial swamps in Middle and West Florida. Occasionally arbores- 

 cent in region 7. 

 0.1 Populus deltoides Marsh. Cottonwood. 



Banks of Apalachicola River mostly. 

 o Populus heterophylla L. (Cottonwood.) 



Banks of lower Apalachicola River, in region 9. 

 o.3Salix nigra Marsh. Willow. 



Banks of streams, etc., mostly westward. 

 ? Salix longipes Anders.? Willow. 



Mostly in marly swamps and low hammocks, particularly in region 15. 

 ? Salix Floridana Chapm. 



Somewhat calcareous swamps in regions i and 2; rare. 

 0.3 Carpinus Caroliniana Walt. (Ironwood.) 



Bottoms, low hammocks, etc., mostly northward. 

 0.2 Ostrya Virginiana (Mill.) Willd. 



Rich woods and hammocks, mostly westward. 

 0.2 Betula nigra L. Birch. 



Banks of creeks and rivers, mostly northward. 



(Several current botanical manuals credit betula leitfa L. to West Flor- 

 ida, but that seems to be wholly unfounded, for that species is not known 

 south of the mountains of Georgia and Alabama, and it is very stunted 

 even there.) 

 0.4 Fagus grandifolia Ehrh. (F. Americana Sweet.) (Our tree has been sep- 

 arated from the northern one as var. Caroliniana, but the differences are not 

 very marked.) Beech. 



Rich woods and hammocks ; common westward, rare or absent eastward. 

 o Castanea pumila (L.) Mill. Chinquapin. 



A small to medium-sized tree in regions 4 and 14; rare and usually only a 

 shrub elsewhere. 



