IOWA ACADEMY OF SCIENCES. 
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next the river. Back of this comes a stretch of swamp, 
broken by occasional Low Hammock, and beyond this, in 
turn, lies the pine country. The difference between the 
Hardwood Bottom and Low Hammock is physical only. 
Their flora is identical. 
TYPICAL TREES OF SWAMP, LOW HAMMOCK, AND HARDWOOD BOTTOM. 
Taxodium distichum (Linn.) Rich. Cypress. Swamp. 
Abundant. 
PiNusTiEDA Linn. Loblolly Fine. Frequent on border 
of swamp near Longleaf pine area, and on Low Hammock. 
P. EOHiNATA Mill. Shortleaf Pine. Occasional in same 
surroundings as foregoing species. 
PiNus PALUSTRis Mill. Longleaf Pine. Very rare in Low 
Hammock or Hardwood Bottom. Never in swamps. 
Hicoria aquatioa (Michx.) Britton. Water Hicko7^y. 
Hardwood Bottom. Common. 
Hicoria ovata (Mill.) Britton. Shaghark. Hardwood 
Bottom. Common. 
Hicoria glabra (Mill.) Britton. Pignut. Bottoms. 
Common. 
Hicoria alba (L.) Britton. Mocker Nut. Bottoms. 
Common. 
OsTRYA viRGiNiANA (Mill.) Koch. Irouwood. Bottoms 
Not very common. 
Fagus atropunicea (Marsh.) Sudw. Beech. Bottoms. 
Very common. 
Betula nigra Linn. Pviver Birch. Bottoms. Uncom- 
mon. 
Quercus alba Linn. White Oak. Bottoms. Common. 
Q. lyrata Walt. Overcup Oak. Bottoms. Rare. 
Q. MioHAUxii Nutt. Cow Oak. Bottoms. Common. 
Q. DiGiTATA (Marsh.) Sudw. Bottoms and uplands. 
Edge of pine area. Common. 
Q. NIGRA Linn. Water Oak. Swamps and bottoms. 
Abundant. 
Q. LAURiFOLiA Michx. Laurel Oak. Not uncommon in 
Sabine river bottoms. 
