Pines, Sycamore, shellbark Hickory.
"Directions for Collecting and Preserving Insects"
C. V. Riley
The black walnut, ash, shellbark hickory, black and white oak, sturdily grown, evidence a soil rich in lime, while the pines, small blackjack and post oaks, and the chestnut are at home in non-calcareous soils.
"Right Use of Lime in Soil Improvement"
Alva Agee
In compressed form, in color of nut, also in the angularity and thickness of shell, it is quite similar to shellbark hickory.
"The Pecan and its Culture"
H. Harold Hume