The Strange Quest to Save North America’s Most Elusive Oak Tree
There was perhaps no one better than Cornelius H. Muller—one of twentieth-century America’s most notable oak fanatics—to document the continent’s most mysterious oak trees. In July 1932, the horseback-riding botanist first encountered Quercus tardifolia while collecting samples in the steep-cut canyons of Texas’s Big Bend National Park. Muller jotted down details of the twigs (slender, somewhat fluted), buds (hairy at the tip), leaves (dull blue-green), and branches (short, stiff). He anointed it with a Latin name that referenced the tree’s late-season leaf development.