Parmelia alabamensis, a new species of lichen from AlabamaMason E. Hale, Herbert A. McCullough · First published 1968Open the Tome
Foliose and fruitcose lichens of the Piedmont Upland of AlabamaHerbert A. McCullough · First published 1964Open the Tome
The non-crustose lichens of the Howard College Natural AreaHerbert A. McCullough · First published 1962Open the Tome