THE PINES OF MEXICO AND CENTRAL AMERICA.
Portland, OR: Timber Press, 1991. Hardcover. 7 x 10 1/2, 231 pgs, index, bibliography, b&w photos. Based on 40 years of collecting trips, laboratory reseach, studes of herbarium specimens, and information published by Botanists and forresters. All species and varieties fully described including directions to habitat sites. More