Memoirs of The New York Botanical Garden, Volume 69 by Aaron J. Sharp, Howard Crum, and Patricia M. Eckel
Work on this monograph began in the early 1940s as an effort to determine the degree to which the flora of Mexico and the southern Appalachian Mountains are similar. The flora presented in this volume represents the efforts of 32 experts active in floristic and monographic revisions of families and genera represented in Mexico. Their collective work has expanded the known ranges of the Mexican species of mosses, netted many species new to science, and placed many others in synonymy, thereby demonstrating phytogeographic ties to many parts of the world other than the southern Appalachians.