1. Adams, R. P., Bartel, J. A., & Price, R. A. (2009). A new genus, Hesperocyparis, for the cypresses of the western hemisphere. Phytologia, 91(1), 160–185.
2. Adams, R. P., Bartel, J. A., Terry, R., Callahan, F., & Bisbee, J. (2014). Taxonomy of Hesperocyparis montana, H. revealiana, and H. stephensonii: Evidence from leaf essential oils analyses and DNA sequences. Phytologia, 96(2), 71–83.
3. Alverez, I., & Wendel, J. F. (2003). Ribosomal ITS sequences and plant phylogenetic inference. Molecular Phylogenetics and Evolution, 29, 417–434.
4. Axelrod, D. I. (1980). History of the maritime closed-cone pines, Alta and Baja California (Vol. 120, p. 143). Berkeley: Univ. Calif. Publ. Geol. Sci.
5. Beck, C. B. (1960). The identity of Archaeopteris and Callixylon. Brittonia, 12, 351–368.