For Ilex
Clark, R.C. 2023. Hollies (Aquifoliaceae) of North America north of Mexico. Phytoneuron 2023-13: 1-19. Published 17 February 2023. ISSN 2153 733X
Godfrey, R.K. 1988. Trees, shrubs, and woody vines of northern Florida and adjacent Georgia and Alabama. University of Georgia Press, Athens.
Krakow, G.A. 1989. A systematic study of Ilex ambigua, Ilex decidua and related taxa. M.S. thesis, Univ. of Georgia, Athens.
Manen, J.-F., M.C. Boulter, and Y. Naciri-Graven. 2002. The complex history of the genus Ilex L. (Aquifoliaceae): evidence from the comparison of plastid and nuclear DNA sequences and from fossil data. Plant Syst. Evol. 235: 79-98.
Powell, M., V. Savolainen, P. Cuénoud, J.-F. Manen, and S. Andrews. 2000. The mountain holly (Nemopanthus mucronatus: Aquifoliaceae) revisited with molecular data. Kew Bulletin 55: 341-347.
Whittemore, A.T. [in prep.]. Ilex. FNA.
Wunderlin, R.P., and J.E. Poppleton. 1977. The Florida species of Ilex (Aquifoliaceae). Florida Sci. 40: 7-21.
Yang, Y., L. Jiang, E.-D. Liu, W.-L. Liu, Y.-X. Kou, D.-M.Fan, S.-M. Cheng, Z.-Y. Zhang, and H. Peng. 2023. Time to update the sectional classification of Ilex (Aquifoliaceae): new insights from Ilex phylogeny, morphology, and distribution. J. Syst. Evol. 61(6): 1036-1046.
Yao, X., Y. Song, J.‐B. Yang, Y.‐H. Tan, and R.T. Corlett. 2021. Phylogeny and biogeography of the hollies (Ilex L., Aquifoliaceae). J. Syst. Evol. 59(1): 73-82.
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