For Hypoxidaceae
Herndon, A. 2002. Hypoxis. In Flora of North America Editorial Committee. 2002a. Flora of North America north of Mexico. Volume 26, Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York, NY. 723 pp.
Judd, W.S. 2000. The Hypoxidaceae in the southeastern United States. Harvard Papers in Botany 5: 79-98.
Kocyan, A., D.A. Snijman, F. Forest, D.S. Devey, J.V. Freudenstein, J. Wiland-Szymańska, M.W. Chase, and P.J. Rudall. 2011. Molecular systematics of Hypoxidaceae – evidence from plastid DNA data and inferences on morphology and biogeography. Molecular Phylogenetics and Evolution 60: 122-136.
Liu, X.L., J. Wen, Z.L. Nie, G. Johnson, Z.-S. Liang, and Z.Y. Chang. 2012. Polyphyly of the Padus group of Prunus (Rosaceae) and the evolution of biogeographic disjunctions between eastern Asia and eastern North America. J. Plant Res.
Nordal. 1998. In Kubitzki, K., ed. 1998a. The families and genera of vascular plants. III. Flowering plants – Monocotyledons – Lilianae (except Orchidaceae). Springer, Berlin. 478 pp.
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