References
For Hippeastrum
García, N., A.W. Meerow, S. Arroyo-Leuenberger, R.S. Oliveira, J.H. Dutilh, P.S. Soltis, and W.S. Judd. 2019. Generic classification of Amaryllidaceae tribe Hippeastreae. Taxon 68: 481-498. Google Scholar
García, N., R.A. Folk, A.W. Meerow, S. Chamala, M.A. Gitzendanner, R. Souza de Oliveira, D.E. Soltis, P.S. Soltis. 2017. Deep reticulation and incomplete lineage sorting obscure the diploid phylogeny of rain-lilies and allies (Amaryllidaceae tribe Hippeastreae). Molec. Phylogen. Evol. 111: 231-247. Google Scholar
Holmes, W.C. 2002c. Hippeastrum. 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. Google Scholar
Meerow, A.W., and D.A. Snijman. 1998. Amaryllidaceae. Pp. 83-110. In Kubitzki, K., ed. 1998a. The families and genera of vascular plants. III. Flowering plants – Monocotyledons – Lilianae (except Orchidaceae). Springer, Berlin. 478 pp. Google Scholar