The genus Crinum is a pantropical genus meaning that it is found in tropical regions of all the continents including Africa, America, Australia, and Asia.
The genus contains about 65 species with a center of diversity (around 40 species) in Africa. Crinum mauritianum is known from the island of Mauritius, one of the three Mascarene Islands, where it is rare. The seeds of Crinum are adapted for water or oceanic dispersal, which is thought to have contributed to the widespread distribution of this genus. Many Crinum species are cultivated for their attractive flowers and many hybrids have been developed.
(Meerow, A.W., D.J. Lehmiller, & J.R. Clayton. 2003. Phylogeny and biogeography of Crinum L. (Amaryllidaceae) inferred from nuclear and limited plastid non-coding DNA sequences. Botanical Journal of the Linnean Society 141: 349-363.)
(Stevens, P. F. (2001+). Angiosperm Phylogeny Website. Version 7, May 2007 [updated 05/28/2007]. http://www.mobot.org/MOBOT/research/APweb/.)