* Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 6, May 2005. 
Cyrillaceae is a small family of flowering plants in the order Ericales, native to warm temperate to tropical regions of the Americas. The family comprises two genera, each with a single species, Cyrilla racemiflora and Cliftonia monophylla.
In the past, many botanists included a third genus Purdiaea in the family, though recent research has shown this genus is better placed in the closely related family Clethraceae (Anderberg & Zhang 2002).
* Cyrillaceae in L. Watson and M.J. Dallwitz (1992 onwards). The families of flowering plants.
Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License