The sub-familial classification follows Givnish et al. (2007), Givnish et al. (2011) and Escobedo-Sarti et al. (2013), which is also used on the APG Website (2015). It differs from that found on the English Wikipedia, which follows the 3 sub-families monographed by Smith and Downs (1974, 1977, 1979).
The list of genera follows Govaerts et al. (2015), which differ in detail from Luther (2008) and Butcher and Gouda (2015). The later two authorities are largely followed by the Bromeliad Society International, whereas the former has arisen from botanic gardens and academic research groups. There is no doubt that generic limits need attention. Escobedo-Sarti et al. (2013) estimated that only 14/58 of the genera with two or more species included in their analysis were monophyletic. Andyboorman (talk) 19:50, 13 July 2015 (UTC)