Liliiflorae's a botanical name, which may be used for a taxon at a rank above that of family, but not for a rank where Art. 16 or 17 of the ICBN prescribes a standardised ending. The Engler system, in its update of 1964, and the Wettstein system, last revised in 1935, used this name for an order placed in the class Monocotyledoneae / Monocotyledones of the subdivision Angiospermae. This order corresponded roughly to the later order Liliales. As Liliaceae's the name of a family it's likely that t… (More on Liliiflorae)