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Family numberFamilyVersionsAuthor
21 Cupressaceae
22 Nymphaeaceae
23Hydatellaceae 1 J.G. Conran
24 Lauraceae
25 Ceratophyllaceae
26 Araceae
27 Alismataceae
28 Hydrocharitaceae
29 Aponogetonaceae
30 Juncaginaceae
31 Posidoniaceae
32 Ruppiaceae
33 Cymodoceaceae
34 Potamogetonaceae
35 Zosteraceae
36 Alstroemeriaceae
37 Colchicaceae
38 Orchidaceae
39 Hypoxidaceae
40 Iridaceae