mel turner schreef
http://www.mobot.org/MOBOT/Research/APweb/

gives:

"List of Genera in CANNABACEAE

Cannabis L.
Celtis L.
Gironniera Gaudich.
Helminthospermum Thwaites = Gironniera Gaudich.
Humulopsis Grudz. = Humulus L.
Humulus L.
Mirandaceltis Sharp = Aphananthe Planch.
Nematostigma Planch. = Gironniera Gaudich.
Parasponia Miq.
Pteroceltis Maxim.
Sparrea Hunz. & Dottori = Celtis L.
Sponia Comm. ex Decne. = Trema Lour.
Trema Lour."

* * *
Yes, as pointed out earlier, this is a link to a list on the Kew site.
As Kew and prof dr. P.F.Stevens (all too often) are not in full agreement it
pays to read the supporting text on the Missouri site, at which moment you
will see that a wider circumscription is advocated there (as noted earlier)
PvR