Abelicea Baill. genus synonym

Zelkoua Van Houtte genus synonym

Ulmuxylon Sacchi Vialli, 1958 genus doubtful

Ulmites Endlicher, 1848 genus doubtful

Celtites J.Tuzson, 1911 genus doubtful

Planera J.F.Gmel. genus accepted

Ulmus L. genus accepted

Zelkova Spach genus accepted

Ulmites Dawson, 1891 genus accepted

Abelicea Rchb. genus synonym

Chaetoptelea Liebm. genus synonym

Calaunia Grudz. genus doubtful

Samaroceltis J.Poiss. genus synonym

Microptelea Spach genus synonym

Phyllostylon Capan. ex Benth. & Hook. genus accepted

Holoptelea Planch. genus accepted

Hemiptelea Planch. genus accepted

Ulmoxylon P.Kaiser, 1879 genus accepted

Holoptolaea Planch., 1848 genus doubtful

Holopetala Wight genus doubtful

Ulmus ×notha Wilhelm & G.Ware species synonym

Zelkovoxylon P.Greguss, 1969 genus doubtful

Cottaites Unger, 1842 genus accepted

Holopteleoxylon N.Awasthi, 1977 genus doubtful

Hethingeria Necker ex Rafinesque, 1838 genus doubtful

Ulmuxylon G.Charrier, 1951 genus doubtful

Ulmophyllum C.von Ettingshausen, 1887 genus accepted

Ulmacites R.Caspary ex H.Conwentz, 1886 genus accepted

Ulmaceaepites B.Biswas, 1962 genus accepted

Tremophyllum L.Rüffle, 1963 genus accepted

Eoceltis M.S.Zavada & W.L.Crepet, 1981 genus doubtful

Celtoidanthus Weyland, Pflug & Jähnichen, 1958 genus accepted

Celtixylon P.Greguss, 1943 genus doubtful

Celtidophyllum F.Krasser, 1896 genus accepted