Career
From 1908 he was associated with the Mascarene botanist Marcel Marie Maurice Dubard, carrying out much taxonomic work under the name of Dubard & Dop. Pauldopia Steenis 19691 in the family Bignoniaceae
(Ericaceae) Vaccinium dopii H.F.Cope (=Vaccinium dunalianum var urophyllum Rehder & EH Wilson)
(Lamiaceae) Premna dopii C.Pei (=Premna tapintzeana Dop)
(Lamiaceae) Teucrium × dopii Sennen.