It is shown that the correct author citation of the name Kalanchoe marnieriana (Crassulaceae) is “H.Jacobsen ex L.Allorge”, which was published in P. Boiteau & L. Allorge-Boiteau, Kalanchoe (Crassulacées) de Madagascar (1995: 102), as this replacement name for the illegitimate K. humbertiiMannoni & Boiteau (1947), non Guillaumin (1939), was only validly published by L.Allorge in 1995, and not by Jacobsen in 1954. If treated as a species of Bryophyllum Salisb., the correct author citation is B. marnierianum (H.Jacobsen ex L.Allorge) Govaerts. This often overlooked new combination in Bryophyllum was published by Govaerts in 1996. We also provide notes on the nomenclature and taxonomy of Madagascan taxa of Kalanchoe Adans. described in Boiteau & Allorge-Boiteau in 1995.