This name is a synonym.
Acicalyptus seemannii A.Gray, Bonplandia (Hannover) 10: 35 (1862).
Calyptranthes seemannii (A.Gray) Seem., Fl. Vit.: 81 (1866).
Cleistocalyx seemannii (A.Gray) Merr. & L.M.Perry, J. Arnold Arbor. 18: 330 (1937).
Syzygium seemannii (A.Gray) Biffin & Craven, Blumea 50: 386 (2005).