Gagnep. No year - Gagnepain F (1925) Euphorbiacées nouvelles ( Actephila, Anlidesma, Baliospermum, Blachia, Cleislanthus, Croton, Daphniphyllum, Epiprinus, Mallotus, Nephrostylus , n. g., Poilaniella , n. g., Prosartema, Trigonostemon ). Bulletin de la Société Botanique de France 72: 458-470. doi: 10.1080/00378941.1925.10832756.
There is no corrections for Trigonostemon sanguineus yet.