Anders Fredrik Regnell, Swedish-born Brazilian physician and naturalist (Stockholm 07 June 1807 – Caldas, Minas Gerais State 12 September 1884)

Described the orchid species Brasiliorchis serotina 1881 with Barbosa Rodrigues

HONORS 

Regnellidium Lindman 1904 (Pteridophyta)

Neoregnellia Urban 1924 (Malvaceae)