Sterigma longistylum Boiss. in Ann. Sci. Nat., Bot. ser. 2, 17: 387. 1842.

 Sterigmostemum longistylum (Boiss.) Kuntze, Revis. Gen. Pl. 1: 36. 1891.

Type: “[Aucher-Eloy] N. 4169 N, Schiraz”.

Lectotypus (designated here): IRAN: “Chiraz”, s.d., Aucher-Eloy 4169 N (G-BOIS [G00332247]; isolecto-: BM [BM000522212], G [G00383980], P [P00741729, P00741730, P00741744]).

Note. – Boissier annotated P00741730 and, therefore, the above lectotypification is justified.