Matthiola arabica Boiss. in Ann. Sci. Nat., Bot. ser. 2, 17: 49. 1842.

Type: “[Aucher-Eloy] N. 132, Sinaï. – M. tritis Decaisn. Florul. Sinaica. – Unio itin, n. 214 – Arabicè Chomchom ”.

Lectotypus (first step designated by BOULOS, 1999: 200; second step designated here): EGYPT: “Arabice: Chomchom. Inter lapides ad radices montis Sinai ”, 26.V.1835, Schimper 314 (G-BOIS [G00332639]; isolecto-: BM [BM000614131], E [E00126651, E00126652, E00126653, E00126654], G [G00446296, G00446297], HAL [HAL0120818], HBG [HBG506160, HBG506161], K [K000230668, K000230669], KW [KW000127934], P [P00731164, P00731165, P05445189]) . Syntypus: EGYPT: “ Sinaï ”, s.d., Aucher-Eloy 132 (G [G00371816, G00446608], G-BOIS [G00332034], K [K000618624, K000618625], MO [MO5654247], P [P00731161, P00731162, P00731163], US [US00344712]) .

Notes. – BOULOS (1999) narrowed the selection to one of the two syntypes cited in the original publication and listed Schimper 314 at K as the isolectotype (as isotype). The designation here of the duplicate in G-BOIS as the lectotype completes the process.

The collection number was erroneously given in the original description as 214, but this was corrected to 314 in BOISSIER (1867a: 152).