Physorhynchus chamaerapistrum (Boiss.) Boiss., Fl. Orient. 1: 403. 1867.

 Zilla chamaerapistrum Boiss. in Ann. Sci. Nat., Bot. ser. 2, 17: 381. 1842.

Type: “[Aucher-Eloy] N. 4169 A, Persia australis”.

Lectotypus (designated here): IRAN: sine loco, s.d., Aucher-Eloy 4169 A (G-BOIS [G00332670]; isolecto-: BM [BM001254149, BM001254159], G [G00371873], K [K000653942], P [P00580390, P00741675, P00741676, P00741677]) .

Note. – Because BOISSIER (1842c) based his species description on the unicate sheet in his herbarium and on P00580390 that he annotated, the lectotypification is justified. The above other sheet at G was not examined by Boissier.