Draba aucheri Boiss.

AL-Shehbaz, Ihsan A. & Barriera, Gabrielle, 2019, Typification of Edmond Boissier’s Cruciferae (Brassicaceae) names enumerated in Flora Orientalis, Boissiera 72, pp. 1-193 : 107-108

Draba aucheri Boiss. in Ann. Sci. Nat ., Bot. ser. 2, 17: 166. 1842.

Type: “[Aucher-Eloy] N. 92, Alpes Zerdkou”.

Holotypus: IRAN: “in Zerdakou”, s.d., Aucher-Eloy 92 ( G-BOIS [ G00332072 ]; iso-: G [ G00441255 , G00441256 ], K [ K000729819 ], P [ P00747370 , P 02272365]) .

Notes. – Boissier did not examine or annotate any of the sheets at P or G and based the species solely on the duplicate in his herbarium.

Three species names were published by Boissier and compete for recognition: Arabis sulphurea (see under that genus) was a renaming of Draba aucheri in Arabis , Draba linearis (next entry) was simultaneously published with D. aucheri ( BOISSIER, 1842b) , and SCHULZ (1927: 316) reduced it to a variety of D. aucheri . Subsequent authors, including myself, have since placed both D. linearis and Arabis sulphurea in synonymy of Draba aucheri . Oddly enough, Boissier recognized the very same species as Arabis sulphurea (Fl. Orient. 1: 173–174) and as Draba linearis (Fl. Orient. 1: 303).

The single species recognized here has yellow flowers, a feature taxonomically important in Draba , though it is never found in any species of Arabis .