Alyssum callichroum Boiss. & Balansa in Boiss., Diagn. Pl. Orient. ser. 2, 5: 34. 1856.

 Odontarrhena callichroa (Boiss. & Balansa) Španiel et al. in Pl. Syst. Evol. 301: 2484. 2015.

Type: “Hab. in regione montanâ superiori montis Masmeneudagh inter Taurum et urbem Caesaream siti. Floret Augusto. Fr. Septembri”.

Lectotypus (designated here): TURKEY: “Région montagneuse supérieure du Masmeneu-Dagh, à 25 lieues au SSO.de Césarée ”, 7.IX.1855, Balansa 432 (G-BOIS [G00332338]; isolecto-: BM [BM000583287], CAS [CAS0026903], E [E00105991], G [G00388596, G00388597], GH [GH00018468], GOET [GOET002677], JE [JE00003011], K [K000484860, K000484861, K000484862], MPU [MPU011455, MPU013355], P [P02272253, P02272254], US [00100409], W [W0069851, W18890076139]) . Syntypus: TURKEY: “Région montagneuse supérieure du Masmeneu-Dagh, à 5 lieues au SSO de Césarée ”, 8.VIII.1855, Balansa 172 (G-BOIS [G00332340]) .

Notes. – Lectotypification is needed to narrow the selection of the lectotype to one of the two duplicates in G-BOIS that consists of only fruiting material.

The other G-BOIS specimen is a flowering material collected in August, with the field number 172 and recognized here as a syntype.

As for the other isolectotypes, some consist of only fruiting material and these pose no concerns, but those with mixed flowers and fruit (such as the two duplicates at G), only the fruiting specimens are isolectotypes.