Typification of Edmond Boissier’s Cruciferae (Brassicaceae) names enumerated in Flora Orientalis Author AL-Shehbaz, Ihsan A. Missouri Botanical Garden 4344 Shaw Boulevard St. Louis, Missouri 63110, USA ihsan.al-shehbaz@mobot.org Author Barriera, Gabrielle Conservatoire et Jardin botaniques de la Ville de Genève Case postale 71 1292 Chambésy, Switzerland gabrielle.barriera@ville-ge.ch text Boissiera 2019 2019-12-23 72 1 193 journal article 10.5281/zenodo.7630433 180b8c6d-242a-4fff-a1a3-e88d2e1e51ed 978-2-8277-0088-2 0373-2975 7630433 Petrocallis fenestrata Boiss. & Hohen. in Boiss., Diagn. Pl. Orient. 8: 27. 1849 .  Elburzia fenestrata (Boiss. & Hohen.) Hedge in Notes Roy. Bot. Gard. Edinburgh 29: 181. 1969 .  Didymophysa fenestrata (Boiss. & Hohen.) Esmailbegi & Al-Shehbaz in Taxon 67: 334. 2018 . Type: “Hab. in saxosis Meidan Abdallah in valle Loura montis Elbrus Kotschy Nº 493 et 795”. Lectotypus (designated here): IRAN : “In saxosis Meidan Abdullah in valle Loura m. Elbrus”, 15.VII.1843 , Kotschy 493a 795 ( G-BOIS [ G00332464 ]; isolecto-: P [ P02272395 ], W [ W0053489 ]) . Notes. – BOISSIER (1849) based the species description on the unicate in his herbarium and on P 02272395 that he annotated and, therefore, lectotypification of the name is justified. Both Kotschy 493a and Kotschy 795 are listed in protologue and on the labels of the lectotype and W0053489 . By contrast, the label of P duplicate has only Kotschy 493a . Since the other information on all duplicates of the type collection is identical, it is not possible to determine why Kotschy used both numbers on the lectotype and W isolectotype duplicates. Following its transfer to Elburzia Hedge by HEDGE (1969) , the species remained in that genus to the present. However, molecular phylogenetic studies by ESMAILBEGI et al. (2018) strongly support its assignment to Didymophysa .