Brassica nivea Boiss. & Spruner

AL-Shehbaz, Ihsan A. & Barriera, Gabrielle, 2019, Typification of Edmond Boissier’s Cruciferae (Brassicaceae) names enumerated in Flora Orientalis, Boissiera 72, pp. 1-193 : 165-166

Brassica nivea Boiss. & Spruner in Boiss., Diagn. Pl. Orient. 1: 72. 1843.

 Brassica cretica subsp. nivea (Boiss. & Spruner) M.A. Gust. & Snogerup in Bot. Chron. (Patras) 3: 8. 1983.

Type: “[Boissier] Hab. in fissuris rupium verticalium Acrocorinthi ubi Aprili ineunte montem totum elegantissimis ornat racemis”.

Holotypus: GREECE: “Rupes Acrocorinthi”, IV.1842, Boissier s.n. ( G-BOIS [ G00332640 ]; iso-: BM [ BM000750337 ], G [ G00389480 , G00389481 ], K [ K000653810 , K000653811 , K000653812 ], KW [ KW000127944 ], P [ P05333502 , P05333504 , P05441735 ], UPS) .

Notes. – The above combination was also superfluously published by Greuter & Burdet ( GREUTER & RAUS, 1985: 64).

Label of the holotype, which was handwritten by Boissier, shows April as the month of collection, as in the protologue. However, labels of all isotypes, which are printed mimeographs in Boissier’s handwriting, indicate March as the collection month. Because the plants of both holotype and isotypes are at the same developmental stage, and because there is only a single specimen of the species in G-BOIS, it is very likely that Boissier made a mistake in the month of collection. If it is shown otherwise, then the isotypes should be treated as syntypes.