Trigonella dura Visiani (1836a: 216

Clementi, Moreno, D’Antraccoli, Marco & Miola, Antonella, 2019, Nomenclatural and taxonomical notes on some taxa described by Roberto de Visiani from Egypt and Sudan, Phytotaxa 399 (1), pp. 49-64 : 58

Trigonella dura Visiani (1836a: 216 ; also treated in Visiani 1836b: 32; 1836c: 67)

Locus classicus: —“in AEgypto”.

Lectotype (designated here): Illustration in Visiani 1836a: tab. 7 fig. 1 (see Fig. 6 ).

Note:—Despite thorough research, we were unable to locate any specimen clearly pertaining to T. dura . Visiani’s illustration (see Fig. 6 ) that was published along with the protologue, can be selected as a lectotype. By comparing both the description and illustration provided in Visiani (1836a) with a more recent treatment of Trigonella Linnaeus (1753: 776) in Egypt ( Boulos 2000), we conclude that the name should be considered a later, heterotypic synonym of T. maritima Delile ex Poiret (in Lamarck & Poiret 1817: 361), as was previously suggested (Euro+Med 2018). In particular, the illustration clearly shows the characteristic ridges of the pod that are considered one of the main diagnostic features of T. maritima .

Figures

FIGURE 6. Lectotype of Trigonella dura Vis. Reproduced from Visiani (1836a: tab. 7 fig. 1).