Trigonella arguta Visiani (1836a: 217

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 arguta Visiani (1836a: 217 ; also treated in Visiani 1836b: 33; 1836c: 68)

Locus classicus: —“in AEgypto”.

Lectoype (designated here):— EGYPT. s.l., [ante 1835], Acerbi s.n. (PI005427!) (see Fig. 7).

Additional specimen examined:— EGYPT. s.l., [1824–1826], Brocchi [?] s.n. (PAD-H0057915!).

Note:—Visiani did not mention the collector of T. arguta in Visiani (1836a, 1836b, 1836c). The specimen here selected as lectotype, collected by Acerbi, bears a label in the handwriting of Visiani and with his signature. It was recognised as pertaining to T. laciniata Linnaeus (1763: 1095) by Rosa Baldini in 1999 (in sched.), which we can confirm. The second specimen we examined was collected by Brocchi, but only bears the genus name in the original label and may not have been seen by Visiani before 1836. A second unsigned label, almost certainly by Emilio Chiovenda, who examined Brocchi’s specimens in 1919 (in sched.), identifies it with the unpublished designation ‘ Trigonella laciniata var. arguta ’, confirming our taxonomical conclusion on this poorly understood name.