Aspidosperma desmanthum Benth. ex Müll.Arg. in Mart. & auct. suc., Fl. Bras. 6(1): 51. 1860.

≡ Macaglia desmantha (Benth. ex Müll.Arg.) Kuntze, Revis. Gen. Pl. 2: 416. 1891.

Lectotype (designated here): — BRAZIL. Amazonas: Alto Amazonas, prope Panuré ad Rio Uaupés, Oct 1852 – Jan 1853, R. Spruce 2618 (K [barcode K000587698 image!]; isolectotypes: BR [barcode 0000006956417 image!], C [barcode C10005733 image!, barcode C10005734 image!], E [barcode E00259707 image!], G [barcode G00169295 image!, barcode G00169296 image!, barcode G00169297 image!], GH [barcode 00057209 image!], NY [barcode 00297960 image!, barcode 00297961 image!], P [barcode P00639548 image!], RB [fragment] [barcode 0535030!], TCD [barcode TCD0006577 image!], U [barcode U0000471 image!], W [No. 1889-0011847 image!]) .

Notes — Müller-Argoviensis (1860a) indicated the gathering Spruce 2618 in the prologue of A. desmanthum but did not cite in which herbarium the type would be deposited. Thus, we selected the most complete specimen from this collection as the lectotype of A. desmanthum (K barcode K000587698) (ICN article 9.3; Turland et al. 2018). Furthermore, the sheet chosen belongs to the herbarium where Bentham worked.