Contributions to the Flora of Tropical America: XVII. The Genus Strychnos in British Guiana and Trinidad

Clarifying the nomenclature of Strychnos bredemeyeri and Lasiostoma (Loganiaceae)

“…(BR barcode BR0000005859795 ; GH, sheet without barcode or access number and not available online) without date, locality or collection number, and with label and handwriting that clearly differs from all other specimens. This material was cited as additional material examined and not type collection by Progel (1868 : 275) and Sandwith (1933 : 397), a position that we also share. Finally, the specimens BR0000005859795 and W0078192 also have the designation “ Strychnos schomburgkiana Klotzsch” ( Schomburgk 1848b : 1144), which is a nomen nudum ( Turland et al 2018 : Art.…”

“…1B ) was probably proposed by Willdenow, but the epithet ‘ glabrum ’ was deliberately altered by Schultes and Schultes (1827 : 64) to ‘ bredemeyeri ’ because a glabrous corolla throat was not diagnostic of the species based on the pilose inner surface of the corolla in Bredemeyer’s specimen. The etymology of Lasiostoma is about the hairy, woolly (lasio- from Greek) mouth (-stoma from Greek), probably referring to the characteristic whitish-woolly inner surface of the corolla tube of S. guianensis that extends from the near base to the lower half of the corolla lobes ( Sandwith 1933 : 400; Krukoff 1972 : 236). Schultes and Schultes (1827 : 64) perhaps changed the epithet ‘ glabrum ’ to ‘ bredemeyeri ’ to avoid a contradictory combination such as “ Lasiostoma glabrum ”, however, the contradictory diagnosis was kept the same (glabrous corolla throat).…”

“…3 ). This number led to different citations of the type material of R. pedunculatum by different authors: “ R.H. Schomburgk 482 and 792B ” ( Bentham 1857 : 105; Progel 1868 : 275), “ R.H. Schomburgk 482=792B ” ( Sandwith 1933 : 397, 1935 : t. 3225), and “ R.H. Schomburgk 482 and M.R. Schomburgk 792B ” ( Krukoff and Monachino 1942 : 291).…”

“…Therefore, Krukoff and Barneby (1969b) designated Bredemeyer’s specimen at W as the lectotype of Lasiostoma bredemeyeri , citing S. bredemeyeri as the accepted name with priority of use, and placing S. pedunculata and S. trinitensis Griseb. (an old synonym of S. pedunculata ; Sandwith 1933 : 397) in its synonymy.…”

Figure 2 from: Setubal RB, Struwe L, Prado J, Forzza RC (2024) Clarifying the nomenclature of Strychnos bredemeyeri and Lasiostoma (Loganiaceae). PhytoKeys 243: 137-148. https://doi.org/10.3897/phytokeys.243.123921

“…3). This number led to different citations of the type material of R. pedunculatum by different authors: "R.H. Schomburgk 482 and 792B" (Bentham 1857: 105;Progel 1868: 275), "R.H. Schomburgk 482=792B" (Sandwith 1933(Sandwith : 397, 1935), and "R.H. Schomburgk 482 and M.R. Schomburgk 792B" (Krukoff and Monachino 1942: 291).…”