Cnidoscolus quercifolius Pohl, Pl. Bras. Icon. Descr.

Maya-Lastra, Carlos A. & Steinmann, Victor W., 2018, A Nomenclator of Cnidoscolus (Euphorbiaceae), Phytotaxa 346 (1), pp. 1-30 : 16-17

71. Cnidoscolus quercifolius Pohl, Pl. Bras. Icon. Descr. 1: 62 (1827).— Jatropha phyllacantha nom . superfl. var. quercifolia (Pohl) Müll.Arg. in DC., Prodr. 15(2): 1098 (1866). Type:— BRAZIL. Bahia: habitat in aridis graniticis inter Villam de Caxoiera et Villa Jacobina, March–April 1819, C.F.P. von Martius s.n. (holotype M-0233236!).

Cnidoscolus lobatus Pohl, Pl. Bras. Icon. Descr. 1: 62 (1827).— Jatropha phyllacantha var. lobata (Pohl) Müll.Arg. in DC., Prodr. 15(2): 1098 (1866). Type:— BRAZIL. Bahia / Minas Gerais: habitat in sylvis a Rio S. Francisco ad Sincora, September–November 1818, C.F.P. von Martius Obs. 1858 (holotype M-0233233!).

Cnidoscolus repandus Pohl, Pl. Bras. Icon. Descr. 1: 62 (1827).— Jatropha phyllacantha var. repanda (Pohl) Müll.Arg. in DC., Prodr. 15(2): 1098 (1866). Type:— BRAZIL. Bahia: habitat in desertis, without precise locality, April 1819, C.F.P. von Martius s.n. (holotype M-0233238!).

Jatropha phyllacantha Müll.Arg. in DC., Prodr. 15(2): 1098 (1866), nom. illeg. superfl.— Cnidoscolus phyllacanthus (Müll.Arg.) Pax & K.Hoffm., Nat. Pflanzenfam. ed. 2, 19c: 165 (1931), nom. illeg. superfl.— Cnidoscolus phyllacanthus (Müll.Arg.) Pax & K.Hoffm. ex Fern.Casas, Fontqueria 55: 72 (2002), comb. superfl. (see notes under C. acrandrus for justification).

Distribution:— Brazil.

Notes:— Pohl (1827) simultaneously described Cnidoscolus lobatus , C. quercifolius , and C. repandus based on Martius collections that were annotated in the herbarium as Janipha phyllacantha . His mere mention of Martius’ binomial Janipha phyllacantha by no means constitutes the valid publication of the name. Nearly 40 years later Müller (1866) proposed Jatropha phyllacantha Müll.Arg. and treated Pohl’s species as varieties. Thus, J. phyllacantha is an illegitimate superfluous name, and despite being accepted by various authors, it has no nomenclatural standing. Cnidoscolus quercifolius , C. repandus , and C. lobatus all have equal priority. McVaugh (1944) chose C. quercifolius as accepted name for the taxon, thus relegating both C. repandus and C. lobatus into synonymy.