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Lorentzianthus R. M. King & H. Rob., Phytologia 32(3): 273 (1975).

Type: Eupatorium viscidum Hook. & Arn. = Lorentzianthus viscidus (Hook. & Arn.) R. M. King & H. Rob.

Reference

King, R. M. & H. Robinson (1975). Studies in the Eupatorieae (Asteraceae). CLIII. A new genus, Lorentzianthus. Phytologia 32(3): 273274.

Lorentzianthus viscidus (Hook. & Arn.) R. M. King & H. Rob., Phytologia 32(3): 274 (1975).

Eupatorium viscidum Hook. & Arn., Companion Bot. Mag. 1(No. 8): 241 (1836). Type: El Aquadita, province of San Luis, Dr. Gillies. Holotype: K.

Eupatorium nemorense Sch.Bip., Bull. Soc. Bot. France 12: 81 (1865); Linnaea 34(5): 535 (Feb. 1866), nom. nud. based on Mandon 253.

Eupatorium nemorense Sch.Bip. ex Baker in Mart., Fl. Bras. 6(2): 304 (1876), nom. nud., based on Mandon 253.

*Eupatorium santacruzense Hieron., Bot. Jahrb. Syst. 22(45): 762 (1897). Type: Bolivien: in den Gebirgen von Santa Cruz bei 2000 m ber Meer (O. Kuntze, Mai 1892). Holotype: B.

Argentina, Bolivia (Santa Cruz).

King & Robinson (1987: 522) listed E. nemorense Sch.Bip. ex Baker as a synonym of Heterocondylus alatus. However, Bakers nom. nud. was based on Mandon 253 and unless this was a widely mixed collection King & Robinsons citation is incorrect. Similarly, King & Robinson (1987) cited Eupatorium erythrolepis Sch.Bip., Linnaea 34(5): 535 (Feb. 1866), Bull. Soc. Bot. France 12: 82 (1865), nom. nud., based on Mandon 261, as a synonym of Lorentzianthus viscidus, although the material in K is clearly of Praxelis conocliniantha.