Erythroxylum, P. Browne

Pillon, Yohan, 2023, Taxonomic notes on New Caledonian Malpighiales: Acridocarpus, Crossostylis, Erythroxylum, and Xylosma, Phytotaxa 583 (2), pp. 207-212 : 208

ERYTHROXYLUM (ERYTHROXYLACEAE)

Erythroxylum novocaledonicum Schultz (1907: 140) .

Lectotype (designated here):— NEW CALEDONIA, Pum [=Poum], Nené [or Neué ], 1861–1867, Deplanche 275 ( K000700853 !, iso-: P00547149 !, P00547150 !, P05486501 !). Remaining syntypes: Caldwell s.n. ( K000700852 !), Gatope, 1861–1867, Vieillard 2572 ( K000700851 !, P00547147 !, P00547148 !, P05486498 !).

Erythroxylum couveleense Guillaumin (1964: 56) nomen inval.

When he described Erythroxylum novocaledonicum, Shultz (1907) cited three collections, all from the herbarium at K: Caldwell s.n. (without locality), Vieillard 2572 (“Gatop”), and Deplanche 275 (“Pum, Nené”). It is likely that Schultz misinterpreted the handwriting on the label of Deplanche 275, which is more likely to be from “Neué”, corresponding to current day Néhoué, south of Poum. The sheet of Deplanche 275 at K is chosen as the lectotype. A number of specimens labelled Vieillard 2572 (K000700854!, P05486499!, P05486060! P00723580!), with the locality Neué, instead of Gatope (as cited in the protologue), and not annotated by Shultz, are excluded from the types. The name Erythroxylum couveleense Guillaumin (1964: 56) was not validly published according to article 40.1 ( Turland et al. 2018) because Guillaumin (1964) cited two collections, Guillaumin & Baumann 13189 (P00522302!), and Baumann 15303 (P00522301!), but he did not designate either explicitly as the type.