Pancheria alaternoides Brongn. & Gris var. angustifolia Guillaumin

Hopkins, Fortune & Bradford, Jason C., 2009, Nomenclature and typification of names in the endemic genus Pancheria (Cunoniaceae) from New Caledonia, Adansonia (3) 31 (1), pp. 103-135 : 126

2. Pancheria alaternoides Brongn. & Gris var. angustifolia Guillaumin

Mémoires du Muséum national d’Histoire naturelle, sér. B, botanique 15: 45 (1964), nom. inval., no indication of type. — Specimens cited (details abbreviated): Col de Plum , Baumann 5536 p.p., Guillaumin & Baumann 7881; Mt Dore, Guillaumin & Baumann 7870; Pouéta-Kouré, Hurlimann 24, Baumann 5570 [sic; should be 5750?]; Creek Pernod, Guillaumin 8344 .

REMARKS

Guillaumin (1964) published the name of this variety with a description in Latin and mention of six collections, but since he did not designate in print that any of them was a type, the name was not validly published.

The specimens listed by Guillaumin (1964) have leaves that are intermediate between those of Pancheria elegans (leaves linear to very narrowly elliptic with teeth usually all round the margin) and P. alaternoides [ var. alaternoides ] (leaves elliptic with teeth usually only around the distal ⅔ of margin). These collections and a few similar ones appear to be hybrids between P. elegans and P. alaternoides , and all are from southern Grande Terre where the putative parents are sympatric. However, the material is neither uniform nor clearly distinct from the likely parents but spans the gap between them, so this variety is not considered worth recognising taxonomically and the name is not validated.

Differences in leaf shape between some of the specimens referred to by Guillaumin as “ P. alaternoides var. angustifolia ” and P.lanceolata are discussed under the latter.