taxonID	type	description	language	source
843B87AF2244F92E84A6FBE252FEA10B.taxon	description	In his description, Schlechter (1907) did not provide a collection number but only a locality “ in den Wäldern der Berge bei Ou Hinna ” and the date of January 1903. His collection number 15694 matches the location and date. There is apparently a single sheet at B that bears the handwritten note “ Polyosma brachystachys Schltr. n. sp. ” (presumably Schlechter’s hand), which is chosen here as a lectotype.	en	Pillon, Yohan (2018): Nomenclature and typification in Polyosma (Escalloniaceae) from New Caledonia, with the description of a new species. Phytotaxa 371 (4): 267-272, DOI: 10.11646/phytotaxa.371.4.4, URL: http://dx.doi.org/10.11646/phytotaxa.371.4.4
843B87AF2244F92E84A6F94D50EDA7FF.taxon	materials_examined	Type: — NEW CALEDONIA. s. loc., s. dat., Pancher & Sebert s. n. (not found) Polyosma podophylla Schlechter (1907: 117). Lectotype (designated here): — NEW CALEDONIA. Auf den Bergen bei Oubatche, 1000 m, 20 December 1902, Schlechter 15515 (B- 100278232!, isolectotypes A- 01154252, B- 100278231!, BR- 699842!, E- 00265564!, FI- 014506!, G- 00388957!, HBG- 517024!, K- 00739769!, L- 0035079!, M- 0242296, P- 00537659!, S- 09 - 11256!) The protologue of P. discolor indicates “ Oritur in Austro-Caledonia, ubi leger. cl. Pancher et Sébert (herb.) ”, but the type specimen of this taxon could not be located at P. There is no reason to believe that it should be located elsewhere since both Pancher and Baillon were affiliated to P. Type material of Polyosma pancheriana, described in the same publication, and also a collection of Pancher, is at P. The specimen may be simply misfiled, particularly after the recent refurbishment of this herbarium, and a neotype will not be designated at this time. The specimen Balansa 1780 (P- 02582518!) bears the handwritten “ est? mon P. discolor de herb. Sebert ”, which suggests that it has been seen by Baillon. In his description of P. podophylla, Schlechter (1907) cited a single collection, N ° 15515. There are apparently two sheets at B, both with “ Polyosma podophylla n. sp. ” handwritten, but with two different inks. One bears the note “ acc. 22. XII. 1903 ” (B- 100278232) and the other “ acc. 13. I. 1908 ” (B- 100278231). The first one, which is also a better specimen, is chosen as a lectotype. I follow Guillaumin (1920, 1939) in treating P. podophylla as identical to P. discolor.	en	Pillon, Yohan (2018): Nomenclature and typification in Polyosma (Escalloniaceae) from New Caledonia, with the description of a new species. Phytotaxa 371 (4): 267-272, DOI: 10.11646/phytotaxa.371.4.4, URL: http://dx.doi.org/10.11646/phytotaxa.371.4.4
843B87AF2244F92E84A6FE115411A41B.taxon	materials_examined	Type: — NEW CALEDONIA. Plateau de Dogny, September 1909, Le Rat 825 (holotype: P- 00537661!, isotypes: K- 000739770!, P- 00537662!, P- 00537663!)	en	Pillon, Yohan (2018): Nomenclature and typification in Polyosma (Escalloniaceae) from New Caledonia, with the description of a new species. Phytotaxa 371 (4): 267-272, DOI: 10.11646/phytotaxa.371.4.4, URL: http://dx.doi.org/10.11646/phytotaxa.371.4.4
843B87AF2244F92E84A6FE115411A41B.taxon	description	In his description of the variety puberula, Guillaumin (1939) cited two collections: Balansa 1783 and Lécard 93, bois n ° 31. Among several collections of Lécard at P, a single sheet bears the additive information “ bois N ° 31 ” with the handwritten ” Polyosma leratii var. puberula ”, “ type ” and Guillaumin’s signature. It is therefore chosen as a lectotype. The variety name was not indicated in any of the sheets Balansa 1783 at P or the single sheet labelled “ Lécard n ° 93 ”. The variety puberula only differs from the typical variety by the pubescence of the inflorescence and this does not seem to correlate with ecology or geography. It is not maintained here as distinct.	en	Pillon, Yohan (2018): Nomenclature and typification in Polyosma (Escalloniaceae) from New Caledonia, with the description of a new species. Phytotaxa 371 (4): 267-272, DOI: 10.11646/phytotaxa.371.4.4, URL: http://dx.doi.org/10.11646/phytotaxa.371.4.4
843B87AF2247F92D84A6FA385274A745.taxon	materials_examined	Type: — NEW CALEDONIA. s. loc., s. dat., Pancher & Sebert s. n. (not found) The protologue indicates “ In Austro-Caledonia leger. cl. Pancher et Sébert (herb.) ”, but the type specimen could not be located in P (see P. discolor).	en	Pillon, Yohan (2018): Nomenclature and typification in Polyosma (Escalloniaceae) from New Caledonia, with the description of a new species. Phytotaxa 371 (4): 267-272, DOI: 10.11646/phytotaxa.371.4.4, URL: http://dx.doi.org/10.11646/phytotaxa.371.4.4
843B87AF2247F92D84A6FA385274A745.taxon	description	In his description, Guillaumin (1920) cited several collections: Sebert, Lecard, Balansa (environs de la Conception) and Le Rat 831 (plateau de Dogny). Four sheets at P bear the handwritten name “ Polyosma pancheriana Baill var subintegrifolia Guillaum ”: Lecard s. n., Sebert s. n., Balansa 602 and Balansa 1030, only the last three have Guillaumin’s signature. The two Balansa collections were made above Conception, and the one sheet of Balansa 1030 with Guillaumin’s handwriting is chosen as a lectotype because it has well developed fruits. Two syntypes are excluded: Lecard s. n. (P- 02582593!), which belongs to P. pancheriana s. s. and Le Rat 831 (P- 02582588!) from “ plateau de Dogny ” (doubtful locality), which belongs to P. brachystachys. This taxon displays a combination of characters of P. leratii (leaf mostly entire, inflorescences many, some inserted low on branches) and P. pancheriana (mostly glabrous, acuminate leaves). A hybrid origin comparable to that of Cunonia × koghicola H. C. Hopkins, J. Bradford & Pillon (in Pillon et al. 2008: 423), which has a similar distribution, may be hypothesized (Hopkins et al. 2014).	en	Pillon, Yohan (2018): Nomenclature and typification in Polyosma (Escalloniaceae) from New Caledonia, with the description of a new species. Phytotaxa 371 (4): 267-272, DOI: 10.11646/phytotaxa.371.4.4, URL: http://dx.doi.org/10.11646/phytotaxa.371.4.4
843B87AF2247F92C84A6FF98515EA6C0.taxon	materials_examined	Type: — NEW CALEDONIA. Kouaoua, Aréha, 500 m, 30 march 1982, McKee (leg. J. - F. Cherrier) 40295 (holotype P- 04377521!). Shrub 2 – 6 m tall, glabrous except on bud, with lenticels on younger wood. Leaves: pseudo-opposite, elliptic with rounded to pointed apex, base triangular, petiole 16 – 45 × 1 – 2 mm, blade coriaceous, bullate, 4.5 – 14 × 2 – 4.8 cm, lower surface glaucous below, margins with fine teeth (<1 mm long) or sinuses; 6 – 13 pairs of secondary veins, convex below, concave above. Young inflorescences with very short shiny hairs, 3.5 – 7.5 cm long, bracts 2 × 0.2 mm. Flowers: pedicel c. 1 mm long; calyx tube c. 1.5 mm long with 4 spreading tips; corolla 2.5 – 3 mm long in bud; buds pinkish (fide McKee 9902), purple (H. Vandrot, pers. comm.) or reddish green (Barrabé 934). Flower at anthesis unkown. Fruits ovoid, 8 × 6 mm, glabrous, smooth, with 2 longitudinal furrows, pyrenes 2 per fruit, 7 × 4 mm. Seeds ellipsoid, 4 × 2 mm.	en	Pillon, Yohan (2018): Nomenclature and typification in Polyosma (Escalloniaceae) from New Caledonia, with the description of a new species. Phytotaxa 371 (4): 267-272, DOI: 10.11646/phytotaxa.371.4.4, URL: http://dx.doi.org/10.11646/phytotaxa.371.4.4
843B87AF2247F92C84A6FF98515EA6C0.taxon	biology_ecology	Ecology and conservation: — Unlike the morphologically similar P. spicata and P. discolor, this species occurs on ultramafic substrates in maquis and mountain forest, at 500 – 1000 m elevation. It is known so far from only 4 localities: Kouaoua (Aréha, Montmartre), Mé Maoya (ridge between Baraoua and Houailou rivers), Boulinda (pic Poya), and Paéoua (H. Vandrot, pers. comm.). They are all located within a 40 km radius. This patchy distribution is quite similar to that of Pancheria ajiearoana H. C. Hopkin, Pillon & Bradford (2009: 442). All populations may be directly affected by nickel mining, particularly the first one. This species will be assessed by the New Caledonia Plant Red List Authority and would likely qualify as Endangered EN B 1 ab (i, ii, iii, iv, v) + 2 ab (i, ii, iii, iv, v) (IUCN 2017). Paratypes: — New Caledonia, Kouaoua: décharge Montmartre, 14 february 1978, Veillon 3504 (P!); Kouaoua, Mine de Méa, décharge Montmartre, 165 ° 45 ’ 52 ’’ E, 21 ° 26 ’ 29 ’’ S, 723 m, 17 august 2009, Barrabé & Nigote 934 (P!, K, NOU, NY, Z, S); Mt Boulinda, près du Pic Poya, 800 m, 7 november 1984, Veillon 5830 (P!); Crête entre la haute Houailou et la haute Baraoua (contrefort du Mé Maoya), 28 december 1962, McKee 9902 (P!). Notes: — the collection McPherson 2933 (P- 04362121!) from Mount Mé Maoya is tentatively assigned to this species. It differs by its leaves that are more strongly toothed and more chartaceous. It could be juvenile foliage although this collection is fertile. The collections from the West (Boulinda & Mé Maoya) look somewhat different from those from the type locality (Kouaoua), with leaves that are smaller, not so strongly bullate and the margin that is sinuate rather than toothed in Veillon 5830. Further observations are needed before deciding whether this taxon should be further divided.	en	Pillon, Yohan (2018): Nomenclature and typification in Polyosma (Escalloniaceae) from New Caledonia, with the description of a new species. Phytotaxa 371 (4): 267-272, DOI: 10.11646/phytotaxa.371.4.4, URL: http://dx.doi.org/10.11646/phytotaxa.371.4.4
