Syzygium baudouinii (Brongn. & Gris) N. Snow, Byng & J.W. Dawson

Snow, Neil, Byng, James W., Munzinger, Jérôme, Callmander, Martin W. & Dawson, John W., 2017, New Caledonian Piliocalyx transferred to Syzygium (Myrtaceae) with an updated conspectus of the species, Candollea 72 (2), pp. 239-248 : 241

Syzygium baudouinii (Brongn. & Gris) N. Snow, Byng & J.W. Dawson , comb. nov. ( Fig. 1 A-B).

Ξ Piliocalyx baudouinii Brongn. & Gris in Bull. Soc. Bot. France 12: 186. 1865.

Lectotypus (designated here): NEW CALEDONIA. Prov. Sud: sine loc., Baudouin 288 ( P [ P05265340 ]!; isolecto-: P [ P05265339 ]!) .

Shrubs or trees, 1- 12 m. Bark unknown. Branchlets terete or narrowly 4-winged (e.g., Veillon 2255), reddish to greenish. Leaves sessile or subsessile. Leaf blades c. 1.5-4 cm, ovate, base cordate and clasping, margin smooth to somewhat undulate, apex broadly acute to rounded. Inflorescences terminal, 12-28 × 15-20 mm, of simple or compound cymes, axes terete, green to yellow-green. Hypanthium c. 2 × 2.5 mm, infundibular to cupuliform, pinkish; perianth calyptrate with a short, blunt umbo, whitish-pink. Fruits c. 1.5 × 1.5-2.5 cm, subglobular to globular, whitish, cream-colored or reportedly sometimes reddish.

Notes. ‒ This relatively common species most closely resembles S. jaffrei J.W. Dawson , but the latter has strongly angular branchlets and more acute to acuminate leaf apices ( DAWSON, 1999: 111-113). The leaves of S. capillaceum (Brongn. & Gris) J.W. Dawson are similar as well, but are longer (3.5-6.5 cm) and not clasping at the base ( DAWSON, 1999: 121-123).

The protologue mentions only “Habitat in Nova Caledonia ad ripas rivorum circa Port-de-France [= Nouméa] (Baudouin, 1865)”, with no specimens cited. It probably is not possible to know with certainty what constitutes the entirety of original material on which the description was based, but the lectotype and isolectotype assuredly were a part of that material and of the same gathering, based on the labels.

Additional specimens examined. ‒ NEW CALEDONIA. Prov. Nord: Col d’Amos , 300 m, 9.VI.1956, Mackee 4735 ( K [ K000771864 ], P [ P05265320 ]) . Prov. Sud: NE du Mt Mou , 31.XII.1869, Balansa 2100 ( P [ P05265346 , P05265347 ]) ; Dumbéa, Baudouin 179 ( P [ P05265338 , P05265343 ]) ; ibid. loc., 16.V.1951, Baumann-Bodenheim 13337 ( L [ L.3927702 , L.4147734] , P [ P05265334 ], [ Z-000056166 ]) ; ibid. loc., 7.VIII.1882, Brousmiche 672 ( P [ P05265329 ]) ; Yaté river at Yaté , 14.XII.1947, Buchholz 1501 ( P [ P05265325 ]) ; Nondoué , XI.1906, Franc 626A ( K [ K000771862 ], P [ P05265344 ]) ; à Prony , 20.I.1911, Franc 1939 ( G [2 sheets], K [ K000771861 ], P [ P05265345 ], Z [ Z-000056168 , Z-000056169 ]) ; Pente W des Mt Kouanémoa , 1.II.1951, Hürlimann 823 ( P [ P05265332 ], Z [ Z-000056167 ]) ; Vallée de Nondoué , 20.IV.1951, Hurlimann 1433 ( P [ P05265333 ], Z [ Z-000056165 ]) ; La Ouaménie, creek du Mt Do ( propr. Caillard ), 12.VI.1974, Jaffré 1321 ( NOU [ NOU013786 ], P [ P05265313 , P05265316 ]) ; bord de la Nondoué , VI.1901, Le Rat & Le Rat 238 ( B, P [ P05265348 ]) ; Nondoué , 21.II.1920, Le Rat & Le Rat 1054 ( P [ P05265324 , P05265328 ]) ; Bord de la Nondoué , IV.1905, Le Rat & Le Rat 2567 ( L [ L.2518675 ], P [ P05265342 ]) ; Dumbéa, Nondoué, Val fleuri , 2.VII.1955, MacKee 2679 ( L [ L.2518673 ], P [ P05265322 ]) ; forest ridge leading from Chapeau Gendarme to Koghi , 600-700 m, 22.IX.1956, MacKee 5299 ( K [ K000771865 ]) ; Mamié , 21.VII.1981, MacKee 39306 ( P [ P05265242 ]) ; Kuébini , 14.III.1982, MacKee 40265 ( NOU [ NOU032427 ], P [ P05265215 ]) ; Yaté, route cotière vers Touaourou , 2.VII.2004, Munzinger & Dagostini 2167 ( NOU [ NOU003632 ]; P [ P06669063 ]) ; Col de Mo , 22.VIII.2004, Munzinger et al. 2322 ( NOU [ NOU003560 ], P [ P06669071 ]) ; sine. loc. Pancher 45A ( P [ P05265343 ]) ; Dumbéa , VIII.1949, Sarlin 176 ( P [ P05265326 ]) ; Touaourou , 21.IX.1969, Schmid 2988 ( P [ P05265235 ]) ; Zone tribale de Yaté , 20.IX.1978, Suprin 427 ( NOU [ NOU009176 ], P [ P06669073 ]) ; La Dumbéa, 26.VIII.1966, Veillon 870 ( NOU [ NOU013799 ]) ; P [ P04807655 ] ); face W du Mt Do , 12.VIII.1968, Veillon 1888 ( NOU [ NOU013781 ], P [ P05265323 ]) ; région de Touaourou , IV.1971, Veillon 2255 ( MO-6450567 , NOU [ NOU013798 ], P [ P00966387 ]) ; berges de la Ouenghi , propriété Caillard , 28.XI.1970, Veillon 2486 ( NOU [ NOU013797 ]; P [ P00966388 ]) ; M’bée , 1855-60, Vieillard 475 ( P [ P05265335 , P05265336 , P05265337 , P05265341 ]) ; bords de la Nondué , 5.XI.1939, Virot 237 ( P [ P05265318 , P05265327 ]) ; ibid. loc., 27.XI.1942, Virot 886 ( MO-6452861 ; P [ P05265319 , P01061000 ]) ; c. Yaté, baie de Yaté , 18.VIII.1968, Webster & Hildreth 14860 ( P [ P04807652 ]) ; base of Mt Mou , 6.X.1923, White 2074 ( A, K [ K000771866 ]) .

Figures

Fig. 1. – Living Syzygium P. Browne ex Gaertn. A-B. Syzygium baudounii (Brongn. & Gris) N. Snow,Byng & J.W. Dawson; C. Syzygium francii (Guillaumin) N. Snow, Byng & Munzinger; D. Syzygium ignambiense (Baker f.) N. Snow & Byng; E. Syzygium neoeugenioides N. Snow & Byng; F. Syzygium neolaurifolium N. Snow & Byng.