Syzygium carrii T.G.Hartley & L.M.Perry

Craven, L. A., 2019, Studies in Papuasian Syzygium (Myrtaceae): 1. Subgenus Perikion revised, Blumea 64 (2), pp. 115-122 : 117-118

3. Syzygium carrii T.G.Hartley & L.M.Perry — Fig. 1 ; Map 1

Syzygium carrii T.G.Hartley & L.M.Perry (1973) 209. — Type: Carr 13511 (holo A n.v.; iso CANB,LAE), Papua New Guinea, Central Province, Boridi, forest, c. 1525 m, 25 Nov. 1935.

Tree to c. 30 m tall. Vegetative branchlet quadrangular, winged, 0.7–1 mm diam; bark dull, smooth, slightly glandular-verrucose, persistent. Leaf lamina 1.5–2.8 by 0.7–1.7 cm, 1.9–2.1 times as long as wide, elliptic or obovate; base cuneate; apex acute or obtuse; margin revolute; coriaceous; primary and secondary venation distinctly different with secondaries relatively little developed and not or rarely joining the intramarginal vein (few secondary veins are present); primary veins 8–10 on each side of the mid-rib; in median part of the lamina at a divergence angle of 60–70° and 1–3 mm apart; intramarginal vein present, weakly arched, 0.5–1 mm from margin, secondary intramarginal vein absent. Petiole 0.7–1 mm long. Reproductive seasonal growth unit with a reproductive zone only. Inflorescence terminal to median axillary; 1- to few-flowered, racemose or paniculate, up to 1–2 by 0.2–0.7 cm wide, major axis 0.3–0.5 mm thick at the midpoint; bracts caducous or deciduous; bracteoles subtending each flower; deciduous. Flowers possibly calyptrate (petals coherent and probably falling as a cap). Hypanthium dull, glandular-verrucose, visibly gland-dotted; stipitate; stipitately very narrowly obconic or elongated goblet-shaped; 8 by 2 mm; stipe 2 mm long. Calyx lobes 4; transversely narrowly semielliptic, c. 0.5 mm long. Placentation axile-median. Ovules c. 10 per locule, pendulous, arranged in two longitudinal rows (one row on each placental lobe). Staminal disc and fruit not seen (see note).

Distribution — Papua New Guinea.

Habitat & Ecology — Forest. Altitude 1520 m.

Note — This species is known only from one collection in late bud. The buds are not in good condition with some tissue breakdown evident, making observation difficult for determining some characters.

Figures

Map 1 Distribution of Syzygium attenuatum (Miq.) Merr. & L.M.Perry (●), S. bicolor Merr. & L.M.Perry (■) and S. carrii T.G.Hartley & L.M.Perry (▲).

Fig. 1 Diagrams of staminal disc types occurring in Syzygium subg. Perikion species, showing staminal discs that are flat (1.1–1.10), descending (2.5), ascending (3.2) and raised (4.2). Within the flat staminal disc type, structure may differ in the degree of ‘lip’ projection at the inner edge of hypanthium apex (1.4, 1.5, 1.6 and 1.9) and the presence of a grooved petal insertion point (1.10).