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This species is accepted, and its native range is Papua New Guinea.

[KBu]

Coode, M.J.E. (2019). Elaeocarpus for Flora Malesiana: five new taxa. Kew Bulletin 74: 36. https://doi.org/10.1007/s12225-019-9824-3

Ecology
Hill forest.
Morphology General Habit
Trees 4 – 7.5 m high
Morphology Leaves
Leaves spirally arranged, loosely grouped towards twig tips; petioles 0.6 – 1 cm long, 0.7 – 1 mm wide, glabrous or with sparse, short, straight, adpressed hairs, usually not verrucose, a few crystal blisters may be present in younger leaves, flat to shallowly grooved above and slightly flanged towards apex, apex merging into decurrent leaf-base, somewhat swollen, geniculate and without pegs at apex, base somewhat swollen or geniculate; blades chartaceous, mostly narrow-elliptic, sometimes obovate-elliptic, 2.5 – 4.2 × as long as wide, 3.5 – 6 × 1 – 2.2 cm, acuminate with the acumen tip rounded, narrowly acute to acute at apex (30 – 70°), narrowly cuneate at base, dull above, very young leaves glossy-silky, glabrous beneath when mature or with sparse, short to medium-length, straight, adpressed hairs, often verrucose when young, with 9 – 11 pairs of rather faint main veins at 30 – 50° to midrib, fine venation network obscure or sometimes raised above, about as strong as main veins, areoles rectangular, midrib prominent beneath, main veins scarcely prominent beneath and breaking up 3/43/4 – 7/87/8 inside margin, sometimes a few pocket domatia present, without minute dark dots beneath, margins evenly crenate-serrate, less serrated in lower half, teeth 1.5 – 5 mm apart in distal half
Morphology Leaves Stipules
Stipules caducous, narrow, tapering, fairly thick, hairy like buds outside, glabrous inside, 1 – 2 mm long, entire
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens c. 30
Morphology Reproductive morphology Flowers Calyx
Sepals medium to dense-hairy outside in young bud
Morphology Reproductive morphology Flowers Corolla
Petals rounded at apex, with 7 – 12 apical divisions probably unequal in length and grouped into lobes, divisions triangular, rounded at tip, not swollen and incurved at tip, petals densely pilose outside in lower half or two-thirds, glabrous inside
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovaries mostly 2-locular, inferred from number of sutures in fruit; ovule number unknown
Morphology Reproductive morphology Flowers Pedicel
Pedicels 8 – 10 mm long in fruit
Morphology Reproductive morphology Fruits
Fruits ellipsoid, 7 – 9 mm long, terete, rounded to obtuse at apex, rounded at base, glabrous or virtually so; mesocarp up to 2 mm thick; stone ovoid to ellipsoid, 0.6 – 0.8 cm long, with weak thin fibres, the fibres all over but not obscuring the stone surface, sutures obscure throughout, without longitudinal ridges, crests or wings, surface rugose, without arches, not flattened at midpoint but sometimes flattened towards apex, wall < 2 mm thick, fertile loculus 1, central, roughly circular; seed 1 at most; embryo curved and narrow, probably entire.
Morphology Reproductive morphology Inflorescences
Racemes among current leaves, 2 – 7 cm long, axis 0.8 mm thick at about halfway and with medium-dense, short, straight, adpressed hairs, 6 – 11-flowered; flowers bisexual, 4-merous; lowermost bracts narrower, the rest obovate boat-shaped, hairy like axes, 2 – 3 mm long, some entire, some with 1 pair? of teeth or hairpoints; bracteoles absent; pedicels slender; buds probably ovoid, but only very young ones seen, obtuse to acute at apex
Morphology Twigs
Twigs 0.8 – 1.5 mm thick on current growth, hairy at tip or sometimes persistently hairy with medium-dense, short, straight, ± adpressed hairs, terminal buds not gummy-resinous, golden adpressed-sericeous
Note
A species of unknown affinity, somewhat resembling Elaeocarpus habbemensis A.C.Sm. in habit but with young growth hairy (not glabrous), leaves 2.5 – 4.5 × as long as wide (not 1.7 – 2.4 ×), acuminate (not lacking an acumen), narrowly acute to acute at apex (not obtuse to rounded), leaf nerves 9 – 11 on each side (not 4 – 6); flowers 4-merous (not 5-merous). Known only from these two Papuan Islands (but not yet the largest, Tagula I. — to be expected there?). Rather similar to Elaeocarpus elliffii B.Hyland & Coode from Queensland in habit but lacks the obvious rumination of the endosperm that E. elliffii has, and has 4-merous, not 5-merous, flowers. Also similar in appearance to E. acronodia Mast. subsp. sundarum Coode, from the Lesser Sunda Islands and of the Acronodia group, which differs in having only 8 stamens (Coode 1996: 278). Henty noted that the leaves die red, while Katik noted that the fruit turns blue when ripe, both features in common with many other species of Elaeocarpus.
Type
Papua New Guinea, Milne Bay Prov., Rossel I., Kwa Mt above Abilete, 11°20'S 154°10'E, 600 m, buds 6 Nov. 1965, Henty NGF 27072 (holotypus K! (K001328009); isotypi CANB! L?, LAE!).

Native to:

New Guinea

Elaeocarpus rosselensis Coode appears in other Kew resources:

First published in Kew Bull. 74(3)-36: 5 (2019)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Bulletin

  • Coode, M. J. E. (1978). A conspectus of Elaeocarpaceae in Papuasia. Brunonia 1(2): 131 – 302.
  • Coode, M. J. E. (1985). Aristotelia and Vallea, closely related in Elaeocarpaceae. Kew Bull. 40: 479 – 507.
  • Coode, M. J. E. (1996). Elaeocarpus for Flora Malesiana — notes, new taxa and combinations in the Acronodia group. Kew Bull. 51: 267 – 300.
  • Coode, M. J. E. (2001a). Elaeocarpus for Flora Malesiana — the E. stipularis complex, E. nitidus group & E. barbulatus. Kew Bull. 56: 513 – 565.
  • Coode, M. J. E. (2001b). Elaeocarpus for Flora Malesiana: the Coilopetalum group in Sulawesi & Maluku. Kew Bull. 56: 837 – 874.
  • Coode, M. J. E. (2005). Elaeocarpus for Flora Malesiana: E. crenulatus, E. myrtoides & E. amabilis from New Guinea, reconsidered. Kew Bull. 60: 305 – 311.
  • Coode, M. J. E. (2010). Elaeocarpus for Flora Malesiana: new taxa and understanding in the Ganitrus group. Kew Bull. 65: 355 – 399.
  • Coode, M. J. E. (2019). Elaeocarpus for Flora Malesiana: the Oreocarpus group in Malesia. Kew Bull. 74 (3).  https://doi.org/10.1007/S12225-019-9818-1.
  • Mandia, E. H. (1998). The Vegetation on the Northeastern Summit Zone of Mt. Halcon, Mindoro Island, Philippines [PhD dissertation]. University of the Philippines Los Banos, College, Laguna, Philippines: (Available at UPLB and DLSU-Manila Libraries).
  • Mandia, E. H. (2004). Gradient analysis of the plant communities on Mt. Halcon summit zone, Mindoro Island, Philippines. Philipp. Scientist 41: 91 – 116.
  • Schlechter, R. (1916). Die Elaeocarpaceen Papuasiens. Bot. Jahrb. Syst. 54: 92 – 155.
  • Smith, A. C. (1944). Studies of Papuasian plants VI. Elaeocarpus L. J. Arnold Arbor. 25: 222 – 270.

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0