PNGTreesKey – Caldcluvia nymanii (K.Schum.) Hoogland


Barry Conn (NSW) & Kipiro Damas (LAE).
Guide to trees of Papua New Guinea
Copyright held by the authors, National Herbarium of New South Wales, and Papua New Guinea National Herbarium

Caldcluvia nymanii (K.Schum.) Hoogland

Blumea Vol. 25 (2): 486-487 (1979)

Family: Cunoniaceae

Timber Group: Commercial hardwood

Field Characters: Large canopy tree (up to 45 m high); Bole cylindrical (up to 100 cm diam.) or sometimes markedly fluted; crooked (bole 17-35 m long); buttresses buttresses present; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark brown, rough, pustular, lenticels irregular; Subrhytidome (under-bark) brown; less than 25 mm thick, 10.0; bark blaze consisting of one layer; faintly to non-aromatic; pleasant; outer blaze pink or rarely red, markings absent, fibrous; inner blaze pink or rarely red, markings absent, fibrous; bark exudate (sap) absent; terminal buds not enclosed by leaves.

Indumentum: Complex hairs absent; stinging hairs absent; mature twig indumentum (hairs) absent.

Leaves: Leaves clustered at end of branches, opposite (in pairs, opposite one another on the branchlet), compound (a leaf made up from two or more leaflets); petiole present, not winged, attached to base of leaf blade, not swollen; leaves pinnate (unbranched with more than three leaflets); petiolule swollen; rachis present, absent, absent; leaves with a terminal leaflet (the number of leaflets odd - imparipinnate), broadest above middle (slightly (leaflets with margin serrately toothed) or broadest at or near middle, 4.0-9.0 cm, (1.5-) 2.5-4.5 cm, leaflets opposite, symmetric, terminal developing leaflet buds straight; venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface pale green, upper surface green, indumentum (hairs) absent; absent; domatia present, scattered along midrib; stipules present, joined, joined across twigs, not encircling the twig, leafy, not fringed (densely hairy), large (2-2.5 mm long), not persistent.

Flowers: Inflorescence terminal or axillary (in distil axils), flowers on a branched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 3.0-4.5 mm long, diameter small (up to10 mm diam.) (4-5 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth white, red, or cream-coloured; 5, free; stamens 10, present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one), locules 2; styles free, 2.

Fruits: Infrutescence arranged on branched axis, fruit 5.0-7.0 mm long, brown, not spiny, non-fleshy, simple, dehiscent, capsule; seeds 40 (c.), to about 5 mm long (2-2.5 mm long), winged, narrow (longer than wide), seed less than 1 mm diam. (c. 0.5 mm diam.).

Distribution: West Sepik, East Sepik, Madang, Morobe, Western Highlands, Eastern Highlands, Southern Highlands, Western, Gulf, Central, Northern, Milne Bay & New Britain.

Caldcluvia nymanii
Botanical records
in PNGplants database

Map details