PNGTreesKey – Caldcluvia rufa (Schltr.) 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 rufa (Schltr.) Hoogland

Blumea Vol. 25 (2): 489-490 (1979)

Other Literature: P. van Royen, The Alpine Flora of New Guinea 2 535-2 538 (1983) Fig. 738.

Family: Cunoniaceae

Timber Group: Non-timber species

Field Characters: Large canopy tree (up to 30 m high) or Small sub-canopy tree (up to 20 m high); Bole cylindrical (up to 120 cm diam.); straight (bole 4-10 m long); buttresses buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark cream-coloured, slightly rough, pustular; Subrhytidome (under-bark) green (olive-coloured); bark blaze consisting of one layer; faintly to non-aromatic; outer blaze white or orange, markings absent; inner blaze white or orange, markings absent; terminal buds not enclosed by leaves.

Indumentum: Complex hairs absent; stinging hairs absent; mature twig indumentum (hairs) present (with reddish hairs), hairs dense.

Leaves: Leaves spaced along 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 with three leaflets (trifoliate) or pinnate (unbranched with more than three leaflets); petiolule not swollen; rachis present, absent, absent; leaves with a terminal leaflet (the number of leaflets odd - imparipinnate), broadest at or near middle, 15.0-17.0 cm, 9.0 (c.) cm, leaflets opposite, symmetric; venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface pale green, upper surface dark green (glossy), indumentum (hairs) absent (with reddish hairs) or present, indumentum (hairs) dense; absent; domatia absent; stipules present, free, laterally placed, not encircling the twig, leafy, not fringed, large, persistent.

Flowers: Inflorescence axillary, flowers on a branched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry; perianth present, with distinct sepals and petals whorls, inner perianth white, pink, or brown; 5, free; stamens 10, present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one), locules 2; styles solitary, 1.

Fruits: Infrutescence arranged on branched axis, fruit 4.0-5.0 mm long, red, 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: Morobe, Western Highlands, Eastern Highlands, Southern Highlands & Northern.

Caldcluvia rufa
Botanical records
in PNGplants database

Map details