PNGTreesKey – Maniltoa psilogyne Harms


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

Maniltoa psilogyne Harms

Botanische Jahrbucher für Systematik, Pflanzengeschichte und Pflanzengeographie Vol. 55: 50 (1917)

Family: Fabaceae

Timber Group: Occasional timber species

Field Characters: Small sub-canopy tree (up to 24 m high); Bole cylindrical (sometimes slightly fluted, 15-36 cm diam.); often crooked or straight (bole 6-10 m long); buttresses slightly buttresses present or buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark grey, slightly rough or smooth, pustular (finely (when slightly rough), lenticels elongated laterally; Subrhytidome (under-bark) red; less than 25 mm thick, 10.0-12.0; bark blaze consisting of one layer; faintly to non-aromatic; outer blaze red or reddish brown, markings absent; inner blaze red or reddish brown, markings absent; terminal buds not enclosed by leaves.

Indumentum: Complex hairs absent; stinging hairs absent.

Leaves: Leaves spaced along branches, spiral (leaves occurring singly at a node and arranged spirally up 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) (3 pairs of leaflets); petiolule not swollen; rachis present, absent, absent; leaves without a terminal leaflet (the number of leaflets even - paripinnate), broadest above middle, broadest at or near middle, or broadest below middle, 3.0-10.0 (-16.0) cm, 1.0-4.5 (-7.3) cm, leaflets opposite, asymmetric; venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface pale green, upper surface dark green; absent; domatia absent; stipules present, free, laterally placed, not encircling the twig, leafy, not fringed, small, not persistent (almost immediately).

Flowers: Inflorescence axillary, flowers on an unbranched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 6.0-12.0 mm long, diameter small (up to10 mm diam.) (5-8 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth white; 5, free; stamens 20 (c.), present, at base joined, free of the perianth; ovary superior, carpels joined (when more than one), locules 1; styles solitary, 1.

Fruits: Infrutescence arranged on unbranched axis, fruit 25.0 (c.) mm long, brown, not spiny, simple, dehiscent, legume; seeds 1, much more than 10 mm long, not winged, broad (as wide as long), seed more than 10 mm diam.

Distribution: West Sepik, East Sepik, Madang, Morobe, Central, Northern & Milne Bay.

Maniltoa psilogyne
Botanical records
in PNGplants database

Map details

Notes: Notes This species is classified in Fabaceae subfamily Caesalpinoideae.