Knema curtisii Warb.

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Shrub or tree 2-10(-35) m. Twigs sometimes faintly 2-or 3-angled, (0.5-)l-2 mm in diameter, yellow to brownish, at first with indumentum composed of greyish hairs 0.1 mm long or less, early glabrescent; bark finely striate, not cracking nor flaking. Leaves membranous or chartaceous, of variable shapes, elliptic, obovate, or ovate to lanceolate, 3.5-15(-20) by 1.2-4(-6.5) cm., base cuneate to attenuate, rarely ± rounded, apex acute (-acuminate), sometimes blunt or rounded; greenish or dark brown above; on lower surface greyish, very finely papillate, at first with dense hairs 0.1 mm long, early glabrescent; dots absent; midrib raised above, nerves (6-)8-14(-20) pairs, flat to slightly raised above; venation (very) fine, distinct above or not; petiole 5-20 by 0.7-1.5 mm. Inflorescences: peduncle up to 1 mm, brachyblast simple or forked, up to 5 mm long, in male (2-)5-15-flowered, in female l-3(-5)-flowered; flowers with persistent or partially caducous grey-brown or rusty hairs 0.1-0.3 mm long, perianth 3-(or 4-)lobed, cream to pink inside. Male flowers: pedicel 5-11 mm long, bracteole subpersistent, median, or considerably below or above; buds subglobose or broadly obovoid, apex often depressed, in cross section circular, obtusely or sharply angled (see the note under the type variety), 2.5-5 (-5.5) mm in diameter, cleft 2/3-4/5, lobes 0.5 (-0.8) mm thick; staminal disc flat, slightly concave, or with a small minute mammilla, subtriangular, 1.7-3 mm in diameter; anthers 9-25(-30) (i.e., with 18-50 thecae), completely sessile, 0.2-0.4 mm, closely ap-pressed, erect or horizontal, hidden under the rim of the staminal disc or partially emergent; androphore slender or broad and tapering, 1-2 mm long. Female flowers: pedicel 5-10 mm long, bracteole about the middle; buds ellipsoid to obovoid or subglobose, 4-5 by 2.5-4 mm, cleft 1/2-2/3, lobes 0.7-1 mm thick; ovary ovoid, 1.5-3 mm long; style up to 0.5 mm long, stigma 6-8-lobulate, i.e., 2-lobed and each lobe again 3-4(-5)-lobulate. Fruits 1 or 2 per infructescence, ± ellipsoid, ridged, apex acute, base obtuse, or often up to 5 mm narrowed (beaked) at both ends, 2-5 by 1.5-3 cm, with greyish to rusty hairs 0.1-0.2 mm long, or glabrescent; dry pericarp 1-2.5 mm thick; fruiting pedicel 8-16 mm long.
Life form -
Growth form tree
Growth support -
Foliage retention evergreen
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.0 - 10.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

Uses fuel material medicinal
Edible -
Therapeutic use Poison (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Knema curtisii world distribution map, present in Brunei Darussalam, Indonesia, Malaysia, and Thailand

Conservation status

Knema curtisii threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:585853-1
WFO ID wfo-0000356960
COL ID 6NLX9
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Myristica curtisii Knema curtisii