Strychnos madagascariensis Poir.

Hairy-leaved monkey-orange (en)

Species

Angiosperms > Gentianales > Loganiaceae > Strychnos

Characteristics

Leaves: petiole glabrous or pubescent, often short, 1–5 mm. long; lamina shining and dark green above, paler beneath, coriaceous, very variable in shape and size, suborbicular, elliptic, narrowly elliptic, obovate or narrowly obovate, (1)1·5–4(5) times as long as wide, 2–10(15·5) x 1·4(5·5) cm., rounded, or especially in Madagascar and near the coast in Mozambique and Natal and furthermore elsewhere in shade branches acute or acuminate at the apex, cuneate or rounded at the base, glabrous or pubescent on both sides; one or two pairs of distinct secondary veins from or from above the base curved along the margin and often a faint submarginal pair; tertiary venation reticulate, not or slightly prominent above.
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It can be a bush or a tall spineless tree. It can have one or many stems. They can grow to 15 m high. It loses its leaves during the year. The leaves are in opposite pairs. They are 2-9 cm long by 1.3-6 cm wide. They are oblong and narrow to the base. The leaves are thickish. The flowers are small and yellow. They are borne in bunches in the axils of leaves or on old wood. The fruit are large. They can be 4-10 cm across and round. They have a hard woody shell. They are blue-green but become yellow-brown when ripe. There are a large number of flat seeds. These are in a pleasant tasting pulp.
This subspecies is characterised by the trees being up to 8 m tall with a widely spreading canopy, the branchlets being, usually, rather thick, smooth, brown or dark grey, distinctly lenticelled, and bearing short contracted lateral branchlets with congested prominent leaf-scars; the leaves mostly obovate-oblong, suborbicular or oblongelliptic, 2-8 cm long and 1-4.2 cm broad, densely to sparsely pubescent on both surfaces or at least on the veins beneath, rarely glabrous; the inflorescence not pedunculate; and the flowers only about 5 mm long.
Corolla in the mature bud (1·8)2·8–3·3(3·6) times as long as the calyx, (4·5)5–8 mm. long, white or greenish–yellow, glabrous outside, inside with a brush–like ring of white lanate hairs in the throat and just on the base of the lobes; tube cylindrical or nearly so (1)1·2–1·8(2·2) times as long as the calyx, 0·7–1·7 x as long as the lobes, 2·5–4·5(5) mm. long, 1·5–2·8 mm. wide at the throat; lobes thick, narrowly triangular, 1·5–3 times as long as wide, 2–3·6 x 1–1·9 mm., acute or subacute, spreading.
Fruit orange or yellow, nearly mature bluish–green, large or sometimes rather small, hard when not small, globose, 2–8(10) cm. in diam., with about 5–50 seeds, with somewhat granular skin, slightly shining. Wall mostly thick, (1)2–4 mm. thick, thicker above the pedicel, brittle in mature fruits, hard and not broken by hand when nearly mature and/or dry. Pulp orange, slimy, edible.
Pistil hirto–pilose in the middle, (3·5)4–6 mm. long; ovary narrowly ovoid or oblong, 1·5–3 x 0·8–1·5 mm., hirto–pilose at the very apex, further glabrous, often with a disc–like base, gradually narrowed into the style, 2–celled; style thick (2)2·5–4 mm. long, at the base hairy like the ovary at the apex; stigma capitate.
Sepals pale green, free or nearly so, subequal, the inner slightly smaller, ovate, broadly ovate or suborbicular, 1–1·6 times as long as wide, 1·7–2·5(3) x 1·5–2·2 mm., rounded or obtuse at the apex, ciliate, glabrous or with some minute appressed hairs at the base inside, without colleters.
Seeds pale ochraceous, flattened or not, often more or less plano–convex, obliquely ovate, elliptic, or tetrahedral, usually irregularly curved, 1–4–1–8 times as long as wide, 11–25 x 6–18 x 5–8 mm., with thick very short erect hairs, rather rough.
Shrub or tree, 3-15 m high. Leaves rounded at apex. Inflorescence lateral. Ovules innumerable. Fruit large, from 40-100 mm in diameter, many-seeded, rind thick and woody. Flowers greenish white or greenishyellow.
Inflorescences axillary or ramiflorous, usually several together, very short and nearly fasciculate, 1 x 1·2 x 1·5 cm., 1·2 x branched, few–flowered. Peduncle, branches, and pedicels short or very short.
Stamens hardly exserted; filaments extremely short, inserted at the mouth of the corolla tube; anthers oblong, about twice as long as wide, 1·2–1·8 x 0·6–0·8 mm., glabrous.
Branches pale grey to dark brown, powdery or not, lenticellate or not, smooth; branchlets glabrous or pubescent, terete.
Often many–stemmed and much–branched shrub or small tree, 1·50–10(20) m. high, deciduous.
Bark mostly pale grey or greyish–white, smooth; wood whitish.
Trunk 7–60 cm. in diam., mostly branched from low down.
In each cell 5–30 ovules.
Flowers 4–merous.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 8.0 - 12.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color
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Nitrogen fixer -
Photosynthetic pathway c3

Environment

A tropical plant. It occurs in woodland and along rivers and in the coastal forest. In Tanzania it grows between 900-1,500 m above sea level. In Brisbane Botanical Gardens.
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Gallery and coastal forests. Deciduous bushland and woodland at elevations from sea level to around 1, 500 metres.
Light -
Soil humidity 1-3
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The flesh is removed and dried then eaten with honey. It can also be eaten when fresh. It can be used for a drink. The dried fruit are ground into a fine powder then used for making porridge. The seeds are not eaten. They contain strychnine and other poisonous alkaloids. (It has been recorded that the dried seeds are edible) CAUTION: Many Loganiaceae are very poisonous.
Uses animal food food gene source material medicinal poison wood
Edible fruits leaves seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown from seeds. Seed germinate easily.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Strychnos madagascariensis unspecified picture

Distribution

Strychnos madagascariensis world distribution map, present in Angola, Botswana, Kenya, Madagascar, Mozambique, Malawi, Somalia, eSwatini, Tanzania, United Republic of, South Africa, Zambia, and Zimbabwe

Conservation status

Strychnos madagascariensis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:547300-1
WFO ID wfo-0000503013
COL ID 53796
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Strychnos madagascariensis Strychnos dysophylla Strychnos randiaeformis Strychnos baronii Strychnos engleri Strychnos quaqua Strychnos burtonii Strychnos wakefieldii Strychnos mocquerysii Strychnos behrensiana Strychnos leiocarpa Strychnos melonicarpa Strychnos pachyphylla Strychnos polyphylla Strychnos stenoneura Strychnos innocua subsp. dysophylla Strychnos unguacha var. dysophylla Strychnos dysophylla subsp. engleri Strychnos unguacha var. micrantha Strychnos innocua subsp. burtonii Strychnos innocua subsp. gerrardii Strychnos vacacoua