Amaioua corymbosa Kunth

Species

Angiosperms > Gentianales > Rubiaceae > Amaioua

Characteristics

Shrubs or trees to 40 ft tall, the branches terete, the nodes well spaced; branchlets angular, the leaves often crowded at the apex. Leaves oblong, often widely so, the large blades about twice as long as wide, 9-23 cm long, 2.5-12.5 cm wide, obtuse at the apex, shortly acuminate, the acumen to 1.2 cm long, basally inequilateral or equilateral, truncate, rounded, cuneate or acute, the costa plane to prominulous above, often appressed villose proximally, appressed villose beneath, the principal secondary veins 6-7, arcuate, prominulous above, prom-inent beneath, subcoriaceous, usually concolorous, lightly appressed villose on costa and secondary veins, often sparsely pubescent on margins, the intervenal area glabrous; petioles to 1.5 cm long, stout, to 0.3 cm wide, often arcuate; stipules oblanceolate, 1.5-2.5 cm long, ferrugineous-sericeous outside, glabrous and glandular within. Inflorescences terminal, few-flowered cymes, the peduncles arising in a fan, each usually unbranched, slender, stiff, angular, puberulent. Flowers staminate, pistillate or bisexual (functionally so?), the staminate flowers slightly larger, sessile or on pedicels shorter than the hypanthium, the buds ru-gous, turgid below the middle, tapering to an obtuse apex; hypanthium com-pressed cylindrical ca. 1 mm long, the calycine cup to 5 mm long, to 2.5 mm wide, carnose, puberulent outside, glabrous to puberulent and eglandular within, truncate, the calycine teeth 5, subulate, to 1 mm long, obtuse; corolla white, the tube cylindrical, somewhat inflated, 5-7 mm long, 1.5 mm wide, carnose, densely white villose outside, glabrous within, the lobes 5, lanceolate, 5-7 mm long, glabrous within, minutely white-puberulent adaxially; stamens 5-6, the anthers linear oblong, 4-4.5 mm long, distinctly petaloid rostrate for 1 mm, the filaments very short, inserted near middle of tube; ovarian disc doughnut shaped, 1-2 mm long, 0.9-1.8 mm wide, 0.5 mm high, the style slender, 4-9 mm long, the stigmas 2, subulate, 0.3-0.6 mm long. Fruits compactly clustered, sessile, oblong rotund, to 1.5 cm long, pruniform, marcescent, sparsely sericeous, often the vestige of the calyx forming a conspicuous annular scar; seeds compressed, angulate, ca. 2 mm long, shiny red, the surface with a series of sinuous, densely packed some-what parallel ridges.
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A medium sized tree. It grows 12 m tall. The trunk is highly fluted. It can be 30-40 cm across. The bark is red or brown and peels off in strips. The leaves are opposite and rounded in shape. They have prominent yellow veins underneath. Plants are separately male and female. The flowers are white and tube shaped. The fruit is an egg-shaped berry 1.3 cm long.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 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

Prefers deciduous, semi-dry forests and the edges of savannahs; at low elevations in Panama. Found in wet forests at or near sea level in Guatemala.
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It is a tropical plant. It often grows in secondary forest.
Light -
Soil humidity -
Soil texture -
Soil acidity -
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Hardiness (USDA) -

Usage

The fruit are eaten.
Uses wood
Edible fruits
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Distribution

Amaioua corymbosa world distribution map, present in Panama

Identifiers

LSID urn:lsid:ipni.org:names:743067-1
WFO ID wfo-0000957027
COL ID CDDM
BDTFX ID -
INPN ID 734699
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hexactina corymbosa Amaioua corymbosa