Coutarea hexandra (Jacq.) K.Schum.

Species

Angiosperms > Gentianales > Rubiaceae > Coutarea

Characteristics

Small trees or shrubs, the twiglets terete, glabrous, relatively smooth, the lenticels often abundant and conspicuous, the branchlets rigid or subarcuate, the nodes usually well spaced. Leaves usually ovate rotund to ovate, 4-12 cm long, 2-6 cm wide, round or occasionally deltoid at the apex, acuminate, the acumen short, subfalcate, acute or more often acuminate, basally rounded, obtuse or truncate, often vaguely inequilateral, the venation immersed or prominulous above, prominulous beneath, the costa slender, the lateral veins 6-12, scarcely arcuate, well spaced, stiffly papyraceous, glabrous above, glabrous to golden pubescent beneath, the hairs curled, scattered along the veins, often tufted in the axils; petioles short, to 1.5 cm long, glabrous or often golden villulose; stipules soon deciduous, widely triangular or compressed hemispherical, 2-4 mm long, acute. Inflorescences terminal and axillary, glabrate or minutely puberulent, the peduncle absent or short, the branches 3-5, often lenticellate, terminated usually by 3-flowered cymules or to single flowers; bracteoles linear subulate or ovate subulate, several located at the base of the pedicel; bracts lanceolate or subulate; pedicels short. Flowers large, showy, hypanthium oblong rotund or oblong, ca. 6 mm long, smooth, puberulent, the calycine cup ca. 1.5 mm long, glabrous within, with patches of oblong glands at the junction of the calycine lobes, these ca. 0.75 mm long, obtuse, the lobes 4-6, subulate, ca. 5.5 mm long, obtuse, marginally pubescent; corolla obovate oblong, slightly falcate and thus zygo-morphic, to 8 cm long, 1.8-3.0 cm wide, obtuse at the apex, attenuate acute at the base, petaloid, scattered pubescent outside, puberulent within, the lobes 2.0-2.5 cm long, obtuse or acute; stamens 6, the anthers linear oblong, 1.7-2.2 cm long, ca. 1.5 mm wide, sagittate at the base, basifixed, the filaments free of the corolla tube, ca. 7.5 cm long; style linear, 7.5-9.5 cm long, ca. 1.5 mm wide, the stigmas 1.2-1.7 cm long, scarcely wider than the style, the ovary wall oblong in cross section, with conspicuous ducts. Fruits capsular, oblong obovoid or ob-ovoid rotund, 2.5-5.0(-7.0) cm long, 2.0-2.8 cm wide, strongly compressed, lig-nose, bisculcate, dark brown, lustrous, glabrous, with numerous white, punctate lenticels; seeds round or oblong, 2-15 mm long, brown, the body 2-5 mm long, alate, the wing membranous, entire or undulate.
Life form perennial
Growth form tree
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 4.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Moist soils in alluvial river valleys and near rivers, in both dense, primary forests and the more open, secondary formations, generally preferring more open, sunny positions. Thickets in Panama.
Light 7-9
Soil humidity 4-6
Soil texture 1-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

Uses charcoal material medicinal wood
Edible -
Therapeutic use Astringent (unspecified), Fever (unspecified), Malaria (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Habit

Coutarea hexandra habit picture by Nelson Zamora Villalobos (cc-by-nc)

Leaf

Coutarea hexandra leaf picture by Nelson Zamora Villalobos (cc-by-nc)
Coutarea hexandra leaf picture by Nelson Zamora Villalobos (cc-by-nc)
Coutarea hexandra leaf picture by Nelson Zamora Villalobos (cc-by-nc)

Flower

Coutarea hexandra flower picture by Nelson Zamora Villalobos (cc-by-nc)
Coutarea hexandra flower picture by Nelson Zamora Villalobos (cc-by-nc)
Coutarea hexandra flower picture by Nelson Zamora Villalobos (cc-by-nc)

Fruit

Coutarea hexandra fruit picture by Nelson Zamora Villalobos (cc-by-nc)

Distribution

Coutarea hexandra world distribution map, present in Belize, Bolivia (Plurinational State of), Brazil, Costa Rica, Ecuador, Guatemala, Guyana, Honduras, Nicaragua, Panama, Peru, Paraguay, Suriname, and Venezuela (Bolivarian Republic of)

Conservation status

Coutarea hexandra threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:67491-2
WFO ID wfo-0000926501
COL ID Z2XX
BDTFX ID -
INPN ID 629434
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Portlandia speciosa Portlandia hexandra Cinchona souzana Coutarea corymbosa Coutarea flavescens Coutarea lindeniana Coutarea pubescens Coutarea speciosa Bignonia triflora Portlandia acuminata Coutarea portlandia Coutarea hexandra f. albiflora Coutarea hexandra f. grandiflora Coutarea hexandra f. tarapotensis Coutarea scherffiana Exostema souzanum Gardenia hexagona Coutarea campanilla Coutarea hexandra var. amazonica Coutarea hexandra var. calycina Coutarea hexandra var. campanilla Coutarea hexandra var. fluminensis Coutarea hexandra var. pubescens Coutarea hexandra var. speciosa Coutarea hexandra f. roseiflora Coutarea hexandra var. hexandra Coutarea hexandra var. tarapotensis Coutarea hexandra f. pubescens Coutarea hexandra var. typica Coutarea hexandra