Alyxia reinwardtii Blume

Species

Angiosperms > Gentianales > Apocynaceae > Alyxia

Characteristics

Ground creepers or climbers. Branchlets terete, weakly or strongly angled, densely lenticellate or not, glabrous to sparsely or densely puberulent. Leaves opposite or in whorls of 3-5; petiole 0.1-1.8 cm long, glabrous or pubescent; blade coriaceous to papery, elliptic, obovate or oblong, 1.1-17 by 0.3-6.1 cm, 1.5-5.1 times as long as wide, apex obtuse to acuminate, rarely caudate, not mucronate, base obtuse to decurrent onto petiole, margin weakly undulate or not, glabrous, sparsely puberulent only on midrib or puberulent all over beneath, glabrous, puberulent only on midrib or all over above, not punctate beneath, secondary veins 12-57 pairs, 60-90° from midrib. Inflorescence axillary or terminal, most frequently a simple unbranched pleiochasium, occasionally with a terminal compound pleiochasium with 1 or 2 nodes, much more rarely more complex with 1 or 2 internodes and branched or unbranched side branches, glabrous to puberulent in upper parts or all over, 1-3.5 cm long; peduncle 0.2-1.9 cm by 0.5-1.4 mm; bracts caducous or persistent, ovate, deltoid, linear, leafy or narrowly ovate, 1.1-4.5 by 0.5-1.2 mm; bracteoles one on pedicel or two immediately beneath calyx or on pedicel, absent or only on pedicel of terminal flower; flowers 3-12; pedicels 0.5-4.4 mm long. Sepals free, not fleshy, linear, ovate or narrowly ovate, 1-3.5 by 0.4-1.8 mm, 1.2-3.8 times as long as wide, apex obtuse to acuminate, ciliate, glabrous or sparsely to densely puberulent all over or puberulent on tips only. Corolla white, cream, yellow, pink, or with an orange or pale brown tube and white lobes; bud head 1.2-3.7 mm long which is 0.18-0.32(-0.42) of bud length, globular, ellipsoid, narrowly ovate, ovate or deltoid, apex rounded, obtuse, acute or acuminate; tube cylindrical, 3-14 by 1.1-2 mm, 1.6-10 times as long as sepals, 1.2-5.3 times as long as lobes, glabrous or sparsely puberulent around top of tube outside, glabrous or pubescent in upper half and around stamens inside; lobes elliptic, oblong, ovate or orbicular, 1.2-3.8 by 1-3.1 mm, 0.7-3.1 times as long as wide, apex rounded to acute, base auriculate, glabrous or sparsely puberulent outside, glabrous or pubescent at tips of lobes inside, ciliate, not ciliate or ciliate near tips only. Stamens inserted at 2.7-9.4 mm from corolla base which is 0.67-0.87 of tube length; filaments 0.2-0.8 mm long; anther apex 0-1 mm from corolla mouth, anthers 0.6-1.5 by 0.3-0.6 mm. Ovaries 0.4-1.2 mm high, glabrous, pubescent all over or pubescent around base only; style 0.9-8.5 mm long; style head 0.4-0.7 mm long. Fruit maturing black; stalks 1-14 mm long; with 1 or 2 articles in each string, 1 mm between articles, glabrous or sparsely puberulent at ends, articles with thin flesh, 6-20(-25.3) by 4.8-11.4 mm, ellipsoid or globose, symmetrical, apex rounded, acuminate or apiculate. Seeds 4.6-11 by 3.9-6.7 by 3-6.2 mm.
More
Lianas woody, to 3 m, glabrous except for inflorescences. Juvenile branchlets triangular, later terete. Leaves opposite or in whorls of 3 or 4; petiole to 5 mm; leaf blade narrowly elliptic or oblong, 8-11 X 1.5-2.5 cm, sub-leathery to leathery, abaxially glabrous, apex narrowly long acuminate, lateral veins obscure abaxially. Cymes fascicled, axillary, pubescent, 3-5 cm; peduncle 1-1.3 cm; bracteoles very narrowly ovate. Sepals ovate or narrowly so, ca. 2 1 mm, obtuse or acute, pubescent to subglabrous. Corolla yellowish white, glabrous, tube ca. 8.5 mm; lobes ovate, ca. 4 mm. Ovary villous. Fruit oblong-ellipsoid, ca. 1.5 cm X 5 mm. Fl. May-Oct, fr. Aug-Dec.
Life form perennial
Growth form shrub
Growth support climber
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Lowland to montane forest. Found in a wide range of habitats from primary or secondary lowland to montane or peat swamp forest or in scrub or open ridges; on granitic, sandy, clay or ultrabasic soils, from sea-level to 3,050 metres.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses material medicinal wood
Edible barks leaves
Therapeutic use Vermifuge (unspecified), Antipyretics (unspecified), Antitussive agents (unspecified), Cardiotonic agents (unspecified), Diarrhea (unspecified), Diuretics (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

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

Distribution

Alyxia reinwardtii world distribution map, present in Bangladesh, China, Indonesia, India, Cambodia, Lao People's Democratic Republic, Myanmar, Malaysia, Philippines, Singapore, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:76771-1
WFO ID wfo-0000956024
COL ID CD4C
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pulassarium breviflorum Pulassarium flavescens Pulassarium pisiforme Alyxia cinerea Alyxia kerrii Alyxia kurzii Alyxia nitens Alyxia odorata Alyxia pisiformis Alyxia quinata Gynopogon breviflorus Gynopogon flavescens Gynopogon pisiformis Gynopogon pumilus Gynopogon reinwardtii Alyxia calcicola Alyxia forbesii Alyxia pumila Alyxia reinwardtii Alyxia aromatica Alyxia flavescens Alyxia jasminae Alyxia lucida Alyxia winckeli Alyxia lucida var. meiantha Alyxia oleifolia var. tenuifolia Alyxia reinwardtii var. cinerea Alyxia reinwardtii var. insularis Alyxia reinwardtii var. latifolia Alyxia reinwardtii var. lucida Alyxia reinwardtii var. meiantha Alyxia reinwardtii var. obovatula Alyxia reinwardtii var. pumila Alyxia stellata var. latifolia Pulassarium odoratum Pulassarium pumilum Pulassarium quinatum