Diplospora dubia (Lindl.) Masam.

Species

Angiosperms > Gentianales > Rubiaceae > Diplospora

Characteristics

Shrubs or trees, 1-12 m; branches terete to somewhat flattened, glabrous. Petiole 4-15 mm, glabrous; leaf blade drying leathery or rarely thickly papery, and yellowish green to brown, ovate-oblong, elliptic-oblong, elliptic, or lanceolate, 4-19.5 × 1.5-8 cm, both surfaces glabrous and rather shiny, base acute, cuneate, or obtuse, sometimes slightly oblique, margins often thinly revolute, apex acute to acuminate with tip often ultimately obtuse; secondary veins 5-11 pairs, without domatia; stipules persistent on distalmost 1 or 2(-4) nodes, ovate to triangular, 5-8 mm, glabrous, densely white sericeous inside, acute, keeled in upper part with keel often extending into an arista 1-4 mm. Inflorescences subcapitate to congested-fasciculate, 6-10 mm, puberulent to strigillose, tomentulose, or puberulent, sessile or subsessile; bracts triangular, ca. 1 mm, frequently fused in pairs, acute; pedicels 1-4 mm. Calyx strigillose to glabrescent; ovary portion obconic to obovoid, 0.5-1 mm; limb ca. 1 mm, 4-denticulate, sometimes also irregularly splitting. Corolla white or yellow, glabrous outside or sometimes strigose on tube; tube 2-3 mm; lobes elliptic-oblong to narrowly elliptic, 3-4 mm, obtuse. Fruiting pedicels to 8 mm. Berry red, subglobose, 4-9 mm in diam., sparsely strigillose to glabrous; seeds dark red, subovoid, 3-6 × 3-4 mm. Fl. Apr-Aug, fr. May-Feb of following year.
Life form -
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0 - 12.0
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.3
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses material medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Germination treatment -
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Optimum temperature (C°) -
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Productivity -

Images

Diplospora dubia unspecified picture
Diplospora dubia unspecified picture

Distribution

Diplospora dubia world distribution map, present in China, Taiwan, Province of China, and Viet Nam

Conservation status

Diplospora dubia threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:748497-1
WFO ID wfo-0000944103
COL ID 36N9C
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Tricalysia dubia Tricalysia lutea Tricalysia viridiflora Canthium dubium Canthium viridiflorum Diplospora viridiflora Discospermum dubium Diplospora dubia Diplospora buisanensis Diplospora tanakai Gardenia daphnoides Tricalysia viridiflora var. buisanensis Tricalysia viridiflora var. tanakae Diplospora viridiflora var. tanakae Hypobathrum viridiflorum