Burmannia oblonga Ridl.

Species

Angiosperms > Dioscoreales > Burmanniaceae > Burmannia

Characteristics

Saprophyte, 7-15 cm. Stem simple or branched, bearing 1-2 flowers, beset with appressed, ovate to lanceolate, obtuse, scale-like, about 1½ mm long leaves. Below the flower 2 lanceolate, scale-like bracts, 2½ mm. Flowers white, sometimes with yellow limb, 8-10 mm. Outer perianth lobes bifid, obtuse, about 1½ mm, papillose in the upper half at the margin, in the lower half with 2 yellow bags inside, provided with 2 involute, narrow triangular lateral lobes. Inner ones absent. Tube conical, 4-4½ mm long. Connective oblong, yellow, without crests or spur. Style thick-filiform, bearing at the apex 3 sessile, funnel-shaped curved stigmas. Style with stigmas about 4½ mm. Ovary subglobose, 2½-4 mm. Flower wings obovate, truncate, white, 5-7½ by 3-4 mm.
More
Plants without chlorophyll, holomycotrophic, flowering when 7-20 cm tall. Stems whitish, slender. Basal rosette leaves absent. Cauline leaves triangular, 1.5-3 × 1-2 mm. Inflorescences 1-4-flowered; bracts triangular-lanceolate, 2.5-3 mm. Flowers pedicellate to subsessile, whitish, 0.8-1.4 cm. Perianth tube 4.5-5.5 mm; wings conspicuous, 3-5.5 mm wide; outer tepals broadly oblong, ca. 2 mm, margin single; inner tepals absent. Stamens sessile; connectives with 2 apical crests and a pendent basal spur. Ovary globose to rhomboid, ca. 4 mm. Capsule subglobose. Seeds fusiform. Fl. and fr. Jul-Dec.
Life form annual
Growth form herb
Growth support mycoheterotroph
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.07 - 0.18
Root system -
Rooting depth (meter) -
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Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

On forested rocks or loamy soil in dense jungle or forest, ascending to 1300 m.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

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

Cultivation

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

Distribution

Burmannia oblonga world distribution map, present in China, Indonesia, Iceland, Malaysia, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:126637-1
WFO ID wfo-0000342540
COL ID NXQS
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Burmannia bifida Burmannia oblonga