Tridactyle tridentata Schltr.

Species

Angiosperms > Asparagales > Orchidaceae > Tridactyle

Characteristics

A lithophyte or epiphyte with erect, arcuate or pendent few-branched stems, 10–50 cm. or more long, 3–5 mm. in diameter.. Roots basal, smooth, 2–3 mm. in diameter.. Leaves cylindrical, grooved on the upper surface, 6–10 cm. long, 1.5–3 mm. wide, articulated to 7–10 mm. long leaf-sheaths.. Inflorescences 1.8–2.7 cm. long, 4–5-flowered; peduncle 5 mm. long; bracts amplexicaul, obconical, 1 mm. long.. Flowers green to yellow or dull orange; pedicel and ovary 5 mm. long, lepidote.. Dorsal sepal oblong-elliptic, obtuse, 4.5–5 mm. long, 2–2.3 mm. wide; lateral sepals obliquely ovate, acute, 4–5.3 mm. long, 2.5–3 mm. wide.. Petals falcate, lanceolate, acute, 4.3–5.4 mm. long, 1.2–1.3 mm. wide.. Lip auriculate at the base, 3-lobed in the apical half, 4.5–5 mm. long, 3.5–4 mm. wide; side lobes acute, shorter than or as long as the mid-lobe; mid-lobe triangular, acute.. Spur filiform or dilated in apical half, incurved, 6–18 mm. long.. Column 1–2 mm. long.
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Plants epiphytic or rarely epilithic; stems to 300 mm long, branching, tangled, c. 3 mm in diameter; roots restricted to the very base; leaves not imbricate, terete, sulcate, stiff and often fleshy, 60-100, 2-4 mm in diameter. Inflorescences borne below the leaves, less than 5 mm long with very short peduncles, with 2-5 flowers. Flowers cream-coloured, star-like, 3 mm in diameter. Sepals triangular, acute, spreading, 3 x 2 mm. Petals lorate, 2.5 x 1 mm. Lip narrowly oblong, 2-3 mm long, tridentate, teeth acute, lateral teeth shorter than the median, prominent calli flanking the spur entrance; spur cylindrical, 7-8 mm long. Gynostemium squat, 1 mm tall, widely winged in front. Capsules 10 mm long, ellipsoid.
Plants epiphyte, up to 0.18 m high. Roots restricted to base. Stems up to 300 mm long, branching, tangled. Leaves terete, sulcate, stiff, fleshy, 60-100 x 2-4 mm. Inflorescence borne below leaves, < 5 mm long, 2-5-flowered. Flowers cream-coloured, star-like, 3 mm in diam. Sepals triangular, spreading, acute, 3 x 2 mm. Petals lorate, 2.5 x 1 mm. Lip narrowly oblong, 2-3 mm long, tridentate, teeth acute, lateral teeth shorter than median; spur cylindrical 7-8 mm long. Flowering time Nov., Dec.
Lip auriculate at the base, 3–6.5 × 3.5–4 mm, 3-lobed towards the apex; mid-lobe 1.7–2.5 mm long, triangular, acute; side lobes slender, acute, of similar length to mid-lobe; spur 6–18 mm long, straight, very slightly dilated in the apical half.
Leaves borne on apical half of the stem, 7–15 cm long and 1.5–4 mm in diameter, terete, with or without a groove along the upper surface, olive-green.
Inflorescences borne along the stem, below the leaves and in leaf axils, 1.5–3 cm long, densely 4–8-flowered.
Stem stout, up to c. 50 cm long, 4–5 mm in diameter, rather sparsely branched.
Sepals 3–6 × 2.5–3.5 mm, ovate, acute, the lateral sepals oblique.
Erect or pendent epiphytic herbs, occasionally lithophytic.
Flowers whitish, pale ochre-yellow or salmon-pink.
Petals 3–6 × 1–2 mm, lanceolate, acute, falcate.
Pedicel and ovary 2.5–5 mm long, lepidote.
Flowers straw-yellow or apricot-coloured.
Younger leaf sheaths dotted with black.
Roots 2–4 mm in diameter, smooth.
Bracts c. 1 mm long.
Column 1–2 mm long.
Life form perennial
Growth form herb
Growth support epiphyte
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.09
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Tridactyle tridentata world distribution map, present in Angola, Burkina Faso, Central African Republic, Congo, Gabon, Ghana, Guinea, Kenya, Liberia, Mozambique, Nigeria, Rwanda, Sierra Leone, Togo, Tanzania, United Republic of, Uganda, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:660777-1
WFO ID wfo-0000328129
COL ID 58NLH
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Tridactyle bolusii Tridactyle goetzeana Tridactyle teretifolia Tridactyle tridentata Angraecum goetzeanum Angraecum hislopii Angraecum bolusii Angraecum tridentatum