Holothrix tridactylites Summerh.

Species

Angiosperms > Asparagales > Orchidaceae > Holothrix

Characteristics

Perennial herb 9–21 cm. high.. Leaf 1, basal, orbicular-reniform, 1–1.5 cm. long and broad, shrivelled at flowering-time.. Scape erect, with a few lanceolate sheaths, retrorsely pubescent below, glabrous above.. Inflorescence 3–10-flowered, ± secund, rather lax.. Bracts lanceolate, very acute, shorter than the ovary.. Flowers white.. Sepals ovate, oblong or elliptical, apiculate, the laterals oblique, 2–2.5 mm. long.. Petals broadly cuneate in general shape, 4–5 mm. long, the upper half or two-thirds 3-lobed, the lobes diverging, about equal, 2–3.5 mm. long, shortly papillose.. Lip cuneate or oblong from a narrow base, 3-lobed in apical half, 4–5 mm. long; lobes similar to those of petals.. Spur slightly incurved, narrowly cylindrical, 4 mm. long.. Fig. 1, p. 10.
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Lip 4–6 mm long, cuneate or oblong, adnate to column at base, 3-lobed, the lobes similar to the petal lobes but slightly shorter.
Leaf 1, appressed to ground, 7–15 × 7–15 mm, orbicular to reniform, glabrous, more or less withered at flowering time.
Scape with retrorse hairs at the base, glabrous towards the apex and with 2–3 bract-like leaves.
Inflorescence laxly 2–10-flowered, flowers ± secund; ovary 5–7 mm long; bracts 2.5 mm long.
Sepals green, 2–2.5 × 1.25–2 mm, ovate, acute or apiculate, the lateral sepals oblique.
Petals 4–5 × 2–6 mm, 3-lobed; lobes 2–3.5 mm long, acute, very shortly papillose.
Spur 3–4 mm long, slender, tapering, straight or slightly incurved.
Flowers white, sometimes tinged with lilac.
Terrestrial herb 5–11 cm tall.
Tubers 10–20 × 5–10 mm, ovoid.
Anther c. 2 mm tall.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.11
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) -

Usage

Uses -
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

Holothrix tridactylites world distribution map, present in Tanzania, United Republic of and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:638947-1
WFO ID wfo-0000982932
COL ID 6M9JB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Holothrix tridactylites