Orchidaceae
Nephrangis

Nephrangis filiformis (Kraenzl.) Summerh.

First published in Kew Bull. 3: 302 (1948)
This species is accepted
The native range of this species is Tropical Africa. It is an epiphytic subshrub and grows primarily in the wet tropical biome.

Descriptions

Orchidaceae, I. la Croix & P.J. Cribb. Flora Zambesiaca 11:2. 1998

Morphology General Habit
Epiphytic herb.
Morphology Stem
Stem erect or pendent, slender, up to c. 35 cm long, usually branched, rooting at the base.
Morphology Roots
Roots c. 3 mm in diameter.
Morphology Leaves
Leaves borne towards the stem apex, 1.5–9 cm × 1–2 mm, terete, needle-shaped, sometimes slightly recurved.
Morphology Reproductive morphology Inflorescences
Inflorescences arising along the stem from same nodes in successive years, up to 10 mm long, 1–6-flowered.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary 3–5 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts very short.
Morphology Reproductive morphology Flowers
Flowers translucent, light brown or greenish-brown, the lip creamy-white, the column green-brown and anther cap yellow.
Morphology Reproductive morphology Flowers Calyx
Sepals 1.5–2.7 × 1.5–2 mm, ovate, obtuse; the lateral sepals connate at the base and slightly oblique.
Morphology Reproductive morphology Flowers Corolla
Petals 1.7–2.3 × 0.4–0.6 mm, linear or narrowly lanceolate, acute.
Morphology Reproductive morphology Flowers Labellum
Lip 4–5 mm long with a basal concave claw and a 2-lobed, apical lamina c. 3 × 3.5–5 mm; spur 4–9 mm long, narrowly conical, obtuse.
Morphology Reproductive morphology Flowers Column
Column 0.6–1.2 mm long.
[FZ]

Orchidaceae, V. S. Summerhayes. Flora of West Tropical Africa 3:1. 1968

Morphology Reproductive morphology Flowers Calyx
Sepals yellowish, brownish or orange
Morphology Reproductive morphology Flowers Labellum
Lip white.
[FWTA]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Orchidaceae, V. S. Summerhayes. Flora of Tropical East Africa. 1968

Morphology General Habit
An epiphytic herb.
Morphology Stem
Stems slender, usually branched, covered in persistent leaf-sheaths, leafy distally, pendulous, rooting at base only, 3–35(–50) cm. long.
Morphology Leaves
Leaves aciculiform, terete, somewhat flattened, usually arcuate, acute, glabrous or minutely pubescent at base, 1.5–9 cm. long, 0.1–0.2 cm. broad, sheaths obscurely rugulose, glabrous or minutely pubescent.
Morphology Reproductive morphology Inflorescences
Inflorescences abbreviated, 0.5–1(–1.5) cm. long, 1–3(–4)-flowered; bracts ovate, acute, amplexicaul, scarious, 0.5–1 mm. long.
Morphology Reproductive morphology Flowers
Flowers translucent, pale brown or brownish green, the lip creamy-white; pedicel and ovary slender, 3–4 mm. long.
Morphology Reproductive morphology Flowers Calyx
Sepals ovate to almost orbicular, obtuse, 1.5–2.7 mm. long, 1.5–2 mm. broad; laterals connate at base and slightly oblique.
Morphology Reproductive morphology Flowers Corolla
Petals narrowly elliptic to linear, acute, 1.7–2.3 mm. long, 0.4–0.6 mm. broad.
Morphology Reproductive morphology Flowers Labellum
Lip unguiculate and concave at base, abruptly dilated into 2 reniform, rounded lobes, total length 4–5 mm., bilobed apical lamina 3.5–5 mm. broad.
Morphology Reproductive morphology Flowers Spur
Spur narrowly conical, obtuse, 4–9 mm. long.
Morphology Reproductive morphology Flowers Column
Column 0.6–1.2 mm. long.
Figures
Fig. 161.AddendaThe following additions relate to Part 1 (Summerhayes, 1968).
Habitat
On forest and woodland trees; 600–2000 m.
Distribution
K5 T3 U2
[FTEA]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of West Tropical Africa

    • Flora of West Tropical Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0