Cyrtorchis ringens (Rchb.F.) Summerh.

Species

Angiosperms > Asparagales > Orchidaceae > Cyrtorchis

Characteristics

An epiphyte with arcuate or ascending stems up to 20 cm. long.. Leaves linear, unequally roundly bilobed at apex, 7.5–12.5 cm. long, 1.2–2.5 cm. wide.. Inflorescences 4–7 cm. long, densely 5–8-flowered; peduncle 1 cm. long or less, covered by sterile bracts; bracts ovate, obtuse, 3–8 mm. long, 4–7 mm. apart.. Flowers white with an ochre-salmon spur, sweetly scented; pedicel and ovary 10–13 mm. long.. Sepals lanceolate, acute or shortly acuminate, 9.5–11.6 mm. long, 3–5.5 mm. wide.. Petals similar, 9–9.7 mm. long, 3.4–4 mm. wide.. Lip lanceolate, acuminate, recurved, 9.5–10.5 mm. long, 3–4.5 mm. wide.. Spur incurved to straight, 2–3.3 cm. long.. Column 1–1.5 mm. long; rostellum 3–5 mm. long; viscidium hyaline.
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Leaves usually 6–7, distichous, 7.5–13.5 × 1.2–2.3 cm, broadly ligulate, equally or unequally 2-lobed at the apex with lobes rounded; blades thick and leathery, olive-green, wrinkled when dry.
Inflorescences borne on the stem mostly below the leaves, but sometimes in leaf axils, 4–7 cm long, densely to c. 12-flowered.
Lip 7–10.5 × 3–4.5 mm, lanceolate, acuminate, the apex recurved; spur 2–3.3 cm long, tapering, straight or slightly incurved.
Flowers scented, creamy-white, the spur sometimes pinkish, or greenish towards the tip.
Stem woody, up to c. 30 cm long, covered with black-brown old leaf bases.
Column 1–1.5 mm long; rostellum 3–5 mm long; viscidium hyaline.
Dorsal sepal 9–9.5 × 3–4 mm; lateral sepals 11–12 × 2–3 mm.
Sepals and petals lanceolate, acute, the tips recurved.
Bracts 5–8 mm long, whitish in bud but turning brown.
Pedicel and ovary 10–13 mm long.
Flowers white, weakly fragrant.
Petals 7.3–9.7 × 2.3–4 mm.
Roots c. 2 mm in diameter.
Epiphytic herb.
Life form perennial
Growth form herb
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Sexuality hermaphrodite
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Hardiness (USDA) 9-12

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Cultivation

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Images

Cyrtorchis ringens unspecified picture

Distribution

Cyrtorchis ringens world distribution map, present in Angola, Burkina Faso, Gabon, Ghana, Guinea, Liberia, Nigeria, Rwanda, Senegal, Sierra Leone, Tanzania, United Republic of, Uganda, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:626418-1
WFO ID wfo-0000936173
COL ID 33NMS
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Listrostachys bistorta Listrostachys hookeri Listrostachys ignoti Listrostachys ringens Listrostachys bucholziana Cyrtorchis belloneorum Cyrtorchis bistorta Cyrtorchis buchholziana Cyrtorchis hookeri Cyrtorchis ringens Angraecum buchholzianum Angraecum ringens Angraecum bistortum Homocolleticon ringens