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Angraecum cultriforme
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Angraecum cultriforme
Angraecum cultriforme

Genus Angraecum

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Angraecum cultriforme
Photo courtesy Patrick Denissen www.pnporchids.be
Angraecum cultriforme
Angraecum cultriforme
Photo courtesy Patrick Denissen www.pnporchids.be
Angraecum cultriforme
Angraecum cultriforme
Photo courtesy Patrick Denissen www.pnporchids.be
Angraecum cultriforme
Angraecum cultriforme
Photo courtesy Patrick Denissen www.pnporchids.be
Angraecum cultriforme

Kingdom

Plantae

Division

Magnoliophyta

Class

Liliopsida

Order

Asparagales

Family

Orchidaceae

Subfamily

Vandoïdeae Endlicher

Tribe

Vandaeae Lindley

Subtribe

Angraecinae Summerhayes

Alliance

Angraecum

Genus

Angraecum

Genus Abreviation

Angcm

Common Name

 

Section

 

Species

Angraecum cultriforme

Authority

Summerhayes

Source

Summerh. in Kew Bull. 13: 272 (1958).
- Morris, Epiphyt. Orch. Malawi: 87 (1970).
- Grosvenor in Excelsa 6: 78 (1976).
- Williamson, Orch. S. Centr. Africa: 180 (1977).
- Ball, South. African Epiphyt. Orch.: 56 (1978).
- Stewart et al., Wild Orch. South. Africa: 257 (1982).
- Cribb in F.T.E.A., Orchidaceae: 498 (1989).
- la Croix et al., Orch. Malawi: 239 (1991).
- Stewart, Orch. Kenya: 18 (1996). Type from Tanzania.

Synonyms

 

Etymology

 

Distribution

Malawi S: Mulanje Distr., Lichenya Forest Reserve, 550 m, fl. 10.i.1986, la Croix & Spurrier 779 (K).

Mozambique MS: Sofala Prov., Inhansato, 50 m, fl. 16.iii.1956, Gomes e Sousa 4299 (K).

Zambia W: Nchunga Falls, fl. 26.xii.1935, R.A.F. Brenan 5 (K).

Zimbabwe E: Mutasa Distr., Honde Valley, xii.1961, Plowes in Ball 945 (SRGH).

Range

Kenya; South Africa; Tanzania

Altitude

50-700 m.

Habitat

Riverine forest and thicket, hanging in tangles from small branches, usually low down on host plant

Life Form

Epiphytic

Flowers

9-21 × 2.3-3.8 mm - variable see notes

Flowering time

RSA: Oct-Apr - Other Africa:

Fragrance

 

 Top

Angraecum cultriforme
Drawing by I. la Croix

Description

Pendent epiphytic herb; stem elongated, sometimes branched, up to c. 20 cm long.Roots 1-2 mm in diameter, borne along the stem opposite leaves.Leaves several, distichous, twisted at the base so as to lie in one plane, 3-6 × 0.5-0.9 cm, ligulate, falcate, unequally and acutely 2-lobed at the apex, the longer lobe to 7 mm long, the lobes often slightly divergent, the leaves olive-green often tinged reddish or orange.Inflorescences borne along the stem, opposite leaves, arising at same place in successive years, 1-2-flowered, the second bud usually aborting.Flowers orange-straw coloured.Peduncle 15-25 mm long; pedicel c. 7 mm long; ovary 5 mm long, forming a right angle with the pedicel.Bracts c. 4 mm long.Sepals 9-21 × 2.3-3.8 mm, lanceolate, acute; petals similar but slightly shorter.Lip 8-15 × 3.3-6 mm, boat-shaped, acuminate; spur 13-26 mm long, somewhat swollen in last 7 mm.Flowers often non-resupinate, with the spur lying parallel to the dorsal sepal.Column 1.3-2 mm long.

Notes

This species is variable in size of flower; those of Malawi plants are at the bottom end of the size range, but the type specimen is also rather small-flowered.For a discussion of the relationship between Angraecum cultriforme, Angraecum stolzii and Angraecum umbrosum, see last species.

Links

FZ volume:11 part:2 (1998) Orchidaceae by I. la Croix & P.J. Cribb

     

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