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Angraecum angustipetalum
ENCYCLOPÆDIA
ANGRÆCORUM
Angraecum angustipetalum
Angraecum angustipetalum

Kingdom

Plantae

Division

Magnoliophyta

Class

Liliopsida

Order

Asparagales

Family

Orchidaceae

Subfamily

Vandoïdeae Endl.

Tribe

Vandaeae Lindl.

Subtribe

Angraecinae Summerh.

Alliance

Angraecum

Genus

Angraecum

Genus Abreviation

Angcm

Common Name

 

Section

 

Species

Angraecum angustipetalum

Authority

Rendle

Source

Cat. Talb. S. Nig. Pl.: 106, pl. 14, figs. 10-12 (1913). -
Summerhayes in Kew Bull. 13: 272 (1958); in F.W.T.A., ed. 2, 3: 257 (1968). -
Geerinck in Fl. Afr. Centr., Orchidaceae pt. 2: 474 (1992). Type from Nigeria.

Synonyms

- Angraecum nr. angustipetalum Morris of , Epiphyt. Orch. Malawi: 84 (1970). -la Croix et al., Orch. Malawi: 242 (1991)
- Angraecum boonei De Wild., Bull. Jard. Bot. État 5: 183 (1916)

Etymology

 

Distribution

Malawi S: Mulanje Distr., Mrs Arthur Shinn 191 (BM).

Range

Cameroon; Gabon; Ghana; Nigeria; Zaire

Altitude

 

Habitat

No details of habitat are given for the Malawi collection; elsewhere Angraecum angustipetalum occurs in dense evergreen forest

Life Form

Epiphytic cham.

Flowers

White

Flowering time

 

Fragrance

 

Description

Epiphytic herb; stem leafy, elongated, up to c. 40 cm long.Roots borne along the stem, c. 1 mm in diameter.Leaves many, distichous, 3.5-5.5 × 1.5-1.7 cm, ovate or elliptic, very unequally 2-lobed at the apex, with one lobe ± absent, the other to 4 mm long and acute.Inflorescences borne along the stem, opposite leaves, 1-flowered; peduncle c. 1 mm long.Flowers white.Sepals 13-18 × 1.5 mm, linear-lanceolate.Petals 11-12 mm long, almost filiform from a broader base.Lip c. 15 × 5 mm, ovate; spur 10-11 mm long, the last 5 mm swollen and fusiform.

Notes

In the Flora Zambesiaca area, this species is known only from 2 collections.These were made by the same person in Malawi, between 1915 and 1919.Although the area has been well collected and this species actively sought, it has not been found since.As most of the land around the base of Mt. Mulanje has been planted with tea, it is possible that the species no longer exists in the area; however, if it came from the forests on one of the plateaux, it could still reappear.It is not the only example of a species with a West African distribution occurring in Malawi; that of Eggelingia clavata is similar.

Links

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

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