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This genus is accepted, and its native range is SW. Tanzania to S. Africa.

[O-EM]
General Description

Terrestrial, lithophytic or epiphytic herbs with swollen fleshy roots, lacking tubers. Leaves several to many, in a basal rosette. Inflorescence erect with a few scattered sheaths, an erect lax or dense raceme; bracts small, shorter than ovary. Flowers numerous, sometimes subsecund, white, pink or lilac, usually with darker spots. Sepals briefly united to base of column and labellum, otherwise free, entire. Petals erect, entire, oblique. Labellum spurred or unspurred, longer than tepals, 3-5-lobed. Column short and broad; anther-loculi parallel, canals absent; pollinia two, with short caudicles and round viscidia; lateral appendages present, longer or shorter than the anther; stigmas ± club-shaped, erect; rostellum short. Capsules erect, ellipsoid or cylindrical. (PC).

Distribution

A genus of four species in tropical and South Africa. (PC).

Ecology

Stenoglottis plants usually occur on moss-covered boulders in forests or in sheltered rock crevices in cliffs, but they are occasionally epiphytic on trees (Schelpe 1966). Stenoglottis zambesiaca, for example, is principally found growing in submontane evergreen forests in southern Africa but also occasionally in woodland, on rotting logs, mossy rocks, and tree trunks (la Croix and Cribb 1995). This species occurs relatively high, from 1300-2150 m. Other species grow at lower elevations, e.g. S. woodii Schltr., up to 1500 m (la Croix and Cribb 1995).
Some Stenoglottis species have restricted ranges. Stenoglotis longifolia Hook.f. is confined to just a few localities in Zululand, and S. woodii has a scattered distribution across Transkei and Natal (S. Africa) and in Zimbabwe. The most common species is S. fimbriata Lindl., which is widely distributed through the forests of the eastern Cape Province, the Natal Midlands, and the Transvaal Drakensberg (Schelpe 1966). Stenoglottis Bowers berween March and May, having been dormant over the winter, following a period of growth in the summer (Schelpe 1966). Fruit-set in S. fimbriata and S. woodii is presumably high; their Bowers are reported to be consistently self-pollinating due to pollen germination of the undisturbed pollinia in situ and pollen tube growth from the anther sacs to the stigma (Schelpe 1966). (RN).

[FTEA]

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

Morphology General Habit
Terrestrial or epiphytic herbs with short stems and fleshy or tuber-like roots
Morphology Leaves
Leaves in a basal rosette or tuft, numerous
Morphology Reproductive morphology Inflorescences Scape
Scapes erect, bearing a few scattered sheaths
Morphology Reproductive morphology Flowers
Flowers numerous in an elongated raceme, usually pink with darker spots; bracts small, shorter than the ovary
Morphology Reproductive morphology Flowers Calyx
Sepals united for a short distance to the column and lip, otherwise free, the laterals oblique, spreading later
Morphology Reproductive morphology Flowers Corolla
Petals often a little broader than the sepals, oblique, erect
Morphology Reproductive morphology Flowers Labellum
Lip unspurred or with a short spur, united to the column, wedge-shaped, 3–5-lobed in the upper part, longer than the tepals
Morphology Reproductive morphology Flowers Column
Column very short and broad; anther loculi parallel, canals absent; caudicles of pollinia short, viscidia naked, auricles ligulate, longer or shorter than the anther; stigmas ± club-shaped, rostellum very short
Morphology Reproductive morphology Fruits
Capsules ellipsoid or cylindrical-ellipsoid, erect.

[FZ]

Orchidaceae, I. la Croix & P.J. Cribb. Flora Zambesiaca 11:1. 1995

Morphology General Habit
Terrestrial, lithophytic or epiphytic herb with swollen fleshy roots.
Morphology Leaves
Leaves several to many, in a basal rosette.
Morphology Reproductive morphology Inflorescences Scape
Scape erect with a few scattered sheaths.
Morphology Reproductive morphology Inflorescences
Inflorescence an erect lax or dense raceme, flowers sometimes sub-secund; bracts small, shorter than ovary.
Morphology Reproductive morphology Flowers
Flowers numerous, white, pink or lilac, usually with darker spots.
Morphology Reproductive morphology Flowers Calyx
Sepals briefly united to base of column and lip, otherwise free.
Morphology Reproductive morphology Flowers Corolla
Petals erect, oblique.
Morphology Reproductive morphology Flowers Labellum
Lip spurred or unspurred, longer than tepals, 3–5-lobed.
Morphology Reproductive morphology Flowers Column
Column very short and broad; anther-loculi parallel, canals absent; pollinia 2, with short caudicles and round viscidia; staminodes present, longer or shorter than the anther; stigmas ± club-shaped, erect; rostellum very short.
Morphology Reproductive morphology Fruits
Capsules erect, ellipsoid or cylindrical.

[O-EM]
Use

Stenoglottis are tolerant of pot cultivation. Three species are commonly found in cultivation, the finest being the South African S. longifolia, which can make fine specimen plants. (PC).

Native to:

Cape Provinces, KwaZulu-Natal, Malawi, Mozambique, Northern Provinces, Swaziland, Tanzania, Zimbabwe

Stenoglottis Lindl. appears in other Kew resources:

First published in Companion Bot. Mag. 2: 209 (1837)

Accepted by

  • (2020). https://www.mapress.com/j/pt/article/view/phytotaxa.456.3.1/41005 epublication.
  • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Pridgeon, A.M., Cribb, P.J., Chase, M.C. & Rasmussen, F.N. (2001). Orchidoideae (Part 1) Genera Orchidacearum 2: 1-416. Oxford University Press, New York, Oxford.

Literature

Flora Zambesiaca

  • Stewart in Kew Mag. 6, 1: 9–22 (1989).
  • in Companion Bot. Mag. 2: 209 (1837).

Flora of Tropical East Africa

  • in Hook., Comp. Bot. Mag. 2: 209 (1837)

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

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Orchideae: e-monocot.org
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