Spermatophyta: Monocotyledonae

Araceae - Arum family

Lemnaceae

Dyer, R.A. (1976) The Genera of southern African flowering plants. Vol. 2 (Monocotyledons). Department of Agricultural Technical Services, Pre

Haigh, A. & Boyce, P. (2012) Araceae FZ 12(1)

Hepper, F.N. (1973) Lemnaceae FTEA

Leistner, O.A. (ed.) (2000) Seed plants of southern Africa: families and genera Strelitzia 10

Mayo, S.J. (1985) Araceae FTEA

Description of the family

Perennial, terrestrial, epiphytic or aquatic, herbs; sometimes the whole plant reduced to a minute flat or fleshy body (in the former Lemnaceae). Leaves alternate, 1-many, petiolate; petiole usually with a basal sheath; lamina simple or variously lobed. Inflorescence pedunculate, consisting of a fleshy ± cylindric spadix subtended by, or enclosed within, a sometimes showy spathe; or in the former Lemnaceae borne in a lateral cavity of the plant body or within lateral pouches. Spadix either uniform with bisexual flowers or monoecious with female flowers at base and male above; sterile flowers often present in various arrangements, sometimes forming a sterile apex. Bracts 0. Flowers minute, sessile; perianth cup-like or composed of 4-9 free or connate segments. Stamens opposite perianth segments, free or connate. Ovary usually superior, 1-many-locular, each loculus with 1-many ovules; stigma (sub)sessile. Fruit a 1-many-seeded berry, these often brightly coloured or a utricle in the former Lemnaceae.

Comment: This family has been expanded to include duckweeds which were formerly placed under Lemnaceae.

Worldwide: c.116 genera and over 3,300 species, mostly tropical and subtropical with a few temperate.

Zimbabwe: 13 genera and 18 taxa.

Zantedeschia albomaculata

More sample images from the Araceae (Click on each image to see a larger version and details of the record)

Culcasia falcifolia

Culcasia falcifolia

Zamioculcas zamiifolia

Zamioculcas zamiifolia

Zantedeschia albomaculata subsp. albomaculata

Zantedeschia albomaculata subsp. albomaculata

Stylochaeton natalensis subsp. natalensis

Stylochaeton natalensis subsp. natalensis

Lemna aequinoctialis

Lemna aequinoctialis

Links to genera:     View: living plant images - herbarium specimen images - all images for this family

GenusContent
Amorphophallus Blume ex Decne.Description, Image
Colocasia SchottDescription, Image
Culcasia P. Beauv.Description, Image
Gonatopus Engl.Description, Image
Landoltia Les & D.J. Crawford
Lemna L.Description, Image
Pistia L.Description, Image
Spirodela Schleid.Description
Stylochaeton Lepr.Description, Image
Wolffia Horkel ex Schleid.Description
Wolffiella (Hegelm.) Hegelm.Description
Zamioculcas SchottDescription, Image
Zantedeschia Spreng.Description, Image

Other sources of information about Araceae:

Our websites:

Flora of Zimbabwe: cultivated Araceae
Flora of Mozambique: Araceae | cultivated Araceae
Flora of Zambia: Araceae

External websites:

GRIN (Germplasm Resources Information Network) taxonomy for plants report for Araceae
Google: Web - Images - Scholar


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-14

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2014). Flora of Zimbabwe: Family page: Araceae.
http://www.zimbabweflora.co.zw/speciesdata/family.php?family_id=18, retrieved 20 April 2014

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