Spermatophyta: Dicotyledonae: Archichlamydeae: Malvales

Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae - formerly Sterculiaceae

Wild, H. (1960-1) Sterculiaceae Flora Zambesiaca 1(2)

Description of the family

Herbs, shrubs or trees. Stipules usually present. Leaves usually alternate, simple or digitately compound. Flowers bisexual, unisexual or polygamous, actinomorphic. Calyx ± divided into (usually 5) lobes. Epicalyx bracts usually present. Petals usually 5, hypogynous or 0. Stamens 5-many, staminodes sometimes present. Anthers 2-thecous. Ovary superior, 2-5-locular or with 2-5 ± coherent carpels which separate in fruit.

Comment: According to the most recent taxonomic research by the Angiosperm Phylogeny Group (APG-III), Malvaceae sensu lato now includes Bombacaceae, Tiliaceae and Sterculiaceae, three families traditionally considered separate but closely related. In this new concept Malvaceae would consist of the following nine subfamilies:

Byttnerioideae (formerly part of Sterculiaceae, including Hermannia, Melochia and Waltheria)
Grewioideae (formerly part of Tiliaceae including all our regional genera)
Sterculioideae (formerly part of , including Cola and Sterculia)
Tilioideae (formerly part of Tiliaceae Not in our region)
Dombeyoideae (formerly part of Sterculiaceae, including Dombeya and Melhania)
Brownlowioideae (formerly part of Tiliaceae Not in our region)
Helicteroideae (formerly part of Sterculiaceae, including Triplochiton)
Malvoideae (formerly Malvaceae sensu stricto
Bombacoideae (formerly Bombacaceae)

Worldwide: 67 genera and 1500 species, mostly tropical and warm areas but a few temperate.

Zimbabwe: 8 genera and 33 taxa.

Waltheria indica

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

GenusContent
Cola Schott & Endl.Description, Image
Dombeya Cav.Description, Image
Hermannia L.Description, Image
Melhania Forssk.Description, Image
Melochia L.Description, Image
Sterculia L.Description, Image
Triplochiton K.Schum.Description, Image
Waltheria L.Description, Image

Other sources of information about Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae:

Our websites:

Flora of Botswana: Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Flora of Caprivi: Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Flora of Malawi: Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Flora of Mozambique: Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Flora of Mozambique: cultivated Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Flora of Zambia: Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Flora of Zambia: cultivated Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Flora of Zimbabwe: cultivated Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae

External websites:

African Plants: A Photo Guide (Senckenberg): Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae
Wikipedia: Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-20

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2020). Flora of Zimbabwe: Family page: Malvaceae: Byttnerioideae, Helicteroideae & Sterculioideae.
https://www.zimbabweflora.co.zw/speciesdata/family.php?family_id=213, retrieved 29 October 2020

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