Malvaceae, or the mallow family, is a family of flowering plants containing over 200 genera with close to 2,300 species. The largest genera in terms of number of species include Hibiscus (300 species), Sterculia (250 species), Dombeya (225 species), Pavonia (200 species) and Sida (200 species).
This article is based on the second circumscription, as presented by the Angiosperm Phylogeny Website. The Malvaceae s.l. (hereafter simply "Malvaceae") comprise nine subfamilies. A tentative cladogram of the family is shown below. The diamond denotes a poorly supported branching (<80%).
It is important to point out the relationships between these subfamilies are still either poorly supported or almost completely obscure, so that the very definition of the family may change dramatically as new studies are published.
If looking for information about the traditional Malvaceae s.s., we recommend referring to Malvoideae, the subfamily that approximately corresponds to that group.
Leaves are generally alternate, often palmately lobed or compound and palmately veined. The margin may be entire, but when dentate a vein ends at the tip of each tooth (malvoid teeth). Stipules are present. The stems contain mucous canals and often also mucous cavities. Hairs are common, and are most typically stellate.
The flowers are commonly borne in definite or indefinite axillary inflorescences, which are often reduced to a single flower, but may also be cauliflorous, oppositifolious or terminal. They often bear supernumerary bracts. They can be unisexual or bisexual and are generally actinomorphic, often associated with conspicuous bracts, forming an epicalyx. They generally have five valvate sepals, most frequently basally connate. Five imbricate petals. The stamens are five to numerous, connate at least at their bases, but often forming a tube around the pistils. The pistils are composed of two to many connate carpels. The ovary is superior, with axial placentation. Capitate or lobed stigma. The flowers have nectaries made of many tightly packed glandular hairs, usually positioned on the sepals.
Photosynthetic rates of two species of malvaceae, Malvaviscus arboreus var. drummondii (wax mallow) and Abutilon theophrasti (velvetleaf).(Report)
Sep 01, 2011; Communities are composed of species that occur together spatially and temporally (Begon et al., 2006). Determining the niche of...
The identity and conservation status of Indagator fordii (Brownlowiaceae/ Malvaceae-Brownlowioideae, formerly Tiliaceae), a monotypic tree genus from Queensland, Australia
Oct 01, 2007; Summary. Indagator fordii Halford, described as a monotypic tree genus in the Sterculiaceae-Helmiopsideae from Queensland is...
Protocols for callus and somatic embryo initiation for Hibiscus sabdariffa L. (Malvaceae): Influence of explant type, sugar, and plant growth regulators
Mar 01, 2010; Abstract A significant work about callus induction and somatic embryogenesis was realized for Hibiscus sabdariffa. Two genotypes...