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DC. Subfamily MIMOSOIDEAE [family ]
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1959) Author: J. P. M. Brenan
Names
DC. Subfamily MIMOSOIDEAE [family ], Prodr. 2: 424 (1825), as suborder or tribe Mimoseae; Benth. in Hook., Journ. Bot. 3: 133 (1841)
Information
Trees, shrubs, lianes or rarely herbs, often prickly or spiny. Leaves bipinnate or (in exotic species only) simply pinnate or modified to phyllodes or absent. Inflorescences usually spikes, racemes or heads of sessile or shortly pedicellate, usually small or very small, regular, (3–)5(–6)-merous flowers. Sepals with valvate or rarely imbricate (only in Parkia among our genera) aestivation, often open from an early stage of bud, usually united to form a toothed or lobed calyx, rarely free. Petals valvate in bud, free or more often connate below into a tube. Stamens 4–10 (as many as or twice as many as the petals) or numerous, free or adnate below to the corolla or the filaments connate below into a tube, usually ± exserted. Anthers small, versatile, sometimes with an apical gland. Pollen-grains sometimes simple, but frequently compound or united. Pods and seeds various, the latter generally marked with areoles.
Notes
The generic order is in general that of Bentham’s monumental “Revision of the Suborder Mimoseae” in Trans. Linn. Soc. 30: 336–664 (1875), although not necessarily the true and final one. Dnyansagar (in Journ. Indian Bot. Soc. 34: 362–374 (1955)) has suggested a new classification based on embryological and pollen characters, by which the Mimosoïdeae would be divided primarily by the presence of either simple or compound pollen-grains. He has, however, examined less than half the genera occurring in our area, although others have been accounted for by Erdtman (Pollen Morphology and Plant Taxonomy, Angiosperms: 225–6 (1952)). Any classification on this basis would cut across most of the main tribes recognized by Bentham.Existing classifications make it often difficult to identify the genera of this subfamily without complete material, including flower and fruit. As one or the other is so frequently absent, I have endeavoured to construct two alternative keys, one designed for flowering, the other for fruiting specimens, together with a conspectus of the various types of pod encountered in the subfamily. It must be clearly understood, however, that the keys and conspectus are artificial and apply to East Africa, and must not be relied upon in other areas or for identifying exotics.
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1959) Author: J. P. M. Brenan
Names
DC. Subfamily MIMOSOIDEAE [family ], Prodr. 2: 424 (1825), as suborder or tribe Mimoseae; Benth. in Hook., Journ. Bot. 3: 133 (1841)
Information
Trees, shrubs, lianes or rarely herbs, often prickly or spiny. Leaves bipinnate or (in exotic species only) simply pinnate or modified to phyllodes or absent. Inflorescences usually spikes, racemes or heads of sessile or shortly pedicellate, usually small or very small, regular, (3–)5(–6)-merous flowers. Sepals with valvate or rarely imbricate (only in Parkia among our genera) aestivation, often open from an early stage of bud, usually united to form a toothed or lobed calyx, rarely free. Petals valvate in bud, free or more often connate below into a tube. Stamens 4–10 (as many as or twice as many as the petals) or numerous, free or adnate below to the corolla or the filaments connate below into a tube, usually ± exserted. Anthers small, versatile, sometimes with an apical gland. Pollen-grains sometimes simple, but frequently compound or united. Pods and seeds various, the latter generally marked with areoles.
Notes
The generic order is in general that of Bentham’s monumental “Revision of the Suborder Mimoseae” in Trans. Linn. Soc. 30: 336–664 (1875), although not necessarily the true and final one. Dnyansagar (in Journ. Indian Bot. Soc. 34: 362–374 (1955)) has suggested a new classification based on embryological and pollen characters, by which the Mimosoïdeae would be divided primarily by the presence of either simple or compound pollen-grains. He has, however, examined less than half the genera occurring in our area, although others have been accounted for by Erdtman (Pollen Morphology and Plant Taxonomy, Angiosperms: 225–6 (1952)). Any classification on this basis would cut across most of the main tribes recognized by Bentham.Existing classifications make it often difficult to identify the genera of this subfamily without complete material, including flower and fruit. As one or the other is so frequently absent, I have endeavoured to construct two alternative keys, one designed for flowering, the other for fruiting specimens, together with a conspectus of the various types of pod encountered in the subfamily. It must be clearly understood, however, that the keys and conspectus are artificial and apply to East Africa, and must not be relied upon in other areas or for identifying exotics.
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1959) Author: J. P. M. Brenan
Names
DC. Subfamily MIMOSOIDEAE [family ], Prodr. 2: 424 (1825), as suborder or tribe Mimoseae; Benth. in Hook., Journ. Bot. 3: 133 (1841)
Information
Trees, shrubs, lianes or rarely herbs, often prickly or spiny. Leaves bipinnate or (in exotic species only) simply pinnate or modified to phyllodes or absent. Inflorescences usually spikes, racemes or heads of sessile or shortly pedicellate, usually small or very small, regular, (3–)5(–6)-merous flowers. Sepals with valvate or rarely imbricate (only in Parkia among our genera) aestivation, often open from an early stage of bud, usually united to form a toothed or lobed calyx, rarely free. Petals valvate in bud, free or more often connate below into a tube. Stamens 4–10 (as many as or twice as many as the petals) or numerous, free or adnate below to the corolla or the filaments connate below into a tube, usually ± exserted. Anthers small, versatile, sometimes with an apical gland. Pollen-grains sometimes simple, but frequently compound or united. Pods and seeds various, the latter generally marked with areoles.
Notes
The generic order is in general that of Bentham’s monumental “Revision of the Suborder Mimoseae” in Trans. Linn. Soc. 30: 336–664 (1875), although not necessarily the true and final one. Dnyansagar (in Journ. Indian Bot. Soc. 34: 362–374 (1955)) has suggested a new classification based on embryological and pollen characters, by which the Mimosoïdeae would be divided primarily by the presence of either simple or compound pollen-grains. He has, however, examined less than half the genera occurring in our area, although others have been accounted for by Erdtman (Pollen Morphology and Plant Taxonomy, Angiosperms: 225–6 (1952)). Any classification on this basis would cut across most of the main tribes recognized by Bentham.Existing classifications make it often difficult to identify the genera of this subfamily without complete material, including flower and fruit. As one or the other is so frequently absent, I have endeavoured to construct two alternative keys, one designed for flowering, the other for fruiting specimens, together with a conspectus of the various types of pod encountered in the subfamily. It must be clearly understood, however, that the keys and conspectus are artificial and apply to East Africa, and must not be relied upon in other areas or for identifying exotics.
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