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PIPTADENIASTRUM Brenan [family LEGUMINOSAE-MIMOSOIDEAE]
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
PIPTADENIASTRUM Brenan [family LEGUMINOSAE-MIMOSOIDEAE], in K.B. 1955: 179 (1955)
Information
Tree, tall, unarmed. Leaves bipinnate, pinnae each with many pairs of leaflets; rhachis of leaf without glands; pinnae often alternate. Flowers small, hermaphrodite, in often aggregated, spiciform racemes. Calyx gamosepalous, 5-toothed, glabrous outside except for base. Petals 5, free, glabrous outside, separated from ovary-base by a short perigynous zone composed of stamens and disc consolidated with an apparent corolla-tube. Stamens 10, fertile; anthers each with a caducous apical gland. Ovary glabrous outside. Pods straight or somewhat curved, flattened, at maturity dehiscing along one of the sutures, the valves remaining attached along the other, neither splitting transversely nor into layers. Seeds flattened, ± oblong, brown, surrounded by a broad membranous wing; the body of the seed somewhat elongate in the direction of the length of the pod; cotyledons elongate transversely to the radicle; funicle attached at or near the middle of the seed.
Range
A genus of single species in the forest regions of tropical Africa.
Notes
Although the seed superficially resembles in shape that of Newtonia, in fact it lies transversely in the pod, the embryo being at right angles to the sutures; the seed is thus much wider than long. In Newtonia the seed lies longitudinally in the pod, the embryo being parallel with the sutures, and the seed is thus much longer than wide.
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
PIPTADENIASTRUM Brenan [family LEGUMINOSAE-MIMOSOIDEAE], in K.B. 1955: 179 (1955)
Information
Tree, tall, unarmed. Leaves bipinnate, pinnae each with many pairs of leaflets; rhachis of leaf without glands; pinnae often alternate. Flowers small, hermaphrodite, in often aggregated, spiciform racemes. Calyx gamosepalous, 5-toothed, glabrous outside except for base. Petals 5, free, glabrous outside, separated from ovary-base by a short perigynous zone composed of stamens and disc consolidated with an apparent corolla-tube. Stamens 10, fertile; anthers each with a caducous apical gland. Ovary glabrous outside. Pods straight or somewhat curved, flattened, at maturity dehiscing along one of the sutures, the valves remaining attached along the other, neither splitting transversely nor into layers. Seeds flattened, ± oblong, brown, surrounded by a broad membranous wing; the body of the seed somewhat elongate in the direction of the length of the pod; cotyledons elongate transversely to the radicle; funicle attached at or near the middle of the seed.
Range
A genus of single species in the forest regions of tropical Africa.
Notes
Although the seed superficially resembles in shape that of Newtonia, in fact it lies transversely in the pod, the embryo being at right angles to the sutures; the seed is thus much wider than long. In Newtonia the seed lies longitudinally in the pod, the embryo being parallel with the sutures, and the seed is thus much longer than wide.
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
PIPTADENIASTRUM Brenan [family LEGUMINOSAE-MIMOSOIDEAE], in K.B. 1955: 179 (1955)
Information
Tree, tall, unarmed. Leaves bipinnate, pinnae each with many pairs of leaflets; rhachis of leaf without glands; pinnae often alternate. Flowers small, hermaphrodite, in often aggregated, spiciform racemes. Calyx gamosepalous, 5-toothed, glabrous outside except for base. Petals 5, free, glabrous outside, separated from ovary-base by a short perigynous zone composed of stamens and disc consolidated with an apparent corolla-tube. Stamens 10, fertile; anthers each with a caducous apical gland. Ovary glabrous outside. Pods straight or somewhat curved, flattened, at maturity dehiscing along one of the sutures, the valves remaining attached along the other, neither splitting transversely nor into layers. Seeds flattened, ± oblong, brown, surrounded by a broad membranous wing; the body of the seed somewhat elongate in the direction of the length of the pod; cotyledons elongate transversely to the radicle; funicle attached at or near the middle of the seed.
Range
A genus of single species in the forest regions of tropical Africa.
Notes
Although the seed superficially resembles in shape that of Newtonia, in fact it lies transversely in the pod, the embryo being at right angles to the sutures; the seed is thus much wider than long. In Newtonia the seed lies longitudinally in the pod, the embryo being parallel with the sutures, and the seed is thus much longer than wide.
![PIPTADENIASTRUM Brenan [family LEGUMINOSAE-MIMOSOIDEAE]](/fsi/img/misc/plants/static_thumbs/flora_tropEA_icon96.jpg)
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