Edit History
HEDYTHYRSUS Bremek. [family RUBIACEAE]
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, (1976) Author: B. VERDCOURT
Names
HEDYTHYRSUS Bremek. [family RUBIACEAE], in Verh. K. Nederl. Akad. Wet., Afd. Natuurk., ser. 2, 48(2): 149 (1952)
Information
Small erect shrubs, invariably turning blackish on drying and with distinctly discolorous leaves. Leaves very shortly petiolate, elliptic to lanceolate, rather thick, closely placed, the lateral nerves invisible or very obscure; stipule sheath usually hairy, divided into several subulate fimbriae. Flowers heterostylous, small, in many-flowered dense terminal corymbs or panicles. Calyx-lobes 4, triangular or lanceolate, often with fimbriae between. Corolla shortly subcylindrical, slightly widened above; lobes 4; throat glabrous or sparsely hairy inside. Stamens well exserted in short-styled flowers. Ovary 2-locular; ovules few on peltate placentas; style filiform; stigma-lobes subglobose. Capsule depressed hemispherical, produced into a conical beak which splits loculicidally and septicidally into 4 diverging valves. Seeds few, much compressed, elliptic or oblong, sometimes subangular and often slightly winged at both ends or all round, reticulate.
Range
A genus of 2 very closely allied species confined to upland areas in tropical Africa.
Notes
It might be advisable to treat these taxa as subspecies since the differences are rather trivial.
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, (1976) Author: B. VERDCOURT
Names
HEDYTHYRSUS Bremek. [family RUBIACEAE], in Verh. K. Nederl. Akad. Wet., Afd. Natuurk., ser. 2, 48(2): 149 (1952)
Information
Small erect shrubs, invariably turning blackish on drying and with distinctly discolorous leaves. Leaves very shortly petiolate, elliptic to lanceolate, rather thick, closely placed, the lateral nerves invisible or very obscure; stipule sheath usually hairy, divided into several subulate fimbriae. Flowers heterostylous, small, in many-flowered dense terminal corymbs or panicles. Calyx-lobes 4, triangular or lanceolate, often with fimbriae between. Corolla shortly subcylindrical, slightly widened above; lobes 4; throat glabrous or sparsely hairy inside. Stamens well exserted in short-styled flowers. Ovary 2-locular; ovules few on peltate placentas; style filiform; stigma-lobes subglobose. Capsule depressed hemispherical, produced into a conical beak which splits loculicidally and septicidally into 4 diverging valves. Seeds few, much compressed, elliptic or oblong, sometimes subangular and often slightly winged at both ends or all round, reticulate.
Range
A genus of 2 very closely allied species confined to upland areas in tropical Africa.
Notes
It might be advisable to treat these taxa as subspecies since the differences are rather trivial.
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, (1976) Author: B. VERDCOURT
Names
HEDYTHYRSUS Bremek. [family RUBIACEAE], in Verh. K. Nederl. Akad. Wet., Afd. Natuurk., ser. 2, 48(2): 149 (1952)
Information
Small erect shrubs, invariably turning blackish on drying and with distinctly discolorous leaves. Leaves very shortly petiolate, elliptic to lanceolate, rather thick, closely placed, the lateral nerves invisible or very obscure; stipule sheath usually hairy, divided into several subulate fimbriae. Flowers heterostylous, small, in many-flowered dense terminal corymbs or panicles. Calyx-lobes 4, triangular or lanceolate, often with fimbriae between. Corolla shortly subcylindrical, slightly widened above; lobes 4; throat glabrous or sparsely hairy inside. Stamens well exserted in short-styled flowers. Ovary 2-locular; ovules few on peltate placentas; style filiform; stigma-lobes subglobose. Capsule depressed hemispherical, produced into a conical beak which splits loculicidally and septicidally into 4 diverging valves. Seeds few, much compressed, elliptic or oblong, sometimes subangular and often slightly winged at both ends or all round, reticulate.
Range
A genus of 2 very closely allied species confined to upland areas in tropical Africa.
Notes
It might be advisable to treat these taxa as subspecies since the differences are rather trivial.
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