Edit History
ACACIA Willd. [family LEGUMINOSAE-MIMOSOIDEAE]
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical Africa, Vol 2, page 1, (1871) Author: Papilionaceae by Mr. J. G. Baker; Caesalpinieae and Mimoseae by Prof. Oliver)
Names
ACACIA Willd. [family LEGUMINOSAE-MIMOSOIDEAE], Benth. et Hook. f. Gen. Plant. i. 594.
Information
Flowers capitate or spicate, sessile or very shortly pedicellate, usually 5–4-merous. Calyx campanulate or funnel-shaped, toothed or lobed. Petals free or united more or less, valvate. Stamens indefinite, exserted, free or consolidated at base with the disk; anthers minute; “pollen usually cohering in 2–4 masses in each cell.” Ovary sessile or stipitate; ovules few or many; style slender with a small terminal stigma. Legume usually linear or oblong, flat, convex or terete, straight falcate or twisted, membranous coriaceous or woody, 2-valved or indehiscent, continuous or septate within; very rarely separating into articles. Seeds compressed. Trees or shrubs, in African species usually spinose. Leaves bipinnate. Stipules spinescent, inconspicuous or submembranous. Bracts usually cohering in an involucel towards the middle, or at one extremity of the peduncle.
Range
A very large genus, of which a great proportion is peculiar to Australia, the rest scattered through tropical and subtropical regions of both hemispheres. No subgenus or section is peculiar to Africa, although many of the species appear to be so.
Notes
It is probable that on a general revision of the genus Acacia the forms grouped under and around A. Catechu amongst the spicate-flowered, and A. pennata amongst the capitate-flowered species, may be differently distributed. I can only regard their treatment here as provisional. Too much reliance must not be placed on the alternatives of the following Clavis.
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical Africa, Vol 2, page 1, (1871) Author: Papilionaceae by Mr. J. G. Baker; Caesalpinieae and Mimoseae by Prof. Oliver)
Names
ACACIA Willd. [family LEGUMINOSAE-MIMOSOIDEAE], Benth. et Hook. f. Gen. Plant. i. 594.
Information
Flowers capitate or spicate, sessile or very shortly pedicellate, usually 5–4-merous. Calyx campanulate or funnel-shaped, toothed or lobed. Petals free or united more or less, valvate. Stamens indefinite, exserted, free or consolidated at base with the disk; anthers minute; “pollen usually cohering in 2–4 masses in each cell.” Ovary sessile or stipitate; ovules few or many; style slender with a small terminal stigma. Legume usually linear or oblong, flat, convex or terete, straight falcate or twisted, membranous coriaceous or woody, 2-valved or indehiscent, continuous or septate within; very rarely separating into articles. Seeds compressed. Trees or shrubs, in African species usually spinose. Leaves bipinnate. Stipules spinescent, inconspicuous or submembranous. Bracts usually cohering in an involucel towards the middle, or at one extremity of the peduncle.
Range
A very large genus, of which a great proportion is peculiar to Australia, the rest scattered through tropical and subtropical regions of both hemispheres. No subgenus or section is peculiar to Africa, although many of the species appear to be so.
Notes
It is probable that on a general revision of the genus Acacia the forms grouped under and around A. Catechu amongst the spicate-flowered, and A. pennata amongst the capitate-flowered species, may be differently distributed. I can only regard their treatment here as provisional. Too much reliance must not be placed on the alternatives of the following Clavis.
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical Africa, Vol 2, page 1, (1871) Author: Papilionaceae by Mr. J. G. Baker; Caesalpinieae and Mimoseae by Prof. Oliver)
Names
ACACIA Willd. [family LEGUMINOSAE-MIMOSOIDEAE], Benth. et Hook. f. Gen. Plant. i. 594.
Information
Flowers capitate or spicate, sessile or very shortly pedicellate, usually 5–4-merous. Calyx campanulate or funnel-shaped, toothed or lobed. Petals free or united more or less, valvate. Stamens indefinite, exserted, free or consolidated at base with the disk; anthers minute; “pollen usually cohering in 2–4 masses in each cell.” Ovary sessile or stipitate; ovules few or many; style slender with a small terminal stigma. Legume usually linear or oblong, flat, convex or terete, straight falcate or twisted, membranous coriaceous or woody, 2-valved or indehiscent, continuous or septate within; very rarely separating into articles. Seeds compressed. Trees or shrubs, in African species usually spinose. Leaves bipinnate. Stipules spinescent, inconspicuous or submembranous. Bracts usually cohering in an involucel towards the middle, or at one extremity of the peduncle.
Range
A very large genus, of which a great proportion is peculiar to Australia, the rest scattered through tropical and subtropical regions of both hemispheres. No subgenus or section is peculiar to Africa, although many of the species appear to be so.
Notes
It is probable that on a general revision of the genus Acacia the forms grouped under and around A. Catechu amongst the spicate-flowered, and A. pennata amongst the capitate-flowered species, may be differently distributed. I can only regard their treatment here as provisional. Too much reliance must not be placed on the alternatives of the following Clavis.
![ACACIA Willd. [family LEGUMINOSAE-MIMOSOIDEAE]](/fsi/img/misc/plants/static_thumbs/Flora_of_tropical_Africa_icon96.jpg)
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