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Brackenridgea arenaria De Wild. & Dur. N. Robson [family OCHNACEAE]

Date Updated: 26 July 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 2, Part 1, page 224, (1963) Author: N. K. B. Robson
Names
Brackenridgea arenaria De Wild. & Dur. N. Robson [family OCHNACEAE], in Bol. Soc. Brot., Sér. 2, 36: 37 (1962). TAB. 46 fig. B. Type from the Congo (Kisantu). Ochna ferruginea Engl. [family OCHNACEAE], Bot. Jahrb. 17: 76 (1893) non Kuntze (1891). Syntypes from Tanganyika. Ochna floribunda Bak. [family OCHNACEAE], in Kew Bull. 1895: 289 (1895) non Kuntze (1891). Type: N. Rhodesia, near Mweru, Carson 8 (K). Ochna arenaria De Wild. & Dur. [family OCHNACEAE], in Bull. Herb. Boiss., Sér. 2, 1: 7 (1900). — Gilg in Engl., Bot. Jahrb. 33: 232 (1903). — De Wild. in Rev. Zool. Afr. 7, Suppl. Bot.: 30 (1919). Type as for Brackenridgea arenaria. Ochna angustifolia Engl. & Gilg [family OCHNACEAE], in Engl., Bot. Jahrb. 32: 135 (1902); in Warb., Kunene-Samb.-Exped. Baum: 304 (1903). — Gilg, loc. cit. — Exell & Mendonça, C.F.A. 1, 2: 285, t. 12 fig. G (1951). — White, F.F.N.R.: 250, fig. 43D (1962). Type from Angola (Huila). Brackenridgea ferruginea Engl. Van Tiegh. [family OCHNACEAE], in Journ. de Bot. 16: 47 (1902). — Gilg, tom. cit.: 273 (1903). Syntypes as for Ochna ferruginea. Pleuroridgea ferruginea Engl. Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 16: 400 (1902). Syntypes as for Ochna ferruginea. Campylochnella thollonii Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 16: 401 (1902). Type from the Congo. Campylochnella arenaria De Wild. & Dur. Van Tiegh [family OCHNACEAE], ,tom. cit.: 402 (1902). Type as for Brackenridgea arenaria. Campylochnella angustifolia Engl. & Gilg Van Tiegh. [family OCHNACEAE], loc. cit. Type as for Ochna angustifolia. Ochna roseiflora Engl. & Gilg. [family OCHNACEAE], in Warb., Kunene-Samb.-Exped. Baum: 304 (1903). — Gilg, loc. cit. Type from Angola (Bié). Campylochnella roseiflora Engl. & Gilg Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 18: 60 (1903). Type as for Ochna roseiflora. Campylochnella pungens Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 9, Bot. 5: 178 (1907). Type from Middle Congo. Ochna bequaertii De Wild. [family OCHNACEAE], in Rev. Zool. Afr., 7, Suppl. Bot. 30 (1919). Syntypes from the Congo.
Information
Rhizomatous shrublet or shrub up to 1 (2) m. high, frequently flowering just above ground level, with bark brown, ± rough, flaking; branches striate, purplish with pale lenticels at first, becoming white or pale brown and then ± ferrugineous, with bark not usually exfoliating. Leaves petiolate; lamina 4–12·4 (16) ×1·2–3·7 cm., oblong or elliptic to oblanceolate or more rarely obovate, acute or mucronate to rounded at the apex, with margin densely ± curved-glandular-serrulate or more rarely entire, cuneate at the base, herbaceous to chartaceous, with primary lateral nerves ascending, interconnected by more widely spreading secondary laterals in turn linked by tertiary cross-veins, prominent above, plane below; petiole 1–4 (14) mm. long, rather stout, flat or grooved above. Flowers solitary or 1–4 in fascicles, often with several fascicles clustered together, at the base of current year’s shoots, appearing before the leaves; pedicels (0·9) 1·3–2·5 cm. long in fruit. Sepals pink, 5–6 mm. long in flower, oblong, rounded, spreading or reflexed after flowering, becoming crimson-red, 8–10 mm. long, broadly oblong, flat and spreading or reflexed in fruit. Petals white, frequently tinged pink or with pink centre line, 6–8 mm. long, obovate to narrowly oblanceolate, narrowed at the base but not clawed. Stamens (13–19) 20 (21–22), with anthers yellow, 1·5–2 mm. long, 3/4–11/4 times as long as the filaments, straight, often twisting spirally after dehiscence. Carpels 5–7, with styles completely united; stigma small, scarcely lobed. Drupelets 6–8 × 6–7 mm., curved-lenticular, compressed.
Habitat
Deciduous woodland and margins of seasonal swamps, on sandy soils
Altitude range
915–1675 m. 1675 915
Distribution
Zimbabwe C Beatrice, Progress Farm, 1220 m., fl. 14.ix.1923, Eyles 4535 (K; SRGH).Zimbabwe W Wankie, fr. 10.xi.1949, Davison in West 3054 (K; SRGH).Zambia S Near Siamambo Forest Reserve, fl. 27.vii.1952, Angus 63 (FHO; K).Zambia C Broken Hill, fr. 17.xii.1907, Kassner 2203 (BM).Zambia W Mwinilunga Distr., Matonchi Farm, fl. 1.ix.1930, Milne-Redhead 1013 (K).Zambia N Abercorn, fr. 22.ix.1949, Bullock 1051 (K; SRGH).Zimbabwe N Mrewa road, Shawanoye R., fl. 7.ix.1931, Jack in GHS 5236 (SRGH).Zambia B Balovale Distr., near Chavuma, fr. 13.x.1952, White 3485 (BM; FHO; K).
Distribution (external)
Congo Ruanda Urundi W. Tanganyika Middle Congo Angola northern SW. Africa
Notes
B. arenaria can be easily distinguished from dwarf species of Ochna by the laciniate or fin-like stipules persistent on first year stems, the white petals and pink sepals, the usually glandular-serrulate leaves with distinctive venation, and the discoid drupelets.

Date Updated: 26 July 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 2, Part 1, page 224, (1963) Author: N. K. B. Robson
Names
Brackenridgea arenaria De Wild. & Dur. N. Robson [family OCHNACEAE], in Bol. Soc. Brot., Sér. 2, 36: 37 (1962). TAB. 46 fig. B. Type from the Congo (Kisantu). Ochna ferruginea Engl. [family OCHNACEAE], Bot. Jahrb. 17: 76 (1893) non Kuntze (1891). Syntypes from Tanganyika. Ochna floribunda Bak. [family OCHNACEAE], in Kew Bull. 1895: 289 (1895) non Kuntze (1891). Type: N. Rhodesia, near Mweru, Carson 8 (K). Ochna arenaria De Wild. & Dur. [family OCHNACEAE], in Bull. Herb. Boiss., Sér. 2, 1: 7 (1900). — Gilg in Engl., Bot. Jahrb. 33: 232 (1903). — De Wild. in Rev. Zool. Afr. 7, Suppl. Bot.: 30 (1919). Type as for Brackenridgea arenaria. Ochna angustifolia Engl. & Gilg [family OCHNACEAE], in Engl., Bot. Jahrb. 32: 135 (1902); in Warb., Kunene-Samb.-Exped. Baum: 304 (1903). — Gilg, loc. cit. — Exell & Mendonça, C.F.A. 1, 2: 285, t. 12 fig. G (1951). — White, F.F.N.R.: 250, fig. 43D (1962). Type from Angola (Huila). Brackenridgea ferruginea Engl. Van Tiegh. [family OCHNACEAE], in Journ. de Bot. 16: 47 (1902). — Gilg, tom. cit.: 273 (1903). Syntypes as for Ochna ferruginea. Pleuroridgea ferruginea Engl. Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 16: 400 (1902). Syntypes as for Ochna ferruginea. Campylochnella thollonii Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 16: 401 (1902). Type from the Congo. Campylochnella arenaria De Wild. & Dur. Van Tiegh [family OCHNACEAE], ,tom. cit.: 402 (1902). Type as for Brackenridgea arenaria. Campylochnella angustifolia Engl. & Gilg Van Tiegh. [family OCHNACEAE], loc. cit. Type as for Ochna angustifolia. Ochna roseiflora Engl. & Gilg. [family OCHNACEAE], in Warb., Kunene-Samb.-Exped. Baum: 304 (1903). — Gilg, loc. cit. Type from Angola (Bié). Campylochnella roseiflora Engl. & Gilg Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 18: 60 (1903). Type as for Ochna roseiflora. Campylochnella pungens Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 9, Bot. 5: 178 (1907). Type from Middle Congo. Ochna bequaertii De Wild. [family OCHNACEAE], in Rev. Zool. Afr., 7, Suppl. Bot. 30 (1919). Syntypes from the Congo.
Information
Rhizomatous shrublet or shrub up to 1 (2) m. high, frequently flowering just above ground level, with bark brown, ± rough, flaking; branches striate, purplish with pale lenticels at first, becoming white or pale brown and then ± ferrugineous, with bark not usually exfoliating. Leaves petiolate; lamina 4–12·4 (16) ×1·2–3·7 cm., oblong or elliptic to oblanceolate or more rarely obovate, acute or mucronate to rounded at the apex, with margin densely ± curved-glandular-serrulate or more rarely entire, cuneate at the base, herbaceous to chartaceous, with primary lateral nerves ascending, interconnected by more widely spreading secondary laterals in turn linked by tertiary cross-veins, prominent above, plane below; petiole 1–4 (14) mm. long, rather stout, flat or grooved above. Flowers solitary or 1–4 in fascicles, often with several fascicles clustered together, at the base of current year’s shoots, appearing before the leaves; pedicels (0·9) 1·3–2·5 cm. long in fruit. Sepals pink, 5–6 mm. long in flower, oblong, rounded, spreading or reflexed after flowering, becoming crimson-red, 8–10 mm. long, broadly oblong, flat and spreading or reflexed in fruit. Petals white, frequently tinged pink or with pink centre line, 6–8 mm. long, obovate to narrowly oblanceolate, narrowed at the base but not clawed. Stamens (13–19) 20 (21–22), with anthers yellow, 1·5–2 mm. long, 3/4–11/4 times as long as the filaments, straight, often twisting spirally after dehiscence. Carpels 5–7, with styles completely united; stigma small, scarcely lobed. Drupelets 6–8 × 6–7 mm., curved-lenticular, compressed.
Habitat
Deciduous woodland and margins of seasonal swamps, on sandy soils
Altitude range
915–1675 m. 1675 915
Distribution
Zimbabwe C Beatrice, Progress Farm, 1220 m., fl. 14.ix.1923, Eyles 4535 (K; SRGH).Zimbabwe W Wankie, fr. 10.xi.1949, Davison in West 3054 (K; SRGH).Zambia S Near Siamambo Forest Reserve, fl. 27.vii.1952, Angus 63 (FHO; K).Zambia C Broken Hill, fr. 17.xii.1907, Kassner 2203 (BM).Zambia W Mwinilunga Distr., Matonchi Farm, fl. 1.ix.1930, Milne-Redhead 1013 (K).Zambia N Abercorn, fr. 22.ix.1949, Bullock 1051 (K; SRGH).Zimbabwe N Mrewa road, Shawanoye R., fl. 7.ix.1931, Jack in GHS 5236 (SRGH).Zambia B Balovale Distr., near Chavuma, fr. 13.x.1952, White 3485 (BM; FHO; K).
Distribution (external)
Congo Ruanda Urundi W. Tanganyika Middle Congo Angola northern SW. Africa
Notes
B. arenaria can be easily distinguished from dwarf species of Ochna by the laciniate or fin-like stipules persistent on first year stems, the white petals and pink sepals, the usually glandular-serrulate leaves with distinctive venation, and the discoid drupelets.

Date Updated: 26 July 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 2, Part 1, page 224, (1963) Author: N. K. B. Robson
Names
Brackenridgea arenaria De Wild. & Dur. N. Robson [family OCHNACEAE], in Bol. Soc. Brot., Sér. 2, 36: 37 (1962). TAB. 46 fig. B. Type from the Congo (Kisantu). Ochna ferruginea Engl. [family OCHNACEAE], Bot. Jahrb. 17: 76 (1893) non Kuntze (1891). Syntypes from Tanganyika. Ochna floribunda Bak. [family OCHNACEAE], in Kew Bull. 1895: 289 (1895) non Kuntze (1891). Type: N. Rhodesia, near Mweru, Carson 8 (K). Ochna arenaria De Wild. & Dur. [family OCHNACEAE], in Bull. Herb. Boiss., Sér. 2, 1: 7 (1900). — Gilg in Engl., Bot. Jahrb. 33: 232 (1903). — De Wild. in Rev. Zool. Afr. 7, Suppl. Bot.: 30 (1919). Type as for Brackenridgea arenaria. Ochna angustifolia Engl. & Gilg [family OCHNACEAE], in Engl., Bot. Jahrb. 32: 135 (1902); in Warb., Kunene-Samb.-Exped. Baum: 304 (1903). — Gilg, loc. cit. — Exell & Mendonça, C.F.A. 1, 2: 285, t. 12 fig. G (1951). — White, F.F.N.R.: 250, fig. 43D (1962). Type from Angola (Huila). Brackenridgea ferruginea Engl. Van Tiegh. [family OCHNACEAE], in Journ. de Bot. 16: 47 (1902). — Gilg, tom. cit.: 273 (1903). Syntypes as for Ochna ferruginea. Pleuroridgea ferruginea Engl. Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 16: 400 (1902). Syntypes as for Ochna ferruginea. Campylochnella thollonii Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 16: 401 (1902). Type from the Congo. Campylochnella arenaria De Wild. & Dur. Van Tiegh [family OCHNACEAE], ,tom. cit.: 402 (1902). Type as for Brackenridgea arenaria. Campylochnella angustifolia Engl. & Gilg Van Tiegh. [family OCHNACEAE], loc. cit. Type as for Ochna angustifolia. Ochna roseiflora Engl. & Gilg. [family OCHNACEAE], in Warb., Kunene-Samb.-Exped. Baum: 304 (1903). — Gilg, loc. cit. Type from Angola (Bié). Campylochnella roseiflora Engl. & Gilg Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 18: 60 (1903). Type as for Ochna roseiflora. Campylochnella pungens Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 9, Bot. 5: 178 (1907). Type from Middle Congo. Ochna bequaertii De Wild. [family OCHNACEAE], in Rev. Zool. Afr., 7, Suppl. Bot. 30 (1919). Syntypes from the Congo.
Information
Rhizomatous shrublet or shrub up to 1 (2) m. high, frequently flowering just above ground level, with bark brown, ± rough, flaking; branches striate, purplish with pale lenticels at first, becoming white or pale brown and then ± ferrugineous, with bark not usually exfoliating. Leaves petiolate; lamina 4–12·4 (16) ×1·2–3·7 cm., oblong or elliptic to oblanceolate or more rarely obovate, acute or mucronate to rounded at the apex, with margin densely ± curved-glandular-serrulate or more rarely entire, cuneate at the base, herbaceous to chartaceous, with primary lateral nerves ascending, interconnected by more widely spreading secondary laterals in turn linked by tertiary cross-veins, prominent above, plane below; petiole 1–4 (14) mm. long, rather stout, flat or grooved above. Flowers solitary or 1–4 in fascicles, often with several fascicles clustered together, at the base of current year’s shoots, appearing before the leaves; pedicels (0·9) 1·3–2·5 cm. long in fruit. Sepals pink, 5–6 mm. long in flower, oblong, rounded, spreading or reflexed after flowering, becoming crimson-red, 8–10 mm. long, broadly oblong, flat and spreading or reflexed in fruit. Petals white, frequently tinged pink or with pink centre line, 6–8 mm. long, obovate to narrowly oblanceolate, narrowed at the base but not clawed. Stamens (13–19) 20 (21–22), with anthers yellow, 1·5–2 mm. long, 3/4–11/4 times as long as the filaments, straight, often twisting spirally after dehiscence. Carpels 5–7, with styles completely united; stigma small, scarcely lobed. Drupelets 6–8 × 6–7 mm., curved-lenticular, compressed.
Habitat
Deciduous woodland and margins of seasonal swamps, on sandy soils
Altitude range
915–1675 m. 1675 915
Distribution
Zimbabwe C Beatrice, Progress Farm, 1220 m., fl. 14.ix.1923, Eyles 4535 (K; SRGH).Zimbabwe W Wankie, fr. 10.xi.1949, Davison in West 3054 (K; SRGH).Zambia S Near Siamambo Forest Reserve, fl. 27.vii.1952, Angus 63 (FHO; K).Zambia C Broken Hill, fr. 17.xii.1907, Kassner 2203 (BM).Zambia W Mwinilunga Distr., Matonchi Farm, fl. 1.ix.1930, Milne-Redhead 1013 (K).Zambia N Abercorn, fr. 22.ix.1949, Bullock 1051 (K; SRGH).Zimbabwe N Mrewa road, Shawanoye R., fl. 7.ix.1931, Jack in GHS 5236 (SRGH).Zambia B Balovale Distr., near Chavuma, fr. 13.x.1952, White 3485 (BM; FHO; K).
Distribution (external)
Congo Ruanda Urundi W. Tanganyika Middle Congo Angola northern SW. Africa
Notes
B. arenaria can be easily distinguished from dwarf species of Ochna by the laciniate or fin-like stipules persistent on first year stems, the white petals and pink sepals, the usually glandular-serrulate leaves with distinctive venation, and the discoid drupelets.
Brackenridgea arenaria De Wild. & Dur. N. Robson [family OCHNACEAE]
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