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Compilation
Ouratea subumbellata

6 Images see all

Rhabdophyllum welwitschii Tiegh. [family OCHNACEAE]
Syntype of Ouratea subumbellata Gilg [family OCHNACEAE]
Type of Ouratea subumbellata Gilg [family OCHNACEAE]
Isotype of Ouratea subumbellata Gilg. [family OCHNACEAE]
Isotype of Rhabdophyllum welwitschii Tiegh. [family OCHNACEAE]
Isotype of Ouratea subumbellata Gilg. [family OCHNACEAE]
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Name

Identification
Ouratea subumbellata Gilg [family OCHNACEAE ] Verified by Not on sheet, Ouratea welwitschii (Tiegh.) Exell [family OCHNACEAE ] Verified by Not on sheet, Rhabdophyllum welwitschii Tiegh. [family OCHNACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Rhabdophyllum welwitschii
  • Ouratea affinis
  • Ouratea subumbellata
  • Gomphia affinis
  • Rhabdophyllum umbellatum
  • Ouratea welwitschii

Flora

Entry for Ouratea welwitschii Van Tiegh. Exell [family OCHNACEAE]
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
Ouratea welwitschii Van Tiegh. Exell [family OCHNACEAE], in Journ. of Bot. 65, Suppl. Polypet.- 58 (1957). — De Wild., Pl. Bequaert. 4: 520, 533 (1929). — Exell & Mendonça, C.F.A. 1, 2: 293 (1951). — White, F.F.N.R.: 252 (1962). TAB. 47 fig. B. Type from Angola.
Ouratea affinis [family OCHNACEAE], sensu Hiern, Cat. Afr. Pl. Welw. 1: 122 (1896).
Rhabdophyllum welwitschii Van Tiegh. [family OCHNACEAE], in Ann. Sci. Nat., Sér. 8, Bot. 16: 322 (1902). Type as for Ouratea welwitschii.
Rhabdophyllum umbellatum Van Tiegh. [family OCHNACEAE], tom. cit.: 323 (1902). Type from Angola.
Rhabdophyllum penicellatum Van Tiegh. [family OCHNACEAE], loc. cit. Type from Angola.
Ouratea subumbellata Gilg [family OCHNACEAE], in Engl., Bot. Jahrb. 33: 254 (1903). Type as for O. welwitschii.
Information
Shrub or small tree (1) 2–5 m. high, much branched, with bark grey-brown, closely longitudinally fissured and with transverse cracks; branches slender, green and striate at first, becoming pale or purplish-brown. Leaves petiolate; lamina (5) 5·9–12·2 (14·5) × (1·5) 2·2–4 (5) cm., elliptic to oblanceolate or oblong, acute (rarely subobtuse) or acutely acuminate (with acumen up to 1 cm. long) at the apex, with margin undulate-serrulate to (rarely) subentire, cuneate at the base, chartaceous to subcoriaceous, with lateral nerves and veins very numerous, close together and parallel or almost so, scarcely prominent; petiole (1) 2–4 (5) mm. long, slender or rather stout; stipules 1–3 mm. long, free, intrapetiolar, partly or completely united, soon deciduous or persisting for 1–2 years. Flowers 4–18, in compound, paniculate or pseudumbellate racemes 1·5–7 cm. long borne in axils of caducous scale leaves at the base of current growth; bracteoles caducous; peduncle variable in length, subterete or ± compressed; pedicels c. 10–23 mm. long in fruit, longer than the sepals, articulated in the lower 1/4 (rarely at the base). Sepals 5·5–7 mm. long in flower, narrowly elliptic to oblong, acute, occasionally with a small subapical tooth, becoming deep pink or red, 7–8·5 mm. long and spreading in fruit. Petals yellow, 6–8 × 2–3 mm., elliptic-oblong. Stamens with anthers 5–5·5 mm. long, orange, rugose or papillose. Carpels 5. Drupelets 5–6 × 4–5 mm., globose or obovoid, dorsally carinate when dry.
Habitat
Fringing forest and dry evergreen Marquesia woodland, on sandy or sandy alluvium
Altitude range
(c. 700 m. in our area).
700
700
Distribution
Zambia W Zambezi R., 6·5 km. N. of Kalene Hill Mission, fl. & fr. 20.ix.1952, Angus 497 (FHO; K).Zambia N Pansa R., 9° 30’S, 30° 30’E, fr. 6.x.1949, Bullock 1153 (K; SRGH).
Distribution (external)
Angola
southern Congo
Notes
The combination of paniculate or pseudumbellate inflorescence and serrulate leaf-margins distinguishes O.welwitschii from all other species of Sect. Calophyllae except O.leptoneura Gilg (O.vanderystii De Wild.), from the Congo and Ubangi, which has smaller flowers but may not be specifically distinct.

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