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Compilation
Psydrax locuples

2 Images see all

Isotype of Plectronia locuples K. Schum. [family RUBIACEAE]
Type of Plectronia locuples K.Schum. [family RUBIACEAE]
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Name

Identification
Psydrax locuples (K.Schum.) Bridson [family RUBIACEAE ] (stored under name); Verified by Bridson, D., Plectronia locuples K.Schum. [family RUBIACEAE ] Canthium unrecorded unrecorded [family RUBIACEAE ]
Related name
  • Plectronia locuples
  • Canthium unrecorded
  • Psydrax locuples

Flora

Entry for Psydrax locuples K. Schum. Bridson [family RUBIACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 5, Part 2, (1998) Author: D. Bridson
Names
Psydrax locuples K. Schum. Bridson [family RUBIACEAE], in Kew Bull. 40: 708 (1985). —von Breitenbach in J. Dendrol. 5: 88, fig. on p. 90 (1985). —K. Coates Palgrave, Trees Southern Africa, ed. 3, rev.: 16k of appendix (1988). —Pooley, Trees of Natal, Zululand & Transkei: 476, figs. (1993). Type: Mozambique, Delagoa Bay, Monteiro 52 (B†, holotype; K).
Plectronia locuples K. Schum. [family RUBIACEAE], in Bot. Jahrb. Syst. 28: 75 (1899). —Schinz in Mém. Herb. Boissier, No. 10: 68 (1900).
Canthium locuples K. Schum. Codd [family RUBIACEAE], in Kirkia 1: 108 (1961), pro parte, excl. P. fragrantissima K. Schum. —Cavaco in Portugaliae Acta Biol., Sér. B, Sist. 11: 219 (1972). —Ross, Fl. Natal: 335 (1973). —Palmer & Pitman, Trees Southern Africa 3: 2103, fig. on 2104 (1973), pro parte. —Gibson, Wild Fls. Natal: 7, pl. 102 (1975). —Moll, Trees of Natal: 259 (1981). —K. Coates Palgrave, Trees Southern Africa, ed. 3, rev.: 883 & page 16k of appendix (1988).
Information
Shrub 2.75–5 m tall; very young stems puberulous or pubescent; bark fawn-coloured or almost white.Leaf blades 2–4.7 × 0.9–2.7 cm, elliptic or rarely oblong-elliptic or broadly elliptic, acute to obtuse at apex, acute at base, coriaceous, shiny on upper surface, glabrous; lateral nerves in 2–3 main pairs; tertiary nerves obscure; domatia present as glabrous or ciliate pockets; petioles 1–3 mm long, glabrous or puberulous; stipules 2–3 mm long, truncate to triangular at their base with a linear decurrent lobe, often puberulous outside.Flowers 4-merous, borne in 6–30-flowered compact pedunculate corymbs; peduncles 3–9 mm long, puberulous; pedicels 2–6 mm long, puberulous; bracteoles inconspicuous.Calyx tube 1 mm long, broader than long, glabrous; limb 0.5 mm long, irregularly dentate, ciliate.Corolla white or greenish-white; tube 1.5–2.5 mm long, pubescent at throat; deflexed hairs not restricted to a definite ring; lobes 2–2.5 × 1.5 mm, oblong, acute.Anthers reflexed.Style 4.5–7 mm long; pollen presenter 1 × 0.5 mm long; disk glabrous.Fruit 4.5–6.5 × 6–9 mm, broadly oblong in outline, not or scarcely indented at apex.Pyrenes 4.5–5.5 × 3–4.5 × 2.5 mm, ± ellipsoid with ventral face flattened, rugulose.
Habitat
On coastal plains or dunes, in woodlands and dense scrub, often on sandy soil or on sandstone outcrops
Altitude range
0–200 m.
200
0
Distribution
Mozambique M between Costa do Sol and Marracuene, Muntanhane, young fr. 13.xi.1960, Balsinhas 247 (BM; COI; K; PRE).Mozambique GI Gaza Prov., Macia, Nhangone (S. Martinho do Bilene), fl. 8.x.1958, Barbosa 8337 (K).
Distribution (external)
South Africa (KwaZulu-Natal)
Notes
One fruiting specimen from Xai-Xai (de Koning 7801) has the leaves narrower than typical for this species. A closely related species (P. faulkneri Bridson) from Tanzania and Kenya has juvenile leaves which are small, resembling those of Buxus sempervirens L., and quite unlike the adult leaves. It is possible that this phenomenon may also occur in P. locuples, but field observations and correlated specimens are still required. One gathering from Mozambique, Inhaca Island (Mauve & Verdoorn 86 (PRE)) and several sheets from KwaZulu-Natal could well represent juvenile foliage forms of this species.

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