Psychotria schweinfurthii Hiern

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 3: 210 (1877)
This species is accepted
The native range of this species is Tropical Africa. It is a subshrub or shrub and grows primarily in the seasonally dry tropical biome.

Descriptions

Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

Morphology General Habit
Shrub or subshrub 0.4–2 m. tall, the young stems ± bifariously pubescent with ferruginous hairs but at length glabrous.
Morphology Leaves
Leaf-blades elliptic or oblong-elliptic to elliptic-lanceolate, 4–20 cm. long, 1.5–7 cm. wide, narrowly acuminate at the apex, cuneate at the base, glabrous above and beneath save for pubescence on the nerves beneath or rarely pubescent all over and sometimes papillate on venation, thin, often drying dark green or grey-green above and reddish brown beneath, in life said to be dark and glossy above and almost silvery beneath; nodules absent and domatia inconspicuous; petiole 0.1–1.2 cm. long, glabrous or pubescent; stipules narrowly to broadly obovate, 1–1.7 cm. long, bilobed, the lobes usually narrowly lanceolate, 5–8 mm. long, the margins fringed with ferruginous hairs and base of stipule usually hairy outside, deciduous.
Morphology Reproductive morphology Flowers
Flowers heterostylous, 5-merous, in much-branched ± pyramidal panicles 3–13 cm. long; peduncle 2–8 cm. long, pubescent, sometimes only bifariously; secondary branches 0.3–2 cm. long, similarly pubescent or glabrous; pedicels 0–2.5 cm. long, glabrous; lowermost bracts elliptic to oblong-lanceolate or linear-elliptic, up to 2 cm. long, 5 mm. wide, acuminate and entire or 3-toothed with central tooth the longest, glabrous save for marginal hairs; other bracts smaller.
Morphology Reproductive morphology Flowers Calyx
Calyx-tube ± campanulate, 0.7 mm. long, glabrous; limb cupuliform, 0.5–0.7 mm. long, glabrous, teeth irregularly triangular, 0.25 mm. long.
Morphology General Buds
Buds distinctly 5-horned at the apex, the horns 0.3–1 mm. long.
Morphology Reproductive morphology Flowers Corolla
Corolla usually glabrous outside, white; tube 3.5–6 mm. long; lobes ovate-oblong, 2–2.5 mm. long, 0.9 mm. wide, conspicuously horned.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens with filaments 1.7–3.5 mm. long in short-styled flowers, 0.2 mm. long in long-styled flowers.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style 3–4.5 mm. long in short-styled flowers, 5.5–7.5 mm. long in long-styled flowers; stigma-lobes 0.75–1.5 mm. long.
Morphology Reproductive morphology Fruits
Drupes red or said to be blue turning red and drying black, with 2 pyrenes, subglobose or ± ellipsoid, 4–5 mm. in diameter, glabrous, strongly grooved in the dry state; pyrenes rhaphide-packed, semiglobose or semi-ellipsoid, 3.8–4.5 mm. long, 3.5–3.8 mm. wide, 2 mm. thick, the ventral face slightly concave with 2 shallow grooves, the dorsal face sharply 6-ribbed.
Morphology Reproductive morphology Seeds
Seeds red, semiglobose, 3 mm. long and wide, 1.8 mm. thick, the ventral face slightly concave with 2 shallow grooves, thickened at the middle, dorsal face obtusely 4-ribbed; albumen not ruminate.
Habitat
Secondary and primary evergreen forest, Celtis, Holoptelea forest, near seasonal swamps and riverine grassland; 885–1260 m.
Distribution
U1 U2 U3
[FTEA]

Rubiaceae, F. N. Hepper & R. W. J. Keay. Flora of West Tropical Africa 2. 1963

Morphology General Habit
Small shrub up to 4 or 5 ft. high
Morphology Reproductive morphology Flowers
Flowers white, fragrant
Morphology Reproductive morphology Fruits
Fruits red
Ecology
In forest and in savanna woodland.
[FWTA]

Sources

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Flora of West Tropical Africa

    • Flora of West Tropical Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0