Strychnos camptoneura

Strychnos camptoneura
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Loganiaceae
Genus: Strychnos
Species:
S. camptoneura
Binomial name
Strychnos camptoneura
Synonyms

Scyphostrychnos psittaconyx P.A.Duvign.
Scyphostrychnos talbotii S.Moore

Strychnos camptoneura is a species of plant in the Loganiaceae family. It is native to Camaroon, the Central African Republic, the Democratic Republic of the Congo, Gabon, Ivory Coast, Liberia, Nigeria, the Republic of the Congo and Zaire.[1]

Description

It is a woody climbing plant reaching 45 meters in height but totaling up to 120 meters in length and 2-25 centimeters in diameter. Its bark is dark brown with large lenticels. Its hard wood is yellow to orange-brown. Its branches are small, hairless, and lack lenticels. Its tendrils occur in groups of 1-3 pairs. Its hairless petioles are 7-17 millimeters long. Its hairless, slightly leathery to leathery, elliptical to oval leaves are 6-31 X 3-12 centimeters with pointed to tapering tips and wedge-shaped or rounded bases. The upper surface of the leaves are shiny. The basal pair of secondary veins in the leaf are larger than the others. Its inflorescences have 5 flowers in axillary, or sometimes terminal positions. The flowers are on hairless, green pedicels attached to hairless, green peduncles. Its pale green, rounded, hairless sepals are, 2–3.5 millimeters long and fused at their base. Its white to yellow corollas are 5-lobed. The triangular to oval lobes are 4-6 by 1.7-3 millimeters with pointed tips. The base of the corollas are 4-6 millimeter long tubes. The outer surfaces of the corollas are hairless and the inner surfaces have fine hairs at their tips. Its stamen are attached at the throat of the corolla and have hairless filaments and narrow, oblong anthers that are 2.2-3 by 0.6-0.7 millimeters. Its hairless carpels are 8-9 millimeters long. Its oval ovaries are 3-4 x 2-2.5 millimeters with two compartments. Each compartment has more than 50 ovules. Its hard, elliptical to oval, yellow fruit are 6.5-20 by 6-13.5 centimeters with pointed or rounded tips. The fruit have two compartments each containing orange pulp and 2-112 seeds. The hairless flattened, convex, oval to oblong seeds are 25-50 by 20-40 by 3-6 millimeters. The seeds have irregularly shaped wings that are 1-6 millimeter wide.[2][3][4]

Habitat and distribution

It has been observed growing in rain forests at elevations of 0 to 700 meters.[3][4]

References

  1. ^ "Strychnos camptoneura Gilg & Busse". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved June 23, 2020.
  2. ^ Engler, A.; Gilg, E.; Busse, W. (1905). "Beiträge zur Flora von Afrika. XXVII. Weitere Beiträge zur Keuutnis der Gattung Stryclinos" [Contributions to the flora of Africa. XXVII. Further contributions to the genus Stryclinos.]. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie (in German and Latin). 36: 93–94. Retrieved June 23, 2020.
  3. ^ a b Leeuwenberg, Antonius Josephus Maria (1972). Loganiacées : avec compléments concernant des espèces camerounaises [Loganiaceae: with additions concerning Cameroonian species]. Flore d Gabon (in French and Latin). Vol. 19. Paris: Muséum National D'Histoire Naturelle, Laboratorie de Phanérogamie. pp. 66–67 and Plate 21.
  4. ^ a b Leeuwenberg, A.J.M. (1962). "The loganiaceae of Africa IV. Strychnos I.". Acta Botanica Neerlandica. 11 (1): 47–50. doi:10.1111/j.1438-8677.1962.tb00074.x.