Sherbournia Calycina

Description

Guild: u

Life form: large woody climber, climbing with recurved spines

Max. height: 35 m long

Max. diameter: data unavailable

Leaf: opposite, simple, elliptic, notophyll (3-6 x

6-11 cm), entire, herbaceous, slightly hairy on the nerves; with interpetiolar stipules

Inflorescence: axillary, solitary

Flower: small; 8-merous; pedicel pubescent

Fruit: fleshy (drupe), globose (2.5 cm in diameter), hard woody pericarp, rough, orange to red, covered with distinct muricate ridges and persistent calyx;

2-4 seeds

Seed: large (approx. 1.2 cm in diameter)

Distribution

Continent: Upper Guinea endemic Upper Guinea: Liberia

Distribution type: continuous, very local, present in 2 30' cells, distribution range is 6 km Forest type: wet evergreen forest

Habitat

It occurs around 500 m altitude (Robbrecht 1981a).

Data sources

Robbrecht (1981a,b), Hawthorne & Jongkind (2004)

Phenology

Sherbournia calycina (G.Don) Hua Rubiaceae

Guild: pi

Life form: large winding woody climber

Max. height: 50 m long, 10 m high (herbarium)

Max. diameter: data unavailable

Leaf: opposite, simple, elliptic, mesophyll (3-7 x

7-18 cm), entire, coriaceous, sometimes with red spots underneath; petiole first pubescent, thereafter glabrous; interpetiolar stipules

Inflorescence: axillary, solitary

Flower: large (tube 3 cm long); campanulate; large calyx lobes; corolla white to yellowish outside, pink to mauve inside; not fragrant

Fruit: fleshy, ovate to ellipsoid (2.5 x 3 cm), yellow to orange; with persistent calyx; many seeds

Distribution

Continent: Upper Guinea endemic

Upper Guinea: Guinea, Sierra Leone, Liberia, Côte d'Ivoire, Ghana, Togo

Distribution type: continuous, widespread, present in 48 30' cells, distribution range is 1530 km Forest type: wet evergreen forest, gallery forest, secondary forest, thickets

Habitat

Species occurrence increases with rainfall to reach an optimum around 2700 mm/yr (logistic regression analysis, Chi2 test). Commonly found in disturbed places (e.g. forest gaps and edges, severely logged forests, and often in secondary thickets along roadsides). However, it has also been recorded in dense rainforests. Often close to rivers (Chi2 test). Soils can be lateritic or sandy-clayish (herbarium).

Regeneration

Phenology

Deciduousness: probably deciduous Timing: flowering period from October to May; fruiting period from November to August (De Koning 1983)

It has a phanerocotylar epigeal foliaceous seedling type (cf. de Koning 1983).

Data sources

FWTA, De Koning (1983), Hawthorne & Jongkind (2004)

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