Leguminosae Caes

Guild: u

Life form: small tree Max. height: 10 m (herbarium) Max. diameter: data unavailable Leaf: alternate, paripinnately compound, 10-16 leaflets, ovate to asymmetric, nanophyll (0.9-1.2 x 2-3 cm), entire, coriaceous, rachis with small scalelike glands close to and above leaflets, and with hairs red brown and curly Inflorescence: axillary, unbranched (raceme), densely pubescent, branching racemes from the axils of very young and small leaves Flower: small; corolla dark-red; fragrant Fruit: dry dehiscent (pod), rhomboid to oblong (0.1 x 2.5 cm) (only young pods seen), with two distinct longitudinal veins Seed: data unavailable

Distribution

Continent: Upper Guinea endemic Upper Guinea: Liberia, Côte d'Ivoire Distribution type: present in 3 30' cells Forest type: wet forest

Habitat

A rare species of which few collections are known. It is found near the coast, or near rivers (herbarium).

Phenology

Data sources

FWTA, Oldeman (1964), Savill & Fox (1967), Lock (1989), Hawthorne & Jongkind (2004)

Data sources

FWTA, Oldeman (1964), Savill & Fox (1967), Lock (1989), Hawthorne & Jongkind (2004)

10°00'

9°30'

9°00'

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J°00'

7°30'

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Open (n)

| Altitude

River

Coast

Mean Annual Rainfall

Soil CMK

Soil WHC

>500m

<2km

<5km

D

M

W

VW

L

M

H

L

M

H

D.e.

4

0 (1)

0

50

50

0

0

50

50

0

100

0

50

0

0

All

1146333

37

4

39

7

37

29

24

10

6

69

25

36

13

39

Didelotia idae Oldeman, de Wit & J.Léonard Leguminosae-Caes.

Description

Guild: sb

Life form: large tree Max. height: 45 m (Voorhoeve 1965) Max. diameter: 120 cm (Voorhoeve 1965) Leaf: alternate, simple, narrowly ovate, microphyll (1.5-6 x 2-10 cm), entire, coriaceous, twigs and nerves hairy, new leaves red, the leaves tend to grow in two rows along the slender twigs Inflorescence: axillary or terminal, branched, pendant, densely hairy

Flower: small; corolla purplish red; with long stamens

Fruit: dry dehiscent (pod), inside of the valves papillate (4 x 11 cm), yellowish brown; 3 seeds Seed: disc-shaped, large (1.4 x 1.8 cm), dark brown, smooth

Other: the slash is red fibrous with a reddish and sticky exudate. An unbuttressed tree with a wood density of 0.64 g/cm3.

Distribution

Continent: Upper Guinea endemic

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

Ghana

Distribution type: continuous, widespread, present in 12 30' cells, distribution range is 1034 km, Red List species (lower risk)

Forest type: wet evergreen forest, coastal thicket. It is gregarious in parts of Sierra Leone, associated with Brachystegia leonensis and Heritiera utilis (Fox 1968). In Liberia, it grows scattered throughout the evergreen forests, often in the single dominant forests of Tetraberlinia tubmaniana (Voorhoeve 1965). In Ghana, it is rare (Hawthorne 1995a).

Habitat

Species occurrence increases with rainfall to reach an optimum around 2600 mm/yr (logistic regression analysis, Chi2 test). In Liberia, it is associated with evergreen forests growing on either flat valleys or steep rocky slopes but never on marshy soil (Voorhoeve 1965). In Sierra Leone, the species does not occur near swamps or water courses (Savill & Fox 1967). However, in Ghana, where it is a rare species, it seems to be found mainly on riverbanks and wet places of evergreen forests (Hawthorne 1995a, Hawthorne & Jongkind 2004).

Regeneration

It has a phanerocotylar epigeal reserve seedling type (cf. Voorhoeve 1965). Seedlings are prolific after a seed year, and seem capable of withstanding the dense shade (Savill & Fox 1967).

Phenology

Deciduousness: evergreen Timing: flowering does not occur annually (Savill & Fox 1967); fruiting period from October to November (Liberia, Voorhoeve 1965)

Uses

Timber species (Voorhoeve 1965).

Data sources

Oldeman (1964), Voorhoeve (1965), Savill & Fox (1967), Fox (1968), Lock (1989), Hawthorne (1995a), IUCN Red List (2000), Hawthorne & Jongkind (2004)

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