Gymnostemon zaizou

Gymnostemon zaizou


Simaroubaceae


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Liberia (likely to occur)


IUCN Red-List

Vulnerable


Synonyms

-


Author (Species)

Aubréville & Pellegrin


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

FWTA 1: 692


Vouchers

-


Common Name(s)

Not Known


Notes

A tall tree resembling in habit an Entandrophragma, with its tufted leaves at the end of the branches. Stem with heavy root swellings at the base but no buttresses; bark smooth or longitudinally fissured in old specimens. Slash thick, brittle, yellowish brown, exuding some resin. Leaves paripinnate; sun-leaves 3 – 6 jugate with leathery, acuminate leaflets, asymmetric at the base; shade-leaves with more pairs of leaflets, more papery, less asymmetric. Fine glandular points near the tip of the leaf above. Fruits big, rounded, ± 10 x 8 cm, on a very thick stalk, with a grey, pustulate surface, containing one big seed. Tree not yet recorded from Liberia but present in Ivory Coast.

Afzelia africana

Afzelia africana


Leguminosae Caes


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Liberia (likely to occur)


IUCN Red-List

Vulnerable


Synonyms

-


Author (Species)

Sm.


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

FWTA 1: 459


Vouchers

-


Common Name(s)

Not Known


Notes

Large tree with low, spreading heavy branches; dry forests or the savanna region, most likely not in Liberia. The pod is straight. Note the thickened margin: marginal nerve. See also PROTA database.

Nauclea diderrichii

Nauclea diderrichii


Rubiaceae


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Liberia


IUCN Red-List

Vulnerable


Synonyms

Nauclea trillesii


Author (Species)

(De Wild. & Th.Dur.) Merrill


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

FWTA 2: 164; FTEA Rubiaceae: 441


Vouchers

Versteegh 780 (WAG); de Wilde 3690 (WAG)


Common Name(s)

Gluh (Gio) Dotue (Krahn) Kusia (Liberian english/ local name/ trade name) winyeelen (Mano)


Notes

Can grow into a dominant tree of the rainforest, up to 50 m tall and 150 cm Ø, preferring light, well-drained soils; regeneration common on open sites. It is initialy a very fast growing species. Bark thick, scaly; slash yellowish brown. See also PROTA database. Syn.: Nauclea trillesii, Sarcocephalus diderichii.

Cola reticulata

Cola reticulata


Sterculiaceae


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Upper Guinean Forest


IUCN Red-List

Vulnerable


Synonyms

-


Author (Species)

A.Chevalier


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

FWTA 1: 329; Flore Mt Nimba 1: 418


Vouchers

Jongkind 6511 (WAG); Voorhoeve 745 (WAG)


Common Name(s)

Not Known


Notes

Treelet to 10 m high and 10 cm Ø; common on mountains or rocky hills in the semi deciduous forest zone. Slash yellow, stringy. Fruit formed by a few free sessile, pointed, velvety carpels of about 3 cm long. Leaf 6 – 16 x 2 – 6 cm, cuneate at base, with 6 – 7 pairs of laterals, a darker venation above but a yellowish venation beneath. Young twigs very angular. Young parts with stellate hairs; petioles short on flowering twigs, longer on vegetative twigs.

Hallea ledermannii

Hallea ledermannii


Rubiaceae


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Liberia


IUCN Red-List

Vulnerable


Synonyms

Hallea ciliata; Mitragyna ciliata


Author (Species)

(K.Krause) Verdcourt


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

Kew Bull. 40: 508


Vouchers

Bos 2645 (BR, K, WAG); Jongkind 5385 (WAG)


Common Name(s)

Abura (Sapo)


Notes

A gregarious, fairly soft-wooded tree of swampy areas in the evergreen and deciduous forest zone; can grow into a tree of 35 m and 100 cm Ø. Slash thick, soft, fibrous-granular, pink turning brown; often with “knee roots” (pneumatophores). Leaves big, simple, opposite, broadly ovate or nearly round; interpetiolar stipules type 4; nerves ± scalariform. See also PROTA database. Syn.: Hallea ciliata/Mitragyna ciliata

Cryptosepalum tetraphyllum

Cryptosepalum tetraphyllum


Leguminosae Caes


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Upper Guinean Forest


IUCN Red-List

Vulnerable


Synonyms

-


Author (Species)

(Hooker f.) Bentham


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

FWTA 1: 480


Vouchers

Leeuwenberg 4926 (WAG); Voorhoeve 847 (WAG


Common Name(s)

Gweh (Gio) african pine (Liberian english/ local name/ trade name)


Notes

A common tree in wet and drier high forest, to 30 m high and 80 cm Ø, often in company of Tetraberlinia. In drier regions becoming more shrubby, growing along streams but also forming gregarious stands on rocky sites. The base of the tree has sharp root spurs, or rounded claws, rarely small buttresses up to 75 cm. Bark on the buttresses conspicuously transversely striate. Bark on the fairly straight stem smooth, grey-greenish, superficially cracked, slightly horizontally striate-lenticellate. Slash hard fibrous, pale pink to pinkish red, slowly exuding a brown, sticky gum, used locally as a cosmetic. Leaves paripinnate with only 4 leaflets, the lower pair small, the upper pair falcate. New leaves in November bright red and glossy. Twigs with the pretty, small white flowers with their dark purple anthers often found under the tree at the time of flowering, March – July. Not to be confused with Hymenostegia afzelii, which has a winged rachis. See also PROTA database.

Garcinia afzelii

Garcinia afzelii


Guttiferae


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Liberia


IUCN Red-List

Vulnerable


Synonyms

-


Author (Species)

Engler


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

FWTA 1: 295; Flore Mt Nimba 1: 391


Vouchers

Jongkind 6304 (WAG);


Common Name(s)

Not Known


Notes

Small to medium sized tree of dry forests, usually on wet soils. Leaves with the main laterals closely parallel and resin ducts as thin black lines more ascending than the laterals. Laterals joining a sub-marginal nerve. Slash creamy, brittle, with some viscid or yellowish exudate. Fruit ± spherical, about 2.5 cm Ø. Roots are used to chew on and to clean teeth.

Croton aubrevillei

Croton aubrevillei


Euphorbiaceae


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Upper Guinean Forest


IUCN Red-List

Vulnerable


Synonyms

-


Author (Species)

J.Léonard


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

BJBB 28: 113; Flore Mt Nimba 1: 465


Vouchers

Adam 20186 (K); Voorhoeve 161 (WAG)


Common Name(s)

Not Known


Notes

Small to medium sized tree, up to 80 cm diam., in older secondary formations; older trees have a swollen base; the wood is hard, yellowish. Leaves simple, alternate, ± whorled, whitish beneath, pair of stalked glands at base of blade; See also PROTA database.

Entandrophragma cylindricum

Entandrophragma cylindricum


Meliaceae


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Liberia


IUCN Red-List

Vulnerable


Synonyms

-


Author (Species)

(Sprague) Sprague


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

FWTA 1: 701; Voorhoeve, 1979: 249


Vouchers

Jongkind 7228 (WAG); Voorhoeve 195 (WAG)


Common Name(s)

Not Known


Notes

A tall tree most common in the moist semi-deciduous forest, rarely in the rainforest, to 50 m high and 180 cm Ø but usually around 80 cm Ø. Base variable, swollen with heavy root swellings, root spurs, low buttresses or occasionally well-developed buttresses, especially on steeper slopes. The bark of younger specimens has often a zigzag pattern of smooth grey strips, alternating with rough, lenticellate brown bark. Slash brittle-fibrous outside, pinkish light brown, soon turning darker on exposure; it has a strong cedar scent and straight ripple marks. Other trees with this cedar scent, Leplaea, Turraeanthus, Beilschmiedia, have no ripple marks. Younger trees with paler strips of dilatation tissue under the rough bark zones. Fruit capsule 6 – 10 cm long, purplish black, opening simultaneously from the top and the base with 5 valves. Pinnate leaves clustered; opposite leaflets slightly asymmetric at base. See also PROTA database.

Uvariodendron occidentale

Uvariodendron occidentale


Annonaceae


Habit

Tree


Fern

No


Predominant Habitat

Forest


Geographic Distribution

Liberia (likely to occur)


IUCN Red-List

Vulnerable


Synonyms

Uvariodendron mirabile


Author (Species)

Le Thomas


Rank

-


Taxon

-


Author (Sub Species/Variant)

-


Literature

Adansonia sér. 2, 7: 251


Vouchers

-


Common Name(s)

Not Known


Notes

Small tree, to 10 m tall and 15 cm Ø, of new soil or river borders. Bark corky on the outside; slash with lighter and darker brown streak, ‘netted’, fragrant. Big leaves of 20 – 30 x 5 – 10 cm, with a stout, canaliculate petiole. Flowers and fruits on stem and branches; flowers yellow with purple dots. Fruit in bundles of free carpels of about 5 x 2 cm, each carpel with several seeds; in drier forest types. Syn.: Uvariodendron mirabile.