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Alantsilodendron villosum (R.Vig.) Villiers

Protologue  
 Bull. Mus. natl. Hist. nat., sect. B, Adansonia 16: 70 (1994).
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Family  
 Mimosaceae (Leguminosae - Mimosoideae)
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Synonyms  
 Dichrostachys villosa R.Vig. (1949).
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Vernacular names  
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Origin and geographic distribution  
 Alantsilodendron villosum is endemic to northern Madagascar.
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Uses  
 The stems are used for posts in house construction.
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Botany  
 Small tree; young branches glabrous, with lenticels. Leaves alternate but clustered at the apex of short lateral shoots, bipinnately compound with 13–40 pairs of pinnae, these opposite; stipules densely crowded along short shoots, narrowly ovate, 7–12 mm long; petiole 8–13 mm long, rachis 3.5–8 cm long, grooved, woolly hairy and with glands between the pinnae; leaflets 40–45 pairs per pinna, opposite, sessile, elliptical to oblong, up to 1.5 mm × 0.5 mm, truncate to rounded and asymmetrical at base and obtuse at apex, glabrous. Inflorescence an axillary head, produced solitary or in clusters on short shoots; peduncle 1.5–2.5 cm long, woolly hairy. Flowers bisexual, regular, 5-merous, sessile, white; calyx saucer-shaped, c. 1.5 mm long, woolly hairy in lower part, with short lobes; petals connate into a tube 1.5–2 mm long, lobes c. 1 mm long, acute; stamens 10, free, 4.5–6.5 mm long, anthers with a gland at apex; ovary superior, sessile, ellipsoid, woolly hairy, style c. 1.5 mm long. Fruit a linear-oblong pod 6–8.5 cm × 0.5–1 cm, with thickened and sharply ridged margins, glabrous to shortly hairy, red-brown, dehiscent with 2 woody valves.
Alantsilodendron comprises 9 species, most of them restricted to southern Madagascar. It is closely related to Dichrostachys and Gagnebina. Alantsilodendron villosum flowers when new leaves develop.
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Description  
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Ecology  
 Alantsilodendron villosum occurs in dry deciduous woodland on sandy soils.
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Genetic resources and breeding  
 Alantsilodendron villosum has a limited distribution and may become easily endangered by habitat destruction.
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Prospects  
 Alantsilodendron villosum will remain of minor importance because of its small size and limited distribution.
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Major references  
 • du Puy, D.J., Labat, J.N., Rabevohitra, R., Villiers, J.-F., Bosser, J. & Moat, J., 2002. The Leguminosae of Madagascar. Royal Botanic Gardens, Kew, Richmond, United Kingdom. 750 pp.
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Other references  
 • Villiers, J.-F., 1994. Alantsilodendron Villiers, genre nouveau de Leguminosae-Mimosoideae de Madagascar. Bulletin du Muséum National d’Histoire Naturelle, 4e série, 16, section B, Adansonia (1): 65–70.
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Author(s)  
 
R.H.M.J. Lemmens
PROTA Network Office Europe, Wageningen University, P.O. Box 341, 6700 AH Wageningen, Netherlands


Editors  
 
D. Louppe
CIRAD, Département Environnements et Sociétés, Cirad es-dir, Campus international de Baillarguet, TA C-DIR / B (Bât. C, Bur. 113), 34398 Montpellier Cedex 5, France
A.A. Oteng-Amoako
Forestry Research Institute of Ghana (FORIG), University P.O. Box 63, KNUST, Kumasi, Ghana
M. Brink
PROTA Network Office Europe, Wageningen University, P.O. Box 341, 6700 AH Wageningen, Netherlands
General editors  
 
R.H.M.J. Lemmens
PROTA Network Office Europe, Wageningen University, P.O. Box 341, 6700 AH Wageningen, Netherlands
L.P.A. Oyen
PROTA Network Office Europe, Wageningen University, P.O. Box 341, 6700 AH Wageningen, Netherlands
J.R. Cobbinah
Forestry Research Institute of Ghana (FORIG), University P.O. Box 63, KNUST, Kumasi, Ghana
Correct citation of this article  
 Lemmens, R.H.M.J., 2006. Alantsilodendron villosum (R.Vig.) Villiers. [Internet] Record from PROTA4U. Louppe, D., Oteng-Amoako, A.A. & Brink, M. (Editors). PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale), Wageningen, Netherlands. <http://www.prota4u.org/search.asp>. Accessed .



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General importance
Geographic coverage Africa
Geographic coverage World
Timber use
Conservation status


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