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wild[[File:Map Alstonia congensis.gif|thumb|répartition en Afrique (sauvage)]][[File:Linedrawing Alstonia congensis.gif|thumb|1, part of branch with leaves; 2, inflorescence; 3, flower; 4, fruit; 5, seed Redrawn and adapted by Achmad Satiri Nurhaman]]

*''Alstonia gilletii'' De Wild. (1907).

*Alstonia, cheesewood, stool wood, pattern wood (En). *Emien (Fr). *Songati (Po).

*Small to medium-sized tree up to 15(–25) m tall, with latex; bole up to 30(–100) cm in diameter, fluted at the base or with steep buttresses; bark smooth or rough, usually with large lenticels, greyish or pale brown, inner bark creamy or pale yellow, with copious latex; crown layered. *Leaves in whorls of 4–6(–8), simple and entire; stipules absent; petiole up to 0.5 (–1) cm long, flattened and grooved above, with narrowly triangular colleters at base; blade obovate to spatulate, 8–26 cm × 3.5–11.5 cm, cuneate at base, rounded to shortly acuminate at apex, occasionally retuse, leathery, glabrous, many-veined with lateral veins joining near the margin. Inflorescence a terminal, compound, umbel-like cyme up to 25 cm long; peduncle 3.5–12 cm long, stout; bracts up to 2 mm long. *Flowers bisexual, regular, 5-merous, fragrant; pedicel ( 2–)3–5(–9) mm long; sepals up to 3 mm long, fused at base, glabrous but slightly pubescent at margins; corolla cream-coloured, pale yellow or pale pink, pubescent, with tube 4–7.5 mm long, widening near the end, lobes obliquely obovate, 4–10 mm long; stamens inserted in upper part of corolla tube, filaments c. 0.5 mm long, anthers up to 1.5 mm long; ovary superior, ovoid, glabrous or occasionally slightly pubescent, 2-celled, style 1–3.5 mm long, ending in a pistil head composed of a basal ring, a cylindrical central part and an elongate cleft stigmoid apical part. *Fruit composed of 2 linear follicles 20–45 cm long and 2–4 mm in diameter, glabrous, many-seeded. *Seeds oblong, flattened, 6–9 mm × 2–2.5 mm, brown, with long hairs up to 2 cm long on the ends.

{{right|(E. Ebanyenle, A.A. Oteng-Amoako & P. Baas)}}

Lemmens, R.H.M.J., 2005. '''Alstonia congensis''' Engl. [Internet] Record from PROTA4U. In: 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 {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}}.