Toona sureni
(Blume) Merr., Interpr. Herb. Amboin. 305. 1917; Bahadur,
Monogr. Gen. Toona 129. 1988. Swietenia sureni Blume, Cat. Hort. Buitenzorg 27. 1823.
Cedrela febrifuga Blume in Verh. Batav. Genootsch. Kunsten 9: 135. 1823 & Bijdr. 180.
1825. Cedrela inodora Hassk., Hort. Bogor. 131. 1844. Toona febrifuga (Blume) M.
Roemer, Fam. Nat. Syn. Monogr. 1: 139. 1846. T. febrifuga (Blume) M. Roemer var.
cochinchinensis Pierre, Fl. For. Cochinch. t. 358. 1897. Cedrela celebica Koord. in Meded.
Pl. 19: 384. 1898. C. toona Roxb. ex Rottler var. latifolia C. DC. in Rec. Bot. Surv. India
3: 365. 1908. C. febrifuga Blume var. assamensis C.DC., l.c. 373. C. sureni (Blume) Burkill
in Gard. Bull. Straits Settlem. 5: 120. 1930. Toona ciliata M. Roemer var. latifolia (C.
DC.) Chandrab. in Biol. Mem. 2: 28. 1977.
Tree, 50 -
60 m tall; branchlets rather thick, densely pubescent when young, glabrous
afterwards, often dark-reddish with pale lenticels; bark ca 1 cm thick, rough with vertical
cracks, peeling off in oval flakes, red inside. Leaves 30 -
50 cm long; leaflets usually 6 - 15 pairs, opposite or subopposite, ovate-oblong, unequally oblique at base, entire along
margin, subobliquely acuminate at apex, 8 -
20 x 4.5 -
7.5 cm, coriaceous, glabrous of
nearly so above, sparingly pilose in axils of secondary nerves beneath, sometimes both
surfaces pubescent; secondary nerves 10 - 20 on each side; petiolules to 6 mm long
Panicles as long as leaves, puberulous. Flower buds globose, covered 3/4 by calyx. Calyx
cupulate, ca 1 mm long, 3-lobed; lobes rounded, glabrous or nearly so inside, ciliate along
margins. Petals 5, free, oblong-ovate, 4.5 -
5 x 1.5 -
2.5 mm, glabrous or puberulous ,
ciliate along margins. Filaments pilose; anthers shortly apiculate. Disk and ovary
densely hairy; style glabrous, occasionally curved in male flowers. Capsules obovate-
fusiform, 2.5 -
4.5 cm long, often lenticellate, thin or woody; seeds winged at both ends.
