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Project Name Data (Last Modified On 5/13/2013)
 

Flora Data (Last Modified On 5/13/2013)
Species Tectona grandis L. f.
PlaceOfPublication Suppl. 151. 1781.-FIG. 12.
Synonym Tectona theka Lour., FM. Cochinch., ed. 1. 137. 1790. Theka grandis (L. f.) Lam., Illustr. 2: 111. 1793.
Description Tree to 50 m tall; branches and branchlets stout, 4-sided, with large, quad- ran.gular pith, the younger parts usually with obtuse angles and drying more or less sulcate between the angles, densely furfuraceous-tomentose with cinereous or ochraceous tomentum; nodes distinctly annulate with usually a corky layer and denser tomentum. Leaves drooping, deciduous, with a clasping base; firmly chartaceous, broadly elliptic, (11-)23-55(-85) cm long (to 1 m on turoins) but (6-)22-37(-50) cm wide, apically acute or short-acuminate, entire or repand- denticulate, basally abruptly acute or long-acuminate and prolonged into the alate petiole or clasping at the base, dark-green and shiny above, much lighter and not shiny beneath, densely squamose and rugose or bullate above, glabrescent and becoming smooth, densely furfuraceous-tomentose beneath with ochraceous or reddish to brownish hairs and densely resinous-punctate; petioles short or wanting, more or less margined or alate, densely ochraceous-furfuraceous. Inflorescences in the uppermost leaf-axils and terminal, paniculate, massive, the terminal panicles often many decimeters long and wide, but mostly ca. 40 cm long and 35 cm wide with distant, opposite, widely divaricate, many-branched, many-flowered cymes, densely cinereous- or ochraceous-furfuraceous throughout; peduncles and sym-
Habit Tree
Description podia continuous with the branchlets and similar in texture, color and pubescence, often elongate; pedicels stoutish or slender, 1-4 mm long, furfuraceous; a pair of large, foliaceous bracts subtending each pair of cymes, resembling the leaves but smaller; bractlets numerous, lanceolate-linear, to 15 mm long and 4 mm wide at the base, sessile, ochraceous-furfuraceous, apically attenuate; prophylls oblong or linear-lanceolate, to 5 mm long and 1 mm wide. Flowers with the calyx light- yellow or light-green, 3-4.5 mm long and 3-3.5 mm wide, densely furfuraceous- tomentose, 5-7-toothed or -lobed,. the teeth ovate or ovate-oblong, 1.5-2.5 mm long, often reflexed, obtuse; corolla white, sometimes rosy on the lobes, short- hypocrateriform, glabrous on both surfaces, the tube broadly cylindric, 1.5-3 mm long, ca. 1.5 mm wide, the limb 5-7-parted, the lobes obovate-elliptic, 2.5-3 mm long and ca. 2.3 mm wide, apically rounded, overlapping, erect or reflexed, in- serted ca. 1.3 mm or more below the mouth of the corolla-tube, the filaments white, 2.5-4 mm long, glabrous, ampliate and flattened below, the anthers yellow, ovate or oblong; style white, 3.6-5.2 mm long, more or less pubescent with branched hairs, the ovary ovate or conic, 1.5-2 mm long, densely pubescent. Fruit subglobose or tetragonally flattened, to 1.5 cm long and wide, densely tomentose with irregularly branched light-brown or ochraceous hairs, umbilicate and 4-lobed at the apex; seeds oily; fruiting-calyx to 2.5 cm long and wide, chartaceous, light brown and brittle when dry, mostly irregularly plaited or crumpled and bladder-like.
Distribution Native to the tropics of southern Asiatic and Malayasia, especially abundant in the mixed forests of India, Burma, Thailand, and Malaya.
Note The species is widely cultivated for its timber and as specimen trees else- where.
Common Teak
Specimen CANAL ZONE: Miraflores Annex, Blum 682 (MO). Summit, Mell 8 (NY). Miraflores in cultivation, Moldenke 1231 (MEOW). Miraflores Lab near Locks, Tyson & Blum 2791 (MO). Low jungle near Miraflores Lock, Welch 19651 (MO).
 
 
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