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(Last Modified On 5/13/2013)
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(Last Modified On 5/13/2013)
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Species
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Tectona grandis L. f.
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PlaceOfPublication
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Suppl. 151. 1781.-FIG. 12.
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Synonym
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Tectona theka Lour., FM. Cochinch., ed. 1. 137. 1790. Theka grandis (L. f.) Lam., Illustr. 2: 111. 1793.
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Description
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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-
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Habit
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Tree
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Description
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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.
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Distribution
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Native to the tropics of southern Asiatic and Malayasia, especially abundant in the mixed forests of India, Burma, Thailand, and Malaya.
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Note
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The species is widely cultivated for its timber and as specimen trees else- where.
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Common
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Teak
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Specimen
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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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