Gonystylus augescens Ridl.

Species

Angiosperms > Malvales > Thymelaeaceae > Gonystylus

Characteristics

Small tree; branchlets dark brown, glabrous. Leaves broadly elliptic or elliptic-oblong, 16-29 by 8-14 cm; base rounded to somewhat cordate, more rarely very broadly cuneate; apex rounded and shortly cuspidate-acuminate; margin often strongly reflexed, almost revolute at the base, firmly coriaceous, i chestnut-brown when dry, darker below, glabrous except for the sparsely puberulous midrib below, minutely shagreened on both surfaces; nerves very conspicuous, rather crowded, widely spreading; petiole robust, 10-15 by 3-4 mm, minutely puberulous. Inflorescences up to 18 cm long, 2-2½ mm thick, with 2-3 branches, densely ochraceous-tomentellous at first, later glabrescent; scars of the fallen flowers and bracts forming a dense, regular, nodulose spiral [somewhat resembling that seen in the Icacinaceous Stemonurus corniculatus BECC. (Cantleya johorica RIDL.)], in 4 vertical rows, the successive members of each row being about 3-4(-8) mm apart. Bracts ovate-oblong, up to 7 by 2½ mm, cu-cullate, subsericeous, caducous. Pedicels 8-13 mm long, sericeous. Buds subglobose. Flowers (expanded) 7-9 mm diam. Sepals deltoid-ovate, 4-5 by 2-2½ mm, subobtuse, densely fulvo-seri-ceous. Petals c. 16, subulate, 3 mm, densely retrorse-setulose within, sparingly setulose or subglabrous without. Style pubescent. Fruit (immature) broadly lanceolate, 5½ by 2¼ cm, 3-valved, ± 6-ribbed, the locular ribs broad, rounded or slightly angled, the suturai ones narrow, traversed by a fine groove, and forming a shortly 3-winged apex to the fruit, minutely rugulose, glabrous but covered with a fine brownish meal; calyx persistent, scarcely enlarged. Seed (very immature) compressed, narrowly elliptic, 2¼ by ¾ cm, solitary in the fruit examined.
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Small tree; branchlets dark brown, glabrous. Leaves broadly elliptic or elliptic-oblong, 16-29 by 8-14 cm; base rounded to somewhat cordate, more rarely very broadly cuneate; apex rounded and shortly cuspidate-acuminate; margin often strongly reflexed, almost revolute at the base, firmly coriaceous, i chestnut-brown when dry, darker below, glabrous except for the sparsely puberulous midrib below, minutely shagreened on both surfaces; nerves very conspicuous, rather crowded, widely spreading; petiole robust, 10-15 by 3-4 mm, minutely puberulous. Inflorescences up to 18 cm long, 2-2½ mm thick, with 2-3 branches, densely ochraceous-tomentellous at first, later glabrescent; scars of the fallen flowers and bracts forming a dense, regular, nodulose spiral [somewhat resembling that seen in the Icacinaceous Stemonurus corniculatus BECC. (Cantleya johorica RIDL.)], in 4 vertical rows, the successive members of each row being about 3-4(-8) mm apart. Bracts ovate-oblong, up to 7 by 2½ mm, cu-cullate, subsericeous, caducous. Pedicels 8-13 mm long, sericeous. Buds subglobose. Flowers (expanded) 7-9 mm diam. Sepals deltoid-ovate, 4-5 by 2-2½ mm, subobtuse, densely fulvo-seri-ceous. Petals c. 16, subulate, 3 mm, densely retrorse-setulose within, sparingly setulose or subglabrous without. Style pubescent. Fruit (immature) broadly lanceolate, 5½ by 2¼ cm, 3-valved, ± 6-ribbed, the locular ribs broad, rounded or slightly angled, the suturai ones narrow, traversed by a fine groove, and forming a shortly 3-winged apex to the fruit, minutely rugulose, glabrous but covered with a fine brownish meal; calyx persistent, scarcely enlarged. Seed (very immature) compressed, narrowly elliptic, 2¼ by ¾ cm, solitary in the fruit examined.
Life form annual
Growth form tree
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Sexuality hermaphrodite
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Environment

Unknown; probably rain-forest at low altitudes; fl. Oct.-Jan.
More
Unknown; probably rain-forest at low altitudes; fl. Oct.-Jan.
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Hardiness (USDA) 9-12

Usage

Uses -
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Cultivation

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Distribution

Gonystylus augescens world distribution map, present in Malaysia

Conservation status

Gonystylus augescens threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:383600-1
WFO ID wfo-0000707214
COL ID 3GZYB
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Gonystylus augescens