Hopea papuana

• Interesting Facts
• Common Names
• Description
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Interesting Facts

Common Names

Description

Family Dipterocarpaceae

Trees , evergreen or semievergreen, rarely deciduous in dry season . Xylem with aromatic resin in intercellular resin canals. Branchlets with stipular scars , sometimes annular . Leaves simple , alternate; stipules persistent or caducous , large or small; leaf blade with lateral veins pinnate, margin entire or sinuate-crenate. Inflorescences few- or many-flowered, terminal or axillary racemes or panicles; flowers usually sweetly scented; bracts usually fugacious and minute, rarely persistent and large. Inflorescences, calyces, petals, ovary, and other parts usually with stellate , squamate , fascicled or free-standing hairs . Flowers bisexual , actinomorphic , contorted. Calyx lobes 5, free or united at base , imbricate in bud if not united. Petals 5, adnate or connate at base. Stamens (10-) 15 to many, free from or connate to petals; filaments usually dilated at base; anthers 2-celled, with 2 pollen sacs per cell (Chinese species) ; connective appendages aristate , filiform or stout. Ovary superior, rarely semi-inferior, slightly immersed in torus, usually 3-loculed, each locule 2-, rarely many ovuled; ovules pendulous, lateral or anatropous . Fruit usually nutlike, sometimes capsular and 3-valved, 1(to many) -seeded, with persistent, variously accrescent calyx of which 2 or more lobes are usually developed into lorate wings . Seed exalbuminous ; cotyledons fleshy , equal or unequal, applanate or folded or cerebriform , entire or laciniate ; radicle directed toward hilum , usually included between cotyledons.

About 17 genera and 550 species: tropical Africa, Asia, and South America (in Asia, most species and genera in NW Borneo) ; five genera and 12 species (one endemic, one introduced ) in China.[1]

Genus Hopea

Trees evergreen , of main canopy or understory , white resinous . Stipules caducous , small; leaf blade thinly leathery; lateral veins pinnate; tertiary veins scalariform (in Chinese species) [or subreticulate], margin entire. Flowers sessile or shortly pedicellate , in lax panicles of unilateral racemes ; bracts early caducuous, linear . Calyx segments imbricate. Exposed parts of petals usually pubescent in bud. Stamens (10-) 15, slightly connate and adnate to petals; anthers ovoid , small, subequal ; connectival appendages aristate or filiform . Ovary ovoid, with prominent filiform style, or hourglass-shaped, with short tapering style. Fruit ovoid or globose ; pericarp usually thin, waxy; 1-seeded, closely surrounded by thickened base of calyx segments; 2 fruit sepals winglike, linear, or all orbicular or ovate , subequal.

About 100 species: Cambodia, China, S India, Indonesia, Laos, Malaysia, Myanmar, Papua New Guinea, Philippines, Thailand, Vietnam; four species (one endemic) in China.

These trees are a source of a damar resin used in varnishes. The wood is finely grained, very durable, and used for making boats , bridges , and furniture.[2]

Taxonomy

Notes

Publishing author : Diels Publication : Bot. Jahrb. Syst. lvii. 461 (1922)

Place of publication: Bot. Jahrb. Syst. 57:461. 1922

Name verified on 11-Mar-1996 by ARS Systematic Botanists. Last updated: 26-Feb-1999

Similar Species

Members of the genus Hopea

ZipcodeZoo has pages for 3 species, subspecies, varieties, forms, and cultivars in this genus:

H. micrantha (Hopea) · H. papuana (Light Hopea) · H. tinctoria (Common Sweetleaf)

More Info

• Search for Pictures: images.google.com
• Search for Scholarly Articles: Google Scholar
• Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
• Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books

Further Reading

• Flora Malesiana. general editor, C.G.G.J. van Steenis. Djakarta: Noordhoff-Kolff, 1950- url p. 395, p. 419.
• Tong Shaoquan & Tao Gouda. 1990. Dipterocarpaceae. In: Li Hsiwen, ed., Fl. Reipubl. Popularis Sin. 50(2): 113-131.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 11, 2012.

Data Sources

Accessed through GBIF Data Portal December 04, 2007:

• Australian National Herbarium
• , Australian National Herbarium
• National Herbarium of New South Wales, Plants of Papua New Guinea

Identifiers

• Biodiversity Heritage Library NamebankID: 5882564
• Global Biodiversity Information Facility Taxonkey: 15453300
• Globally Unique Identifier: urn:lsid:ipni.org:names:320969-1
• GRIN Nomen Number: 404784
• International Plant Names Index (IPNI) ID: 320969-1
• Zipcode Zoo Species Identifier: 1256955

Footnotes

1. Xi-wen Li, Jie Li & Peter S. Ashton "Dipterocarpaceae". in Flora of China Vol. 13 Page 48. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
2. "Hopea". in Flora of China Vol. 13 Page 48, 49. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]

©2004-2012 David Stang. All rights reserved.