Dipterocarpaceae

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Dipterocarpus retusus
Plant Info
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Scientific classification
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[[{{{diversity_link}}}|Diversity]]
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Type Species
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Genera
Anisoptera Cotylelobium Dipterocarpus Dryobalanops Hopea Marquesia Monotes Neobalanocarpus Pakaraimaea Parashorea Shorea Stemonoporus Upuna Vateria Vateriopsis Vatica
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Synonyms
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Dipterocarpaceae is a family of 17 genera and approximately 580-680 species of mainly tropical lowland rainforest trees with two-winged fruits. The largest genera are Shorea (360 species), Hopea (105 species), Dipterocarpus (70 species), and Vatica (60 species). Many are large forest emergent species, typically reaching heights of 40-70 m tall, with the tallest known living specimen over 85 m tall. The species of this family are of major importance in the timber trade. Their distribution is pantropical, from northern South America to Africa, the Seychelles, India, Indochina and Malaysia, with the greatest diversity and abundance in western Malaysia. Some species are now endangered as a result of overcutting and extensive illegal logging. They provide valuable woods, aromatic essential oils, balsam, resins and as a source for plywood.

Because most specimens are illegally harvested, Greenpeace suggests that consumers avoid using meranti.[1]

The dipterocarp family is generally divided into three subfamilies:

• Monotoideae: 3 genera, 30 species. Marquesia is native to Africa. Monotes has 26 species, distributed across Africa and Madagascar. Pseudomonotes is native to the Colombian Amazon.

• Pakaraimoideae: contains a single species, Pakaraimaea roraimae, found in the Guaianan highlands of South America.

• Dipterocarpoideae: the largest of the subfamilies, it contains 13 genera and 470-650 species. Distribution includes the Seychelles, Sri Lanka, India, Southeast Asia to New Guinea, but mostly in west Malaysia, where they form the dominant species in the lowland forests. The Dipterocarpoideae can be divided into two groups (Ashton, 1982; and Maury-Lechon and Curtet, 1998):
  • Valvate-Dipterocarpi group (Anisoptera, Cotylelobium, Dipterocarpus, Stemonoporus, Upuna, Vateria, Vateriopsis, Vatica). The genera of this group have valvate sepals in fruit, solitary vessels, scattered resin canals, and basic chromosome number x = 11.
  • Imbricate-Shoreae group (Balanocarpus, Hopea, Parashorea, Shorea). The genera of this group have imbricate sepals in fruit, grouped vessels, resin canals in tangential bands, and basic chromosome number x = 7. A recent molecular study (Dayanandan et. al., 1999) suggest that the genus Hopea forms a clade with Shorea sections Anthoshorea and Doona, and should be merged into Shorea.

A recent genetic study (Ducousso et. al. 2004) found that the Asian dipterocarps share a common ancestor with the Sarcolaenaceae, a tree family endemic to Madagascar. This suggests that ancestor of the Dipterocarps originated in the southern supercontinent of Gondwana, and that the common ancestor of the Asian dipterocarps and the Sarcolaenaceae was found in the India-Madagascar-Seychelles land mass millions of years ago, and were carried northward by India, which later collided with Asia and allowed the dipterocarps to spread across Southeast Asia and Malaysia.

Timbers

The following table associates tree species, wood name and wood color. The term Philippine red mahogany refers to the wood of trees belonging to the genera Shorea and Parashorea.

Genus & section	Species	Wood name	Wood colour	Wood type
Anisoptera	A. cochinchinensis, A. marginata, A. scaphula, A. thurifera and about ten other species	Mersawa		light hardwood
Cotylelobium	C. burckii, C. lanceolatum, C. melanoxylon	Resak		heavy hardwood
Dipterocarpus	D. alatus, D. baudii, D. basilanicus, D. borneensis, D. caudiferus, D. costulatus, D. grandiflorus, D. kerrii, D. tonkinensis, D. verrucosus, D. warburgii, and about 60 other species	Keruing		medium hardwood
Dryobalanops	D. aromatica, D. camphora, D. junghunii, D. kayanensis, D. lanceolata, D. oblongifolia, D. sumatrensis	Kapur, Kapor		medium hardwood
Hopea	H. acuminata, H. beccariana, H. dryobalanoides, H. mengarawan, H. nervosa, H. odorata, H. sangal and other species	Merawan		medium hardwood
Hopea	H. ferrea, H. forbesii, H. helferi, H. nutans, H. semicuneata and other species	Giam		heavy hardwood
Neobalanocarpus	N. heimii	Cengal		heavy hardwood
Parashorea	P. aptera, P. buchananii, P. chinensis, P. densiflora, P. globosa, P. lucida, P. macrophylla, P. malaanonan, P. parvifolia, P. smythiesii, P. stellata, P. tomentella	Gerutu		light hardwood
Parashorea	Parashorea plicata	Bagtikan	grey-brown
Shorea (Pentacme)	S. contorta, S. minandensis	White Lauan	grey to very light red
Shorea sect. Shorea	S. atrinervosa, S. brunnescens, S. crassa, S. exelliptica, S. foxworthyi, S. glauca, S. havilandii, S. laevis, S. leptoderma, S. materialis, S. maxwelliana, S. seminis, S. submontana, S. sumatrana, S. superba	Balau		heavy hardwood
Shorea sect. Almon	S. almon, S. contorta, S. leprosula, S. leptoclados, S. smithiana	Almon	light red to pink
Shorea sect. Anthoshorea	S. assamica, S. assamica, S. bracteolata, S. dealbata, S. hypochra, S. javanica, S. lamellata, S. maranti	White Meranti		light hardwood
Shorea sect. Richetia	S. acuminatissima, S. faguetiana, S. gibbosa, S. hopeifolia, S. multiflora	Yellow Meranti		light hardwood
Shorea sect. Rubroshorea	S. curtisii, S. hemsleyana, S. macrantha, S. pauciflora, S. platyclados, S. rugosa, S. singkawang, 4 other spp.	Dark red Meranti (Meranti bukit)		light hardwood
	S. acuminata, S. dasyphylla, S. johorensis, S. lepidota, S. parvifolia	Light red Meranti		light hardwood
	Shorea balangeran, Shorea collina, Shorea guiso, Shorea kunstleri, Shorea ochrophloia, [[Shorea plagata	Red Balau		heavy hardwood
Shorea	Shorea macroptera	Melantai		light hardwood
Shorea	Shorea negrosensis	Red Lauan	dark red-brown to brick red
Shorea	Shorea ovata	Tianong	light red to light red-brown
Shorea	Shorea platyclados	Meranti Bukit		light hardwood
Shorea	Shorea polysperma	Tanguile	red to red-brown
Shorea	Shorea robusta	Sal
Shorea	Shorea squamata	Mayapis	light red to red-brown
Shorea	Shorea uliginosa	Meranti Bakau		light hardwood

References

• Ashton, P.S. Dipterocarpaceae. Flora Malesiana, 1982 Series I, 92: 237-552.
• Maury-Lechon, G. and Curtet, L. Biogeography and Evolutionary Systematics of Dipterocarpaceae. In A Review of Dipterocarps: Taxonomy, ecology and silviculture, 1998. Appanah, S. and Turnbull, J.M. eds. Center for International Forestry Research, Bogor, Indonesia. ISBN 979-8764-20-X.
• Dayanandan, S. Ashton, P.S. Williams, S.M. Primack, R.B. 1999. Phylogeny of the tropical tree family Dipterocarpaceae based on nucleotide sequences of the chloroplast RBCL gene. American Journal of Botany. 86(8): 1182.
• M. Ducousso, G. Béna, C. Bourgeois, B. Buyck, G. Eyssartier, M. Vincelette, R. Rabevohitra, L. Randrihasipara, B. Dreyfus, Y. Prin. The last common ancestor of Sarcolaenaceae and Asian dipterocarp trees was ectomycorrhizal before the India-Madagascar separation, about 88 million years ago. Molecular Ecology 13: 231 January 2004.

External links

• A Review of Dipterocarps: Taxonomy, ecology and silviculture (PDF version)
• Dipterocarpaceae Data Base
• Dipterocarpaceae in L. Watson and M.J. Dallwitz (1992 onwards). The families of flowering plants: descriptions, illustrations, identification, information retrieval. http://delta-intkey.com
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