Canarium Spp. Family: Burseraceae Kedondong

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Canarium spp. Family: Burseraceae Kedondong Other Common Names: Dhup, White Dhup (India), Kedondong (Malaya), Merdongdong (Indonesia), Pagsahingin (Philippines), Kaunicina-Kaunigai (Fiji islands). Distribution: Throughout southeastern Asia and reaching northward to Taiwan. The Tree: Commonly 80 to 100 ft in height with trunk diameters of 2 to 3 ft. Varies with species and may reach a height of 180 ft with a diameter of 5 ft. Boles with small to prominent buttresses. The Wood: General Characteristics: Heartwood usually pink or light brown, sometimes with yell streaks, or reddish brown; sapwood lighter and often not clearly demarcated. Textu fine to moderately coarse; grain rather straight to shallowly interlocked; lustrous without distinctive odor or taste. Silica content up to 1.68% is reported. Weight: Basic specific gravity (ovendry weight/green volume) varies with species, mostly 0.35 to 0.52; air-dry density 26 to 40 pcf. Mechanical Properties: (2-in. standard) Moisture content Bending strength Modulus of elasticity Maximum crushing strength (%) (Psi) (1,000 psi) (Psi) Green (7) 8,610 NA 4,280 12% 27,280 3,450 11,640 Forest Products Laboratory toughness 140 in.-lb for green material (5/8-in. specimen). Drying and Shrinkage: Generally reported to season well with little degrade. Kiln schedule T10- D4S is suggested for 4/4 stock of low density C. euphyllum. Shrinkage green to ovendry for C. asperum: radial 5.1%; tangential 6.6%. Working Properties: Generally easy to work but varies with species because of density range and presence or absence of silica. Durability: Heartwood perishable and is readily attacked by termites. Sapwood is very susceptible to powder-post beetle infestation. Preservation: Sapwood is permeable, but heartwood is highly resistant to preservative treatment. Uses: Veneer and plywood, light construction (under cover), furniture components, joinery, boxes, and crates. Additional Reading:: ((7), (9), (17), (47) From: Chudnoff, Martin. 1984. Tropical Timbers of the World. USDA Forest Service. Ag. Handbook No. 607. 2.

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A New Species from Southern Namibia ⁎ W
Available online at www.sciencedirect.com South African Journal of Botany 77 (2011) 608–612 www.elsevier.com/locate/sajb Commiphora buruxa (Burseraceae), a new species from southern Namibia ⁎ W. Swanepoel H.G.W.J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria 0002, South Africa Received 16 August 2010; received in revised form 23 November 2010; accepted 7 December 2010 Abstract Commiphora buruxa Swanepoel, described here as a new species, is known only from the Gariep Centre of Endemism, southwestern Namibia. It appears to be most closely related to C. cervifolia Van der Walt. Diagnostic morphological characters of C. buruxa include a viscous, cream-coloured exudate, variably simple to trifoliolate leaves, and a putamen covered by a small cupular pseudo-aril. Illustrations of the plant and a distribution map are provided. The species is known from less than 20 plants. © 2011 SAAB. Published by Elsevier B.V. All rights reserved. Keywords: Burseraceae; Commiphora; Gariep Centre; New species; Southern Africa; Taxonomy 1. Introduction molecular evidence subsequently confirmed that they represent an undescribed species of Commiphora. In November 2006, At present thirty-eight described species of Commiphora during a botanical expedition to the Huns Mountains about Jacq. are known from the Flora of southern Africa region, no 100 km further to the north–northwest, another population of less than thirty of which occur in Namibia (Craven, 1999; the same species was found on the lower slopes of these Germishuizen and Meyer, 2003; Swanepoel, 2005, 2006, 2007, mountains, growing in a valley leading to the Konkiep River. 2008). Five of these species are endemic or near-endemic to the Apparently no other collections of the new species exist, as no Gariep Centre of Endemism, a biogeographical region along the herbarium specimens could be found in either PRE or WIND.
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