Identification of naturally grown Philippine teak (Tectona philippinensis Benth. and Hook. f.) based on morphological and anatomical features
2015
Ella, A.B. | Domingo, E.P. | Samiano, F.B. | Bondad, E.O. | Caringal, A.M.
This study addresses a gap in technical information that could help harness the potential of Philippine teak, one the country's endemic forest tree species of the family Verbenaceae (APG : Lamiaceae). A heavy and hard wood species with a relative density at 0.710, it is a promising source of structural timber. Dwarfing is usually observed in Philippine teak along rocky limestone and coral hills. Branching is sympodial, orthotropic and spreading to form a broad crown. Bark flaky, brown to grayish (similar to guava). The species has a high potential to regenerate by coppice method. Macroscopic observations and other physical attributes showed that the wood of Philippine teak is light yellow, grain is slightly waxy and texture is fine, glossy, hard and heavy. Fibers are medium-sized and thin-walled. Rays are uniseriate and multiseriate and classified as extremely low. Philippine teak wood could be differentiated from teak (Tectona grandis L.f.) by its smaller pores and thinner rays. The distinguishing anatomical features of the two Tectonas are the presence of whitish deposits and tyloses, ring-porous, growth rings (early wood and latewood).
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