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PCA of Cites Listed Pterocarpus Santalinus (Leguminosae) Wood

PCA of Cites Listed Pterocarpus Santalinus (Leguminosae) Wood Pterocarpus santalinus L. f. is endemic to south eastern India where it is known as ‘red sandal wood’ or ‘red sanders wood’. A highly valued timber for its structural and medicinal properties P. santalinus is listed under CITES Appendix II, reflecting the possibility of extinction should unregulated trade continue. Currently timber identification uses comparative wood anatomy. Some P. santalinus specimens are very distinct from closely related species, but this is not always the case. PCA was applied to data on 17 wood anatomical characters and one physical character of several Pterocarpus species including P. santalinus. A comparative description of P. santalinus is presented using the same data as PCA. The primary quantitative outcome was discrete clustering of P. santalinus in PCA axes scores plots, distinguishing it from the other included species. PCA eigenvector data indicated which characters were responsible for the greatest amount of variance in the data set. With simple modifications PCA has considerable potential in quantitative wood anatomy as a complementary technique to comparative wood anatomy for the identification of cryptic wood specimens. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png IAWA Journal Brill

PCA of Cites Listed Pterocarpus Santalinus (Leguminosae) Wood

IAWA Journal , Volume 31 (2): 18 – Jan 1, 2010

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0928-1541
eISSN
2294-1932
DOI
10.1163/22941932-90000010
Publisher site
See Article on Publisher Site

Abstract

Pterocarpus santalinus L. f. is endemic to south eastern India where it is known as ‘red sandal wood’ or ‘red sanders wood’. A highly valued timber for its structural and medicinal properties P. santalinus is listed under CITES Appendix II, reflecting the possibility of extinction should unregulated trade continue. Currently timber identification uses comparative wood anatomy. Some P. santalinus specimens are very distinct from closely related species, but this is not always the case. PCA was applied to data on 17 wood anatomical characters and one physical character of several Pterocarpus species including P. santalinus. A comparative description of P. santalinus is presented using the same data as PCA. The primary quantitative outcome was discrete clustering of P. santalinus in PCA axes scores plots, distinguishing it from the other included species. PCA eigenvector data indicated which characters were responsible for the greatest amount of variance in the data set. With simple modifications PCA has considerable potential in quantitative wood anatomy as a complementary technique to comparative wood anatomy for the identification of cryptic wood specimens.

Journal

IAWA JournalBrill

Published: Jan 1, 2010

Keywords: Pterocarpus santalinus ; Dalbergioideae; Leguminosae; red sandal wood; CITES; quantitative wood anatomy; principal components analysis; morphometrics

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