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Extractives from Klinki Pine (Araucaria klinkii Lauterbach)

Nature volume 182, pages 1593–1594 (1958)Cite this article

Abstract

THE wood of mature klinki pine trees (Araucaria klinkii) frequently contains pink areas running parallel to the grain. When these areas and those closely adjacent to them are moistened with N (or stronger) hydrochloric acid, they become vividly green or green-blue, but after 2–3 days fade to a brown colour. Other acids give either a weaker green colour on fresh samples of the wood or show no reaction. Of the other species of this genus the wood of parana pine (A. angustifolia O. Kuntze) frequently shows red-coloured bands, but these do not react in a similar manner when acid is applied to the surface of fresh samples. Dry wood of A. bidwillii Hook, A. cunninghamii Sweet, A. excelsa R. Br., and A. montana Bronger et Gris gave no response, but a weak reaction was shown by the woods of A. cookii R.Br. and A. bernierii Buchh.

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Authors and Affiliations

  1. Division of Forest Products, Commonwealth Scientific and Industrial Research Organization, Melbourne

    W. E. HILLIS & ANN CARLE

Authors
  1. W. E. HILLIS
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  2. ANN CARLE
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HILLIS, W., CARLE, A. Extractives from Klinki Pine (Araucaria klinkii Lauterbach). Nature 182, 1593–1594 (1958). https://doi.org/10.1038/1821593b0

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