Analysis of Turee Microscopic Cuaracters for Separating the Wood of Pinus Contorta and P. Ponderosa

Autor: Alex C. Wiedenhoeft, Regis B. Miller, Terra J. Theim
Rok vydání: 2003
Předmět:
Zdroj: IAWA Journal. 24:257-267
ISSN: 2294-1932
0928-1541
DOI: 10.1163/22941932-90001595
Popis: Three microscopic characters were evaluated for the identification of Pinus contorta and Pinus ponderosa. The tangential diameter of the resin canals, including the epithelium, was compared to the tangential diameter of the entire resin canal complex. The latter measurement was shown to give diagnostic results for these species. Data from the examination of ray composition do not support previously published methods for separating P. contorta and P. ponderosa. The presence or absence of small elongate crystals in the subsidiary parenchyma of the resin canal complexes was shown to be the most powerful diagnostic character for separating the wood of these species.
Databáze: OpenAIRE