Abstract
Multivariate statistical analysis of the anatomical structure of the wood of Recent Ginkgo biloba L. and of fossil Ginkgo beckii Scott, Barghoorn, & Prakash revealed significant differences not apparent through general microscopic observation. On the basis of a multiple discriminant analysis by computer of 10 anatomical characters, the living and fossil Ginkgo woods were separated into two distinct groups. All Recent wood specimens were classified into a single disjoint group by the computer, and all fossil wood specimens were classified into another without misclassifications when all 10 characteristics were included in the analysis. Three characters—number of pits per millimeter of tracheid length on radial wall, ray height, and tangential diameter of late wood tracheids—accounted for most of the discrimination between the two groups.
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