Abstract

Abstract The relationships between the vegetative leaf dimensions, nerve width, proximal and median lamina cell dimensions, maximal alar cell width, and leaf curvature within the complex around Drepanocladus aduncus (Hedw.) Warnst. and D. polycarpus (Voit) Wamst. were evaluated in two sets of specimens: (1) material that was cultivated to evaluate variation within one clone, and (2) seventy-eight herbarium specimens, including most of the described variation within the D. aduncus-polycarpus complex. Within the D. aduncus-polycarpus complex most of the quantitative leaf characters studied show a statistically significant weak to strong correlation with each other. More strongly curved leaves are negatively correlated with the measurements of the other characters, otherwise the correlations are positive. The strongest significant correlation occurs between the median lamina cell length and the leaf length (r2 = 0 97, single clone, r2 = 0.92, herbarium material; based on median values for the character measu...

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