Allometry of Corylus cornuta ssp. californica based on dissection of 50 plants collected within 100 m of the Yosemite Forest Dynamics Plot. Shaded regions indicate 95 % confidence intervals. Axis scaling differs among figure panels. The y-axis for biomass graphs is logarithmic. The diameter-age relationship is linear. DBA = basal diameter (circular symbols); DBH = diameter at breast height (triangular symbols).