Ray height and pitting type in the specimens from Carapace Nunatak. Ray height across specimens and wood morphogenera (µm). Specimens with mixed (i.e., araucarian and abietinean) and araucarian radial pitting are represented by caffè latte and blue-gray colors respectively. A. Size group distinction between specimens based on the Multiple Comparison Kruskal-Wallis test. Groups sharing letters are not characterized by significantly different sizes. Specimens are ordered in ascending order of their median value; B. Average ray height within the different wood morphogenera. Significance of the mean ray height was evaluated with a Wilcoxon test. Central black dots and lines indicate means and standard deviation of ray height measurements.