FIGURE 3 in Two penzigioid Xylaria species described from China based on morphological and molecular characters

FIGURE 3. Xylaira sibirica (FCATAS764). A,B. Stromatal habit. C. Close-up view of stromatal surface, showing perithecial mounds and ostiolar disks. D. Section through stroma, showing perithecia. Scale is indicated by bars (A = 1 mm; B,D = 0.5 mm; C = 0.2mm).