Leaf cross-sections of the Festuca sects. Lojaconoa (A–B), Schedonorus (C–E), and Phaeochloa (F–G) species. A F. patula B F. coerulescens (arrow pointing to the sclerenchyma interrupting the cells of the outer median vascular bundle sheath) C F. interrupta (C1 inrolled leaf, C2 flat leaf) D F. arundinacea (arrow pointing to the bulliform cells) E F. mediterranea (E1 mature leaf, E2 inmature leaf) F F. altissima G F. lasto. Scale bars: 0.4 mm (A–E), 0.5 mm (F), and 0.6 mm (G).