Fig. 1. Leaf phenotypes. (A) Wild-type blade (b), sheath (s), ligule/auricle region (a) indicated by arrows. (B) Field of Rolled leaf1-0/+ mutants. The spiky appearance of leaves is caused by leaf blades being inwardly rolled, as opposed to lying flat, as seen in wild-type leaves in A. The leaf blades of Rld1 mutants are often caught in the preceeding rolled-up blade and need to be unrolled in order to free the tassel (arrowhead). (C) Blade-sheath boundary of Rolled leaf1 leaf, with an abaxial ligule (l).