Fig. S2.

Scanning electron micrographs of florets at early developmental stages in lf1 showing degradation of the sterile lemma in lf1 plants during stages Sp4 (A), Sp5–6 (B), Sp7 (C), and Sp8 (D). rg, rudimentary glume; sl, sterile lemma. (Scale bars, 100 µm.)