37.
Rotate the origami flower model by 90 degrees.
Prepare to flatten a petal by pulling two edges in the opposite directions.
38.
Flatten the petal by pulling two edges in the opposite directions according to the step #37.
Prepare to apply a horizontal valley-fold.
Frail the white rose and frail are Her hands that gave Whose soul is sere and paler Than time's wan wave. Rosefrail and fair -- yet frailest A wonder wild In gentle eyes thou veilest, My blueveined child.