Leaves with filaments on the adaxial surface of the costa. Leaves with lamellae on the adaxial surface of the costa. Leaf margins reflexed to revolute Crossidium 10. Leaves bordered with elongate cells. Leaves without elongate, marginal cells.
Leaves ciliate at upper part of hyaline sheath.
Lamellae distinctly wavy. Upper leaf margins with border of hyaline, short- rhombic cells. Upper leaf margins not bordered.