Leaves wide-spreading, caducous, distant to subimbricate, ventrad, ovate, 0.5-0.1 mm long, ca.
Leaves obliquely and horizontally spreading, imbricate, broadly ovate to ovate-oblong, ca.
Leaves horizontally spreading, ovate to ovate-oblong, strongly ciliate by numerous long-linear teeth (20-60) all around the leaf, the teeth to 15 cells long; dorsal leaf base rather longly and broadly decurrent, ventral leaf base not or rather longly and very narrowly decurrent, not ampliate.
Leaves spreading, ventrad, ovate to ovate-oblong and very small, usually less than 1 mm long and 1.1-1.7x longer than wide, bifid, with 2 large teeth at the apex and a few smaller teeth (1-10) on the ventral margin; leaf bases not or hardly decurrent.
Leaves distant to imbricate, obliquely to widely spreading, ovate, 0.9-1.2x longer than wide, not ampliate, strongly caducous; dorsal margin almost straight and entire, plane or narrowly recurved, ventral arched and toothed, with 1-14 teeth, apex often with 2 larger teeth or lobes; dorsal and ventral leaf leaf bases not or very shortly decurrent.