Gymnomitrion concinnatum

Shoot anisophyllous Capsule valves vertical
Leaves closely imbricate
Leaf margin entire
Oil-bodies present
Sinus acute
Oil-bodies granulose
Shoot tips unreduced
No microphyllous branches
Vitta absent
Cuticle smooth
Gemmae absent
Divided < 0.5 leaf length
Leaves bilobed
Lobes triangular
Lobes symmetrical
Leaf bases not decurrent
Perigynium absent
Dioicous
Perianth present
Shoots mainly ascending
Small: 0.5 - 1.5 mm wide
Lobe tips rounded
Lobes rotund
Green to reddish brown
Underleaves absent
Lobe tips obtuse
Rhizoids not prominent
Medium: 1.5 - 2.5 mm wide
Lobe tips acute
Elaters bispiral
Perianth absent
Cuticle striate/papillose
Bright, light green
Oil-bodies colorless
Cell walls unevenly thick
Leaves transverse
Oil-bodies ave 2/cell
Perianth mouth wide
Shoots mostly unbranched
Pale, whitish green
Shoot julaceous
Trigones bulging
Perianth immersed