Orthoceras (plant)
Orthoceras is a genus of orchids native to Australia, New Zealand and New Caledonia. Two species are known:
- Orthoceras novae-zeelandiae M.A.Clem., D.L.Jones & Molloy - New Zealand
- Orthoceras strictum R.Br. - New South Wales, Queensland, South Australia, Tasmania, Victoria, New Zealand North Island, New Caledonia