Dendrobium lagarum Seidenf. is reported as as a newly recorded species of Orchidaceae from China. This species resembles D. exile Schltr., but differs by unbranched zigzag stems upside; sparse leaves; base of stems not dilated to fusiform, with 7-8 uniform ribs; half sized flowers, the mid-lobe of the lip sub-triangle, column foot without a spherical callus.
