Rai, M., Kushwaha, B.K. and Srivastava, S.N. 2015. The state of Scapania ligulata Steph. (Scapaniaceae, Marchantiophyta) in Western Himalaya, India. Plant Science Today. 2, 4 (Oct. 2015), 197–202. DOI:https://doi.org/10.14719/pst.2015.2.4.141.