On the occurrence of asymmetrical underleaves associated with left-right symmetry in Spruceanthus mamillilobulus (Herzog) Verd. (Lejeuneaceae), a little-known species from China and Vietnam. - Wang, Jian; Robbert Gradstein, S.; Shi, Xue-Qin; Zhu, Rui-Liang; Do, Van Truong (Journal of Bryology, 2015)