The diagnosis of Plagiothecium longisetum (Lindberg 1872).

 
 
  Part of: Wolski GJ, Proćków J (2020) A new synonym from Hawaii and lectotypification of Plagiothecium longisetum (Plagiotheciaceae). PhytoKeys 164: 21-31. https://doi.org/10.3897/phytokeys.164.56612