Envelope and turf with sporophytes of Plagiothecium longisetum from the University of Helsinki Herbarium (H-SOL 1563 011). Scale bar: 2 cm.

 
 
  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