@article{Olson1999,
  author    = {Storrs L. Olson},
  title     = {Muscis Hawaiiensis Mantissae : 1., two weedy species of Bryum new to the archipelago},
  journal   = {Tropical bryology},
  number    = {17},
  pages     = {129 -- 130},
  year      = {1999},
}