@article{O’SheaOchyra2000,
  author    = {Brian J. O'Shea and Ryszard Ochyra},
  title     = {Families and genera of mosses no longer believed to occur in sub-Saharan Africa},
  journal   = {Tropical bryology},
  number    = {18},
  pages     = {119 -- 127},
  year      = {2000},
}