Mosses, liverworts, and hornworts /
Hallingbäck, Tomas.
Hodgetts, N. G.
International Union for Conservation of Nature and Natural Resources.
IUCN/SSC Bryophyte Specialist Group.
Sveriges lantbruksuniversitet.ArtDatabanken.
Gland ; Cambridge : IUCN in collaboration with the Swedish Threatened Species Unit,
2000.
"IUCN/SSC Bryophte Specialist Group" -- T.p.
Includes bibliographical references.
Bryophytes.
Plants, Protection of.