Meesea triquetra - A photographic image. www.helsinki.fi/~korpela/meesea_triquetra.html
Meesiaceae - Links to information about the specimens in the American Bryophyte Catalogue of The New York Botanical Garden. www.nybg.org/bsci/hcol/bryo/Meesiaceae.html
Paludella squarrosa - A photographic image. www.helsinki.fi/~korpela/paludella_squarrosa.html
Paludella squarrosa - A photographic image. honeybee.helsinki.fi/users/korpela/paludella_squarrosa2.jpg
