Index Hepaticarum Names Database (IHND)
Index Hepaticarum is a listing of all liverwort and hornwort epithets published between the effective dates of 1 May 1753 (the starting point of hepatic names) and 31 December 1973.
http://www.ville-ge.ch/musinfo/bd/cjb/hepatic/index.php

BRYOBRAIN
A neural classifier for the European foliose liverwort genera (Jungermanniales & Calobryales)
http://www.drehwald.info/bryobrain.htm
by Uwe Drehwald, Giessen

BRYOMONITOR
A Biomonitoring-Program for Neotropical Rainforests
http://www.drehwald.info/bryomon1.htm
by Uwe Drehwald, Giessen

IDnature Liverwort genera
The following interactive keys are available at Discover Life. Discover Life also has identification guides or interactive keys for a range of organisms, including plants, mammals, insects, birds, reptiles, and amphibians.
http://pick4.pick.uga.edu/mp/20q?guide=Liverwort_genera
by Matt von Konrat (Field Museum, Chicago) & John Pickering (University of Georgia, Athens)

IDnature Frullania New Zealand
The following interactive keys are available at Discover Life. Discover Life also has identification guides or interactive keys for a range of organisms, including plants, mammals, insects, birds, reptiles, and amphibians.
http://pick4.pick.uga.edu/mp/20q?guide=Liverworts
by Matt von Konrat (Field Museum, Chicago) & John Pickering (University of Georgia, Athens)

10.12.2004 Gerhard Winter