Overview of Aphanolejeunea (Jungermanniopsida) after 25 years

The last worldwide account of Aphanolejeunea, done 25 years ago, recognized 41 valid species. Since then the number of accepted taxa has increased by 10 new species, described mostly by us, and 4 species, as new combinations, were transferred from Cololejeunea to Aphanolejeunea. It also turned out that some other names, mostly synonyms, have been overlooked in the intervening years. Recent molecular evidence has shown that at the generic level Aphanolejeunea cannot be separated from Cololejeunea. Here, all valid Aphanolejeunea taxa are merged with (or returned to) Cololejeunea. Forty-three Cololejeunea names are established for the previously known 64 Aphanolejeunea binomials, 23 new combinations and 4 new names (these latter to avoid homonymy) are made, and 22 new synonyms are proposed. The continental distributions of all species are given, based on our recent knowledge.