| Authors |
| Maarten Christenhusz (London) & Eckhard von Raab-Straube (Berlin) |
| Last updates |
| 14 Mar 2022: E. Raab-Straube (Huperzia updated according to Björk in Ann. Bot. Fennici 57: 255-278. 2020) |
| 7 Mar 2022: E. Raab-Straube (introduced ferns in Austria according to Stöhr & al. in Neilreichia 12: 105-144. 2021) |
| Editorial assistance |
| Jonathan Pahl, Katharina Peter (Berlin) |
| Taxonomic advice |
| Christopher Fraser-Jenkins (Kathmandu) Angelo Troìa (Palermo); Isoëtes Pertti Uotila (Helsinki); Huperzia |
| Regional and bibliographic advice |
| Ralf Hand (Berlin); Germany |
| Common names |
| Carmen Begerock (Berlin) |
