Ophioglossaceae (Psilotopsida) in Ukraine
Parnikoza, Ivan, Chernyshenko, Maria, Celka, Zbigniew
Morphological characters of the seed coat in selected species of the genus Hypericum L. and their taxonomic value
Szkudlarz, Piotr, Celka, Zbigniew
Fungal endophyte Cryptomycina pteridis (Rebent.) Syd. on the native fern Pteridium aquilinum (L.) Kuhn in Poland
Zenkteler, Elżbieta, Celka, Zbigniew, Szkudlarz, Piotr, Grzegorzek, Piotr
Relics of cultivation in the vascular flora of medieval West Slavic settlements and castles
Celka, Zbigniew
Genetic relationships between some of Malva species as determined with ISSR and ISJ markers
Celka, Zbigniew, Szczecińska, Monika, Sawicki, Jakub
Botrychium simplex E. Hitchc. (Ophioglossaceae) – a new species for the native flora of Ukraine
Parnikoza, Ivan Yu., Celka, Zbigniew
Seed morphology and anatomy of Hypericum majus (A. Gray) Britton
Szkudlarz, Piotr, Celka, Zbigniew, Rosadziński, Stanisław, Wojciechowicz, Maria Katarzyna
Checklist of the vascular flora of Wielkopolska (Poland): casual alien species
Jackowiak, Bogdan, Celka, Zbigniew, Chmiel, Julian, Latowski, Karol, Żukowski, Waldemar
The natural history collections of Adam Mickiewicz University in Poznań (Poland): an outline of their history and content
Jackowiak, Bogdan, Błoszyk, Jerzy, Celka, Zbigniew, Konwerski, Szymon, Szkudlarz, Piotr, Wiland-Szymańska, Justyna
Biodiversity: Research and Conservation reaches volume 50! Looking back and forward
Jackowiak, Bogdan, Celka, Zbigniew, Obarska, Elżbieta