Austrocylindropuntia and Ceratopteris are both examples of what taxonomic category?
Austrocylindropuntia Austrocylindropuntia is a genus of cacti (family Cactaceae) with 11 recognized species, which were once included in the genus "Opuntia". Some are native to South America.
Austrotrechus Austrotrechus is a genus of beetles in the family Carabidae, containing the following species: