Does anyone know why taxonomy in SILVA sometimes have square brackets?
Why not just Clostridium leptum instead of [Clostridium] leptum? Does this have any significance, or is it just an error?
Secondly, it is my understanding that some taxa which lack formal classification are placed in groups (eg. Bacteroidales_S24_7_group). Does “S24_7” convey any information? What the naming convention?