Very likely this is mutica based on location, but we cannot say without the labellum.
In the strict sense, either construction of the Pterostylis is scientifically valid. It depends on the authority you follow. However, whilst I prefer the splits and think that they make very good sense, I do agree that we should treat Pterostylis as a single entity on Naturemapr. I'm trying to work on the Canberra people :)