I think this might be the recently described P. stipatum, but I am not entirely sure. Could also be P. jeaneganiae, which is much taller. One for Tobias.
That looks like it will probably do the trick. I photographed both species on the weekend and even then I couldn’t tell how they differed, and I don’t know where to find the information that tells me how they differ. I might have to pass these on to an expert and see what they have to say.
I think it looks a decent shout for P jeaneganiae. I'm with Matt though, I don't have a good handle on either species. Would be worth revisiting armed with a bit more information I reckon. Either way a nice find!