Ptychostomum is not a valid species

Did you mean one of the species from the following list?

Ptychostomum altisetum - 3 collection objects

Ptychostomum bimum - 2 collection objects

Ptychostomum creberrimum - 2 collection objects

Ptychostomum pallescens - 1 collection objects

Ptychostomum pseudotriquetrum - 2 collection objects