PtychostomumGenus
Child taxa
- Ptychostomum acutiforme
- Ptychostomum archangelicum
- Ptychostomum arcticum
- Ptychostomum bimum
- Ptychostomum calophyllum
- Ptychostomum cernuum
- Ptychostomum creberrimum
- Ptychostomum cryophilum
- Ptychostomum cyclophyllum
- Ptychostomum inclinatum
- Ptychostomum intermedium
- Ptychostomum knowltonii
- Ptychostomum lonchocaulon
- Ptychostomum longisetum
- Ptychostomum marratii
- Ptychostomum meesioides
- Ptychostomum neodamense
- Ptychostomum nitidulum
- Ptychostomum pallens
- Ptychostomum pallescens
- Ptychostomum pendulum
- Ptychostomum pseudotriquetrum
- Ptychostomum reedii
- Ptychostomum rutilans
- Ptychostomum salinum
- Ptychostomum schleicheri
- Ptychostomum subneodamense
- Ptychostomum turbinatum
- Ptychostomum warneum
- Ptychostomum weigelii
- Ptychostomum wrightii