Ptychostomum cernuum, Ptychostomum archangelicum, Ptychostomum arcticum, Ptychostomum bimum, Ptychostomum calophyllum, Ptychostomum cryophilum, Ptychostomum cyclophyllum, Ptychostomum intermedium, Ptychostomum knowltonii, Ptychostomum longisetum, Ptychostomum marratii, Ptychostomum meesioides, Ptychostomum neodamense, Ptychostomum pallens, Ptychostomum pallescens, Ptychostomum purpurascens, Ptychostomum reedii, Ptychostomum rutilans, Ptychostomum salinum, Ptychostomum schleicheri, Ptychostomum turbinatum, Ptychostomum warneum, Ptychostomum weigelii, Ptychostomum wrightii, Ptychostomum creberrimum, Ptychostomum altisetum, Ptychostomum cylindrothecium, Ptychostomum axel-blyttii, Ptychostomum funkii, Ptychostomum bryoides, Ptychostomum nitidulum, Ptychostomum teres, Ptychostomum orthothecium, Ptychostomum compactum, Ptychostomum austriacum, Ptychostomum chorizodontum, Ptychostomum dicarpum, Ptychostomum donatii, Ptychostomum eatonii, Ptychostomum gayanum, Ptychostomum hawaiicum, Ptychostomum inclinatum, Ptychostomum kerguelense, Ptychostomum lamprochaete, Ptychostomum lonchocaulon, Ptychostomum minii, Ptychostomum mucronatum, Ptychostomum nivale, Ptychostomum pacificum, Ptychostomum pauperculum, Ptychostomum pseudotriquetrum, Ptychostomum revolutum, Ptychostomum sibiricum, Ptychostomum subneodamense, Ptychostomum touwii, Ptychostomum vermigerum, Ptychostomum vernicosum, Ptychostomum zeballosicum,