Synonyms and Alternate Names:
Physcomitrium australe E. Britton
Physcomitrium californicum E. Britton
Physcomitrium drummondii E. Britton
Physcomitrium kellermanii E. Britton
Physcomitrium kellermanii var. drummondii (E. Britton) Grout
Physcomitrium megalocarpum Kindb.
Physcomitrium megalocarpum var. californicum (E. Britton) Grout
Physcomitrium pyriforme var. serratum (Renauld & Cardot) H.A. Crum & L.E. Anderson
Physcomitrium turbinatum (Michx.) E. Britton, nom. illeg., non Müll. Hal. ex Lesq. & James
Physcomitrium turbinatum (Michx.) E. Britton f. australe (E. Britton) Grout
Physcomitrium turbinatum Müll. Hal. ex Lesq. & James
Physcomitrium turbinatum (Britt.) Grout
Physcomitrium turbinatum var. langloisii (Renauld & Cardot) E. Britton