Ottley, T. 2021. Racomitrium obtusum in Britain and Ireland. Field Bryology 125: 20-33

Tom Ottley describes the newly-recognised Racomitrium obtusum and provides a key to all Racomitrium species in Britain and Ireland.

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Frisvoll, A.A. 1988. A taxonomic revision of the Racomitrium heterostichum group (Bryophyta, Grimmiales) in N. and C. America, N. Africa, Europe and Asia. Gunneria 59: 1-289.

Detailed descriptions of the species in the R. heterostichum group, with illustrations.

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