-
Polytrichastrum sexangulare var. vulcanicum (C.E.O. Jensen) G.L. Merr.
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Merrill, G. L. 1992. Notes on North American Polytrichaceae: Polytrichastrum. Bryologist 95: 270–273.
-
Flora of North America Editorial Committee. 2007. Bryophytes: Mosses. 27: i–xxi, 1–713. In Fl. N. Amer.. Oxford University Press, New York.
-
Polytrichum norwegicum var. vulcanicum (C.E.O. Jensen) Podp.
-
Schofield, W. B. 1966. The identity of Polytrichum sphaerothecium (Besch.) Broth. Misc. Bryol. Lichenol. 4: 33–35.
-
Polytrichum sexangulare Flörke ex Brid.
-
Corley, M. F. V., A. C. Crundwell, R. P. G. Düll, M. O. Hill & A. J. E. Smith. 1981 [1982]. Mosses of Europe and the Azores: an annotated list of species, with synonyms from the recent literature. J. Bryol. 11: 609–689.
-
Polytrichum sphaerothecium (Besch.) Müll. Hal.
-
Ignatov, M. S. & O. M. Afonina. 1992. Checklist of mosses of the former USSR. Arctoa 1: 1–85.
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