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Urn moss (Physcomitrium turbinatum)
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urn moss
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urn moss
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Urn moss (Physcomitrium turbinatum)
Urn moss (Physcomitrium turbinatum)

top moss

plant
Also known as: Physcomitrium pyriforme, Physcomitrium turbinatum, urn moss(Show More)
Written by
George Yatskievych
Curator, Missouri Botanical Garden.
George Yatskievych
Fact-checked by
Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

top moss, (Physcomitrium pyriforme), a common species of urn moss formerly known as P. turbinatum. The common name derives from the top-shaped capsules, which open by a small lid at the tip to release the spores. Physcomitrium is a genus of about 80 species in the family Funariaceae of the subclass Bryidae, division Bryophyta.

George Yatskievych