Status: Native
Synonyms:
Mnium turbinatum Hedwig
Bryum turbinatum (Hedw.) Turner
Hypnum turbinatum (Hedw.) F. Weber & D. Mohr
Ptychostomum turbinatum is most easily suspected on the basis of its symmetric capsule-- frequently
rather ambiguously described as "turbinate". The operculum is short apiculate, and the mouth of the
capsule somewhat constricted. This must have suggested the shape of a spinning top to an early
investigator. The yellow-green leaves have a strong limbidium.
Many thanks to the University of Colorado Herbarium (COLO), Erin Tripp, and Dina Clark for permitting us to
photograph this specimen.
Please click on an image for a larger file.
Ptychostomum turbinatum, collection by W.A. Weber, Lincoln County, Colorado, Boulder County, between Niwot Ridge and Bald Mtn., above Green Lake, September 12, 1972; (initial ID by Weber as Bryum stenotrichum annotated by Weber to Ptychostomum turbinatum, April 21, 2004); photos by Russ Kleinman, Kelly Allred, Karen Blisard, Stacey Anderson, and Ron Wittmann January 19, 2023
Ptychostomum turbinatum, collection by W.A. Weber, Lincoln County, Colorado, Boulder County, between Niwot Ridge and Bald Mtn., above Green Lake, September 12, 1972; (initial ID by Weber as Bryum stenotrichum annotated by Weber to Ptychostomum turbinatum, April 21, 2004); photos by Russ Kleinman, Kelly Allred, Karen Blisard, Stacey Anderson, and Ron Wittmann January 19, 2023
Ptychostomum turbinatum, photomicrograph of leaf, collection by W.A. Weber, Lincoln County, Colorado, Boulder County, between Niwot Ridge and Bald Mtn., above Green Lake, September 12, 1972; (initial ID by Weber as Bryum stenotrichum annotated by Weber to Ptychostomum turbinatum, April 21, 2004); photos by Russ Kleinman, Kelly Allred, Karen Blisard, Stacey Anderson, and Ron Wittmann January 19, 2023
Ptychostomum turbinatum, photomicrograph of leaf, collection by W.A. Weber, Lincoln County, Colorado, Boulder County, between Niwot Ridge and Bald Mtn., above Green Lake, September 12, 1972; (initial ID by Weber as Bryum stenotrichum annotated by Weber to Ptychostomum turbinatum, April 21, 2004); photos by Russ Kleinman, Kelly Allred, Karen Blisard, Stacey Anderson, and Ron Wittmann January 19, 2023
Ptychostomum turbinatum, photomicrograph of leaf apex, collection by W.A. Weber, Lincoln County, Colorado, Boulder County, between Niwot Ridge and Bald Mtn., above Green Lake, September 12, 1972; (initial ID by Weber as Bryum stenotrichum annotated by Weber to Ptychostomum turbinatum, April 21, 2004); photos by Russ Kleinman, Kelly Allred, Karen Blisard, Stacey Anderson, and Ron Wittmann January 19, 2023
Ptychostomum turbinatum, photomicrograph of leaf base, collection by W.A. Weber, Lincoln County, Colorado, Boulder County, between Niwot Ridge and Bald Mtn., above Green Lake, September 12, 1972; (initial ID by Weber as Bryum stenotrichum annotated by Weber to Ptychostomum turbinatum, April 21, 2004); photos by Russ Kleinman, Kelly Allred, Karen Blisard, Stacey Anderson, and Ron Wittmann January 19, 2023
Ptychostomum turbinatum, photomicrograph of limbidium, collection by W.A. Weber, Lincoln County, Colorado, Boulder County, between Niwot Ridge and Bald Mtn., above Green Lake, September 12, 1972; (initial ID by Weber as Bryum stenotrichum annotated by Weber to Ptychostomum turbinatum, April 21, 2004); photos by Russ Kleinman, Kelly Allred, Karen Blisard, Stacey Anderson, and Ron Wittmann January 19, 2023
Ptychostomum turbinatum, photomicrograph of capsule, collection by W.A. Weber, Lincoln County, Colorado, Boulder County, between Niwot Ridge and Bald Mtn., above Green Lake, September 12, 1972; (initial ID by Weber as Bryum stenotrichum annotated by Weber to Ptychostomum turbinatum, April 21, 2004); photos by Russ Kleinman, Kelly Allred, Karen Blisard, Stacey Anderson, and Ron Wittmann January 19, 2023
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