Status: Native
Synonyms:
None
Dicranum muehlenbeckii has more "curly-Q" leaves than the very similar D. acutifolium.
The adaxial layer of epidermal costal cells are differentiated in that they are noticeably larger than
the underlying cells of the adaxial stereid band-- a very helpful difference from
D. acutifolium which has undifferentiated adaxial costal cells. This character of course requires
technical skill at cross sectioning moss leaves to be useful.
Many thanks to the University of Colorado Herbarium (COLO), Erin Tripp, & Dina Clark for permitting us
to photograph this specimen!
Please click on an image for a larger file.
Dicranum muehlenbeckii, collection Steven P. Churchill, ID Kelly Allred (2023), South Dakota, Custer County, Cicero Peak on soil covered rock, May 19, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum muehlenbeckii, apex of stems, collection Steven P. Churchill, ID Kelly Allred (2023), South Dakota, Custer County, Cicero Peak on soil covered rock, May 19, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum muehlenbeckii, dark field photomicrograph of leaf, collection Steven P. Churchill, ID Kelly Allred (2023), South Dakota, Custer County, Cicero Peak on soil covered rock, May 19, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum muehlenbeckii, dark field photomicrograph of leaf, collection Steven P. Churchill, ID Kelly Allred (2023), South Dakota, Custer County, Cicero Peak on soil covered rock, May 19, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum muehlenbeckii, photomicrograph of leaf apex, collection Steven P. Churchill, ID Kelly Allred (2023), South Dakota, Custer County, Cicero Peak on soil covered rock, May 19, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum muehlenbeckii, photomicrograph of leaf base, collection Steven P. Churchill, ID Kelly Allred (2023), South Dakota, Custer County, Cicero Peak on soil covered rock, May 19, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum muehlenbeckii, photomicrograph of cells at mid lamina, collection Steven P. Churchill, ID Kelly Allred (2023), South Dakota, Custer County, Cicero Peak on soil covered rock, May 19, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum muehlenbeckii, photomicrograph of leaf cross section, collection Steven P. Churchill, ID Kelly Allred (2023), South Dakota, Custer County, Cicero Peak on soil covered rock, May 19, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
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