Status: Native
Synonyms:
None
Dicranum acutifolium has straighter leaves than the very similar D. brevifolium.
The adaxial layer of epidermal costal cells is not differentiated-- a very helpful difference from
D. brevifolium which has differentiated 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 acutifolium, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, closeup of stems, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, closer look at leaf arrangement on stem, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, darkfield photomicrograph of several millimeter long leaf, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, darkfield photomicrograph of several millimeter long leaf, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, photomicrograph of leaf apices & base, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, photomicrograph of mid lamina and leaf apex, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, photomicrograph of capsule, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, photomicrograph of leaf cross section, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
Dicranum acutifolium, photomicrograph of leaf cross section, collection and ID by R.R. Ireland & G. Bellolo-Trucco, Canada, British Columbia, Cassiar District, Omineca Mtns., Peak Range, Katherine Creek at Katherine Lake, July 25, 1977; photos by Russ Kleinman, Karen Blisard, Stacey Anderson & Ron Wittmann, January 19, 2023
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