Field of Science

October 2014 Desktop Calendar

Another moss from my August vacation to New York and Connecticut. This one is Atrichum crispum. Unlike other Atrichum species, this one does not have lamellae running down the midrib. It has relatively large translucent leaves and teeth on the edges. The leaf blade is smooth but slightly folded into a V when wet. It is a bit challenging to tell this one from a Miniaceae without capsules. The capsules of Atrichum release spores via a salt-shaker mechanism, whereas the Miniaceae have peristome teeth that move in response to changes in humidity.

Fortunately I had my handy Common Mosses of the Northeast and Appalachians field guide with me to help with this identification.  

1 - Single click on the image to open it up in a new window. (If you use the image directly from the blog post you will lose a lot of resolution.)

2 - Right-click (or ctrl-click) on the image, and chose the option that says, "Set as Desktop Background" or "Use Image as Desktop Picture" or "Save Image As...". The wording may vary. (If saving the image to your computer is the only option, then locate it on your computer and choose the "Set as Desktop Background" or "Use Image as Desktop Picture" option from there.)

3 - If the image does not fit your desktop neatly, you may have to adjust the image (Mac: System Preferences - Desktop and Screen Saver - Desktop; Windows: Control Panel - Display - Desktop) and choose "Fill screen" as the display mode of your background image.

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