|Photo courtesy Robert A. Klips, Ohio Moss and Lichen Association.|
In Florida, this species is distributed from the northern counties southward to Manatee County, with some records from Broward and Monroe counties. It also occurs widely northward in the eastern U.S. and Canada, the Rocky Mountains, Pacific Northwest, and Alaska.
The leaf has a distinct midrib, which tapers out just short of the leaf tip, jagged teeth in the upper part, a broad, spreading base without inflated cells, and cells that are "worm-like" (elongate, tapered, and slightly wavy). Between the leaves are many branching, thread-like appendages called paraphyllia.
|The broad leaf base and tapered tip of the leaf of Climacium americanum |
give it a triangular shape. Photo courtesy Robert A. Klips, Ohio Moss and
Although it was collected a number of times in our local Hillsborough River Basin in the 1970's, I have yet to find living specimens myself. So I am grateful to Bob Klips of the Ohio Moss and Lichen Association for the use of his photos.
|The worm-like cells of Climacium can be seen in this photo from Wikimedia|
Commons of C. dendroides (not in our area).