“saber tooth moss”
How to recognize saber tooth moss: Like all Plagiomnium species the leaves of P. ciliare have single teeth, and there is a border of long cells which can be seen with a compound microscope. The plants are medium sized and grow in loose to dense tufts. The leaves are long-decurrent and the teeth on the upper part of the leaf are 2-4 celled and extend to the base of the leaf even though they may be much shorter there. They are hard to see with a hand lens, but these teeth to the base of the leaf are the distinguishing feature from Plagiomnium cuspidatum. Non-fertile stems of the plant appear flattened (complanate).
Where to find saber tooth moss: Plagiomnium ciliare grows in shady places on soil, rotten logs, tree bases and rocks in woods.