Tortula genus -- Pottiaceae 

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​tortula moss (Tortula inermis) [40x mag] -- in December -- Waterfall Trail, Lory State Park, CO 
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​tortula moss (Tortula inermis) -- in April -- Arthur's Rock Trail, Lory State Park, CO
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​wall screw-moss (Tortula muralis) -- in January -- Orchard Cove Trail, Lory State Park, CO  
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​obtuse tortula moss (Tortula obtusifolia) [40x mag] -- in December -- Waterfall Trail, Lory State Park, CO