MARK
Diphyscium foliosum
Pogonatum pennsylvanicum
![Persistent Photosynthetic Protonema](http://markrahill.com/wp-content/uploads/2016/08/Pogonatum-pennsylvanicum-750x563.jpg)
Persistent Photosynthetic Protonema
Phaeophyscia rubropulchra
Slug grazing exposing the Salmon-colored Medulla
Bazzania trilobata
Ptilidium pulcherrimum
Dicranodontium denudatum
![Showing denuded branches](http://markrahill.com/wp-content/uploads/2016/08/P7030375-750x563.jpg)
Showing denuded branches