Herman Giethoorn:
Eastern Speckled Shield Lichen, Punctelia bolliana, 2
Herman Giethoorn:
Eastern Speckled Shield Lichen, Punctelia bolliana, 3
Herman Giethoorn:
Eastern Speckled Shield Lichen, Punctelia bolliana, 4
Herman Giethoorn:
Eastern Speckled Shield Lichen, Punctelia bolliana, 5
Herman Giethoorn:
Shingled Rock-shield Lichen, Xanthoparmelia somloensis (1)
Herman Giethoorn:
Shingled Rock-shield Lichen, Xanthoparmelia somloensis (5)
Herman Giethoorn:
Shingled Rock-shield Lichen, Xanthoparmelia somloensis (4)
Herman Giethoorn:
Shield Lichen, possibly in Parmelia group (1)
Herman Giethoorn:
Shield Lichen, possibly in Parmelia group (2)
Herman Giethoorn:
Shield Lichen, possibly in Parmelia group (5)
Herman Giethoorn:
Orange Bush Lichen, Teloschistes, 1
Herman Giethoorn:
Orange Bush Lichen, Teloschistes, 2
Herman Giethoorn:
Elegant Sunburst Lichen, Xanthoria elegans (3)
Herman Giethoorn:
Elegant Sunburst Lichen, Xanthoria elegans (5)
Herman Giethoorn:
Hammered Shield Lichen, Parmelia sulcata, 1
Herman Giethoorn:
Hammered Shield Lichen, Parmelia sulcata, 2
Herman Giethoorn:
Hammered Shield Lichen, Parmelia sulcata, 3
Herman Giethoorn:
Dog-Lichen, Peltigera
Herman Giethoorn:
Scaly Dog-lichen, Peltigera praetextata (1)
Herman Giethoorn:
Scaly Dog-lichen, Peltigera praetextata (2)
Herman Giethoorn:
Scaly Dog-lichen, Peltigera praetextata (1)
Herman Giethoorn:
Scaly Dog-lichen, Peltigera praetextata (4)
Herman Giethoorn:
Scaly Dog-Lichen, Peltigera praetextata, 1
Herman Giethoorn:
Scaly Dog-Lichen, Peltigera praetextata, 2
Herman Giethoorn:
Scaly Dog-Lichen, Peltigera praetextata, 3
Herman Giethoorn:
Scaly-Dog Lichen, Peltigera praetextata, 4
Herman Giethoorn:
Scaly Dog Lichen, Peltigera praetextata, 1
Herman Giethoorn:
Scaly Dog Lichen, Peltigera praetextata, 2
Herman Giethoorn:
Scaly Dog Lichen, Peltigera praetextata, 3
Herman Giethoorn:
Rock Tripe Lichen, Umbilicaria mammulata, 1
