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| Figure 1: Moss from top view |
Figure 2: Lance shaped leaf with no midrib
Figure 3: Sporophyte capsule
Name: Platygyrium repens
Common name: Oil spill moss
Family: Hypnaceae
Collection Date: September 8, 2016
Habitat: Fallen damp tree bark
Location:James H. Barrow Field Station
Description: Short branches are upright rom stems and densely covered in leaves. leaves are dark green. Capsules are cylindrical in shape. Leaves are lance in shape and very small.
Key Used:
McKnight, K. B. (2013). Common Mosses of the Northeast and Appalachians (Princeton Field Guides). Princeton University Press.
Keying Steps:
Introduction key....16-17
Pleurocarp and Lace lacking a midrib....pp.362-364
1a- terrestrial plants....5
5b- Tree trunk and rotten logs...8
8b- Plants small (stem leaves <2mm)....9
9b- Stem and branch leaves are similar in shape
10a- Plants are oily and brown at center of disk...Platygyrium repens
Other Sources:
http://plants.usda.gov/core/profile?symbol=PLRE5
Do you have any pictures of the intact moss? This is really important in addition to microscopic views.
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