Petaled rock tripe lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 494
Umbilicaria cylindrica
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 397
Navel lichen
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 308
Blistered navel lichen
- Group
- Lichens
- Peak month
- September
- Records since 2000
- 228
Umbilicaria polyrrhiza
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 166
Navel lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 149
Xylopsora friesii
- Group
- Lichens
- Peak month
- July
- Records since 2000
- 117