Megalaria pulverea
- Peak month
- May
- Records since 2000
- 1,294
- Group
- Lichens
Lathagrium auriforme
- Peak month
- July
- Records since 2000
- 1,289
- Group
- Lichens
Variegated Foam Lichen
- Peak month
- June
- Records since 2000
- 1,267
- Scientific name
- Stereocaulon vesuvianum
Calcareous scribble lichen
- Peak month
- August
- Records since 2000
- 1,258
- Scientific name
- Arthonia calcarea
Laddered Pixie-cup Lichen
- Peak month
- July
- Records since 2000
- 1,258
- Scientific name
- Cladonia cervicornis
Pseudosagedia aenea
- Peak month
- May
- Records since 2000
- 1,255
- Group
- Lichens
Mealy-rimmed Shingle Lichen
- Peak month
- November
- Records since 2000
- 1,251
- Scientific name
- Pannaria conoplea
Lecanora orosthea
- Peak month
- June
- Records since 2000
- 1,249
- Group
- Lichens
Yellow bloodstain lichen
- Peak month
- May
- Records since 2000
- 1,241
- Scientific name
- Haematomma ochroleucum
Dot lichen
- Peak month
- May
- Records since 2000
- 1,238
- Scientific name
- Micarea lignaria
Rim lichen
- Peak month
- April
- Records since 2000
- 1,237
- Scientific name
- Glaucomaria carpinea
Mougeot's Rock-shield
- Peak month
- April
- Records since 2000
- 1,232
- Scientific name
- Xanthoparmelia mougeotii
Gritty British Soldiers Lichen
- Peak month
- May
- Records since 2000
- 1,229
- Scientific name
- Cladonia floerkeana
Big salted-ruffle
- Peak month
- May
- Records since 2000
- 1,214
- Scientific name
- Parmotrema crinitum
Blastenia crenularia
- Peak month
- July
- Records since 2000
- 1,210
- Group
- Lichens
Common clam lichen
- Peak month
- June
- Records since 2000
- 1,203
- Scientific name
- Hypocenomyce scalaris
Rim lichen
- Peak month
- May
- Records since 2000
- 1,198
- Scientific name
- Lecanora confusa
Micarea byssacea
- Peak month
- May
- Records since 2000
- 1,193
- Group
- Lichens
Brown-eyed shingle lichen
- Peak month
- March
- Records since 2000
- 1,189
- Scientific name
- Pannaria rubiginosa
Jelly Lichen
- Peak month
- November
- Records since 2000
- 1,155
- Scientific name
- Enchylium tenax
Blackthread Lichen
- Peak month
- July
- Records since 2000
- 1,151
- Scientific name
- Placynthium nigrum
Diarthonis spadicea
- Peak month
- April
- Records since 2000
- 1,150
- Group
- Lichens
Gallowayiopsis glebulosa
- Peak month
- September
- Records since 2000
- 1,144
- Group
- Lichens
Arthonia vinosa
- Peak month
- May
- Records since 2000
- 1,141
- Group
- Lichens
Rim lichen
- Peak month
- May
- Records since 2000
- 1,138
- Scientific name
- Lecanora gangaleoides
Tattered Jellyskin
- Peak month
- May
- Records since 2000
- 1,130
- Scientific name
- Scytinium lichenoides
String-of-sausage lichen
- Peak month
- March
- Records since 2000
- 1,125
- Scientific name
- Usnea articulata
Blood whiskers
- Peak month
- May
- Records since 2000
- 1,120
- Scientific name
- Chaenotheca ferruginea
Bloody Comma Lichen
- Peak month
- May
- Records since 2000
- 1,118
- Scientific name
- Coniocarpon cinnabarinum
Dendrographa decolorans
- Peak month
- February
- Records since 2000
- 1,107
- Group
- Lichens
Sarcogyne lichen
- Peak month
- June
- Records since 2000
- 1,095
- Scientific name
- Sarcogyne regularis
Reindeer Lichen
- Peak month
- September
- Records since 2000
- 1,094
- Scientific name
- Cladonia arbuscula
Dark Gray Boulder Lichen
- Peak month
- May
- Records since 2000
- 1,081
- Scientific name
- Porpidia cinereoatra
Disc lichen
- Peak month
- May
- Records since 2000
- 1,080
- Scientific name
- Buellia griseovirens
Cladonia subcervicornis
- Peak month
- May
- Records since 2000
- 1,076
- Group
- Lichens
Dot lichen
- Peak month
- July
- Records since 2000
- 1,072
- Scientific name
- Arthonia punctiformis
Gyrographa gyrocarpa
- Peak month
- May
- Records since 2000
- 1,071
- Group
- Lichens
Common Coal Dust Lichen
- Peak month
- September
- Records since 2000
- 1,069
- Scientific name
- Acarospora privigna
Mealy Firedot Lichen
- Peak month
- September
- Records since 2000
- 1,068
- Scientific name
- Flavoplaca citrina
Granular Mottled-disk Lichen
- Peak month
- May
- Records since 2000
- 1,064
- Scientific name
- Trapeliopsis granulosa
Flat Fruited Pelt
- Peak month
- May
- Records since 2000
- 1,044
- Scientific name
- Peltigera horizontalis
Parmeliella parvula
- Peak month
- May
- Records since 2000
- 1,008
- Also known as
- a Lichen
Gritty Tree Pelt Lichen
- Peak month
- March
- Records since 2000
- 1,006
- Scientific name
- Peltigera collina
Branched Pixie-cup Lichen
- Peak month
- September
- Records since 2000
- 1,003
- Scientific name
- Cladonia ramulosa
Catillaria lichen
- Peak month
- September
- Records since 2000
- 999
- Scientific name
- Catillaria lenticularis
Pale-footed Horsehair Lichen
- Peak month
- May
- Records since 2000
- 985
- Scientific name
- Bryoria fuscescens
Lepra multipuncta
- Peak month
- May
- Records since 2000
- 973
- Group
- Lichens
Trapeliopsis lichen
- Peak month
- May
- Records since 2000
- 970
- Scientific name
- Trapeliopsis pseudogranulosa