Rufous Beard-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 731
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- Species by county
- Ceredigion
Species recorded in Ceredigion
887 species
Ceredigion — county
Diatoma hyemalis
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 725
Bluebell Rust
- Group
- Fungi
- Peak month
- May
- Records since 2000
- 710
Synedra debilis
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 697
Welsh Pocket-moss
- Group
- Mosses
- Peak month
- November
- Records since 2000
- 684
Cluster Cup Rust
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 679
Erysiphe aquilegiae
- Group
- Fungi
- Peak month
- September
- Records since 2000
- 679
Plantain Mildew
- Group
- Fungi
- Peak month
- September
- Records since 2000
- 676
Puccinia obscura
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 657
Amandinea pelidna
- Group
- Lichens
- Peak month
- August
- Records since 2000
- 643
Intermediate Water-starwort
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 638
Black Needle Fly
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 634
Tall-clustered Thread-moss
- Group
- Mosses
- Peak month
- June
- Records since 2000
- 627
Puccinia hieracii
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 613
Long fringe-moss / elongate racomitrium moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 609
Marsupella aquatica
- Group
- Liverworts
- Peak month
- June
- Records since 2000
- 607
Milesina kriegeriana
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 602
Tanytarsus parenti
- Group
- True flies
- Peak month
- August
- Records since 2000
- 591
Chaetomorpha ligustica
- Group
- Seaweeds and algae
- Peak month
- May
- Records since 2000
- 589
Nipplewort Rust
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 589
White Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 585
Rust Fungus
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 579
Violet Rust
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 575
Graceful green hair
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 568
Melampsora epitea
- Group
- Fungi
- Peak month
- May
- Records since 2000
- 561
Hart's Tongue Fern Rust
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 557
Birch Rust
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 552
Encyonema gracile
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 548
Holt's Mouse-tail Moss
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 543
Willowherb Mildew
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 533
Bitter Chocolate Rust
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 526
Fountain Smoothcap
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 524
China Limpet
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 516
Puccinia acetosae
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 509
Podosphaera erigerontis-canadensis
- Group
- Fungi
- Peak month
- September
- Records since 2000
- 500
Yellow Thread-moss
- Group
- Mosses
- Peak month
- November
- Records since 2000
- 500
Melampsora caprearum
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 475
Celandine Clustercup Rust
- Group
- Fungi
- Peak month
- April
- Records since 2000
- 474
Fir-Fireweed rust
- Group
- Fungi
- Peak month
- September
- Records since 2000
- 459
Sonchus rust
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 457
Navicula rhynchocephala
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 456
Pink bull's-eye lichen
- Group
- Lichens
- Peak month
- September
- Records since 2000
- 455
Rhabdoweisia moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 454
Electrogena lateralis
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 452
Milesina dieteliana
- Group
- Fungi
- Peak month
- May
- Records since 2000
- 436
Puccinia circaeae
- Group
- Fungi
- Peak month
- August
- Records since 2000
- 426
Peronospora crustosa
- Group
- Microorganisms and protists
- Peak month
- May
- Records since 2000
- 423
Melampsora hypericorum
- Group
- Fungi
- Peak month
- July
- Records since 2000
- 419