Cystopteris fragilis (L.) Bernh.
(Brittle Bladder-fern)

Taxonomic hierarchy:
SpeciesCystopteris fragilis (Brittle Bladder-fern)
GenusCystopteris (bladder ferns)
FamilyCYSTOPTERIDACEAE (a family of ferns)
OrderPOLYPODIALES (an order of ferns)
ClassPOLYPODIOPSIDA (a class of ferns)
PhylumPTERIDOPHYTA (ferns and allies)
SubkingdomVIRIDIPLANTAE (lower green plants)
KingdomPLANTAE (plants)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Cystopteris fragilis (Brittle Bladder-fern) :
1: Cystopteris fragilis (Brittle Bladder-fern)
2 Nov 2006 OSGR: SK15 53° 0’ N, 1° 50’ W Vice County: Derby (VC 57) England
in crevices in limestone exposure
Image 1: Pinna - underside - close-upImage 2: Plant - in crevice in limestone cliffImage 3: Plants - in crevice in limestone cliffImage 4: Plants - in crevice in limestone cliff (2)Image 5: Plants - in crevice in limestone cliff (3)Image 6: Plants - in crevice in limestone cliff (4)Image 7: Plants - in crevice in limestone cliff (5)Image 8: Pinnae - underside - close-up - enlarged
2: Cystopteris fragilis (Brittle Bladder-fern)
27 Jun 2004 OSGR: SO23 51° 60’ N, 3° 10’ W Vice County: Brecon (VC 42) Wales
under small overhang on edge of mountain stream
Image 1: Close-upImage 2: Close-up (2)Image 3: Frond - close-upImage 4: Fronds - close-upImage 5: In situImage 6: Leaf - upperside - close-upImage 7: Leaf - underside - close-upImage 8: Leaf - upperside - enlargedImage 9: Leaf - underside - enlargedImage 10: Leaf - underside - enlarged (2)Image 11: Leaf - underside - enlarged (3)Image 12: Leaf - underside - magnifiedImage 13: Leaf - underside - magnified (2)Image 14: Leaf - underside - magnified (3)Image 15: Leaf - underside - magnified (4)Image 16: Spores - magnifiedImage 17: Spores - magnified (2)Image 18: Spores - magnified (3)Image 19: Spores - magnified (4)Image 20: Spores - microscope low magnificationImage 21: Spores - microscope low magnification (2)
3: Cystopteris fragilis (Brittle Bladder-fern)
29 Sep 1975 OSGR: SD76 54° 10’ N, 2° 20’ W Vice County: Mid-west Yorks (VC 64) England
in rock cleft
Image 1: Close-up
4: Cystopteris fragilis (Brittle Bladder-fern)
26 Sep 1975 OSGR: SD77 54° 10’ N, 2° 30’ W Vice County: Mid-west Yorks (VC 64) England
in rock cleft
Image 1: in situ

Identification Works

AuthorYearTitleSource
Jermy, A.C. & Camus, J.M. Cystopteris fragilis aggregate Yeo, P.F. Acaena, taxa with spherical heads, Plant Crib 2012

Cystopteris fragilis (Brittle Bladder-fern) may also be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Cystopteris fragilis (Brittle Bladder-fern)
BioInfoBioInfo (www.bioinfo.org.uk) has 1 host/parasite/foodplant and/or other relationships for Cystopteris fragilis (Brittle Bladder-fern)
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