Preissia quadrata (Scop.) Nees
(Narrow Mushroom-headed Liverwort)

Taxonomic hierarchy:
SpeciesPreissia quadrata (Narrow Mushroom-headed Liverwort)
FamilyMARCHANTIACEAE (a family of thallose liverworts)
OrderMARCHANTIALES (an order of thallose liverworts)
SubclassMARCHANTIIDAE (thallose liverworts)
ClassMARCHANTIOPSIDA (thallose liverworts)
PhylumMARCHANTIOPHYTA (liverworts)
SubkingdomVIRIDIPLANTAE (lower green plants)
KingdomPLANTAE (plants)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Preissia quadrata (Narrow Mushroom-headed Liverwort) :
1: Preissia quadrata (Narrow Mushroom-headed Liverwort)
27 Jun 2004 OSGR: SO23 51° 60’ N, 3° 10’ W Vice County: Brecon (VC 42) Wales
On rock, just above water level at stream side in upland valley
Image 1: Antheridia - close-upImage 2: In situImage 3: In situ (2)Image 4: Thallus and antheridia - close-upImage 5: Thallus and archegonia - close-upImage 6: Thallus and archegonia - close-up (2)Image 7: Thallus and archegonia - close-up (3)Image 8: Antheridia - side view - enlargedImage 9: Antheridia - side view - enlarged (2)Image 10: Pores - magnifiedImage 11: Pores - magnified (2)Image 12: Thallus - magnifiedImage 13: Antheridia - magnifiedImage 14: Pore - magnifiedImage 15: Pore - magnified (2)Image 16: Pore - magnified (3)Image 17: Pore - magnified (4)Image 18: Thallus - magnified
2: Preissia quadrata (Narrow Mushroom-headed Liverwort)
27 Jun 1971 OSGR: SK25 53° 10’ N, 1° 30’ W Vice County: Derby (VC 57) England
on wet cliff
Image 1: Fruits - in situ - close-up - enlargedImage 2: Thallus and antheridia - in situ - close-up - enlarged

Preissia quadrata (Narrow Mushroom-headed Liverwort) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Preissia quadrata (Narrow Mushroom-headed Liverwort)
BioInfoBioInfo (www.bioinfo.org.uk) has 0 host/parasite/foodplant and/or other relationships for Preissia quadrata (Narrow Mushroom-headed Liverwort)
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