Ossicaulis lignatilis (Pers.) Redhead & Ginns
(Mealy Oyster)

Taxonomic hierarchy:
SpeciesOssicaulis lignatilis (Mealy Oyster)
FamilyLYOPHYLLACEAE (a family of toadstools)
OrderAGARICALES (mushrooms and toadstools)
SubclassAGARICOMYCETIDAE (a subclass of basidiomycetes)
ClassAGARICOMYCETES (a class of fungi)
SubphylumAGARICOMYCOTINA (a subphylum of fungi)
PhylumBASIDIOMYCOTA (spore droppers, basidiomycetes)
KingdomFUNGI (true fungi)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Ossicaulis lignatilis (Mealy Oyster) :
1: Ossicaulis lignatilis (Mealy Oyster)
9 Dec 2014 OSGR: SU20 50° 50’ N, 1° 40’ W Vice County: South Hants (VC 11) England
on exposed heartwood on roof of fallen, diagonally-split Beech log
Image 1: Fruitbodies - top view - natural backgroundImage 2: Fruitbodies - undersides showing stipe and gills - natural backgroundImage 3: Fruitbody - LS - natural backgroundImage 4: Fruitbody - side viewImage 5: Fruitbody - side view (2)Image 6: Fruitbody - side view (3)Image 7: Fruitbody - top view - natural backgroundImage 8: Fruitbody - underside viewImage 9: Stipe and gills - close-upImage 10: Cap - LS showing gill attachment - enlarged - natural backgroundImage 11: Cap surface - close-up - enlargedImage 12: Gills - close-up - enlargedImage 13: Gills - with Fe - enlarged - white backgroundImage 14: Spore print - enlarged - white backgroundImage 15: Spore print plus iodine - enlarged - white backgroundImage 16: Stipe apex and gill attachment - close-up - enlargedImage 17: Stipe - with Fe - enlarged - white backgroundImage 18: Spores - in cotton blue - magnifiedImage 19: Spores - magnifiedImage 20: Spores - highly magnifiedImage 21: Spores - highly magnified (2)Image 22: Spores - highly magnified (3)
2: Ossicaulis lignatilis (Mealy Oyster)
24 Oct 1985 OSGR: SU28 51° 30’ N, 1° 40’ W Vice County: North Wilts (VC 7) England
Image 1: Caps - top view - close-up - in situImage 2: Cap - top view - close-up - in situImage 3: Fruitbodies - close-up - in situImage 4: Fruitbodies - side views - lain downImage 5: Fruitbody - old - side view showing gills - lain downImage 6: Fruitbody - side view - lain downImage 7: Fruitbody - side view showing gills - lain downImage 8: Gills and stipe apex -close-upImage 9: Fruitbody - side view showing gills - in situ - enlargedImage 10: Fruitbody - side view showing gills - in situ - enlarged (2)Image 11: Spores - highly magnifiedImage 12: DescriptionImage 13: Description - contd
3: Ossicaulis lignatilis (Mealy Oyster)
1 Oct 1981 OSGR: SU26 51° 20’ N, 1° 40’ W Vice County: North Wilts (VC 7) England
on fallen ?Beech log, by roadside
Image 1: CollectionImage 2: Fruitbodies - side view - in situImage 3: Cap - close-up - enlargedImage 4: Spores - highly magnifiedImage 5: DescriptionImage 6: Description - contd

Identification Works

AuthorYearTitleSource
Ainsworth, M. 2004 Developing tools for assessing fungal interest in habitats, 1: beech woodland saprotrophs Research Reports, Report no 597, 75pp, English Nature
Kuyper, T.W. Ossicaulis Redh. & Ginns in Trans. mycol. Soc. Japan 26: 362. 1985 Bas, C. & Kuyper, T.W. Tricholomataceae R. Heim ex Pouz. (continuation), 8pp, Flora Agaricina Neerlandica 3
Watling, R. & Gregory, N.M. 1989 Crepidotaceae, Pleurotaceae and other pleurotoid Agarics British Fungus Flora, vol 6, 157pp, Her Majesty’s Stationery Office

Ossicaulis lignatilis (Mealy Oyster) may also be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Ossicaulis lignatilis (Mealy Oyster)
BioInfoBioInfo (www.bioinfo.org.uk) has 24 host/parasite/foodplant and/or other relationships for Ossicaulis lignatilis (Mealy Oyster)
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