Juglans L.
(walnuts)

Interactions where Juglans is the victim or passive partner (and generally loses out from the process)

The following relationships have been collated from the published literature (see 'References').

Filters:

Affected Part Summary Taxon Vernacular Classification References Darwin Classification of Active Taxon Active Taxon Active Vernacular Active Taxon Uncertain Active State Active Part Active Stage Relationship Relationship Uncertain Relationship Geography Darwin Classification of Passive Taxon Passive Taxon Passive Vernacular Passive Taxon Uncertain Passive State Passive Part Passive Stage Passive Taxon's significance to Active Taxon Indoors etc Season Summary
bark bark is associate of superficial or very slightly immersed, black, shining pycnidium of Crustodiplodina coelomycetous anamorph UK/Ireland Crustodiplodina lichenoides a lichenicolous coelomycete British Stem- and Leaf- Fungi: Coelomycetes Vol. I … Sphaeropsidales with hyaline conidia, Grove, W.B., 1935
 /Fungi/Ascomycota/Crustodiplodina lichenoides/Crustodiplodina lichenoidesa lichenicolous coelomycetesuperficial or very slightly immersed, black, shiningpycnidiumCrustodiplodina coelomycetous anamorph Plant / associateUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsbark superficial or very slightly immersed, black, shining pycnidium of Crustodiplodina coelomycetous anamorph is associated with bark
bark bark is decayed by effuse colony of Virgaria dematiaceous anamorph Virgaria nigra a dematiaceous anamorphic fungus Xylariales: Xylariaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Sordariomycetes/Xylariales/Xylariaceae/Virgaria nigra/Virgaria nigraa dematiaceous anamorphic funguseffusecolonyVirgaria dematiaceous anamorph Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsbark effuse colony of Virgaria dematiaceous anamorph is saprobic on bark
branch (dead) dead branch is decayed by erumpent through cracks in bark, grouped stroma Minor Thyridaria rubronotata an ascomycete Pleosporales: Thyridariaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Dothideomycetes/Pleosporales/Thyridariaceae/Thyridaria rubronotata/Thyridaria rubronotataan ascomyceteerumpent through cracks in bark, groupedstroma Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/JuglanswalnutsdeadbranchMinor (12-3)erumpent through cracks in bark, grouped stroma is saprobic on dead branch
branch (dead) dead branch is decayed by Cyclotherium coelomycetous anamorph Minor Thyridaria rubronotata an ascomycete Pleosporales: Thyridariaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Dothideomycetes/Pleosporales/Thyridariaceae/Thyridaria rubronotata/Thyridaria rubronotataan ascomyceteCyclotherium coelomycetous anamorph Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/JuglanswalnutsdeadbranchMinor (12-3)Cyclotherium coelomycetous anamorph is saprobic on dead branch
branch (fallen, dead) fallen, dead branch is decayed by perithecium Chaetosphaeria innumera a pyrenomycete Chaetosphaeriales: Chaetosphaeriaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Sordariomycetes/Chaetosphaeriales/Chaetosphaeriaceae/Chaetosphaeria innumera/Chaetosphaeria innumeraa pyrenomyceteperithecium Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsfallen, deadbranch (9-5)perithecium is saprobic on fallen, dead branch
branch (fallen, dead) fallen, dead branch is decayed by colony of Catenularia dematiaceous anamorph Chaetosphaeria innumera a pyrenomycete Chaetosphaeriales: Chaetosphaeriaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Sordariomycetes/Chaetosphaeriales/Chaetosphaeriaceae/Chaetosphaeria innumera/Chaetosphaeria innumeraa pyrenomycetecolonyCatenularia dematiaceous anamorph Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsfallen, deadbranch (9-5)colony of Catenularia dematiaceous anamorph is saprobic on fallen, dead branch
leaf (petiole) (live) live leaf (petiole) is spotted by colony UK/Ireland Xanthomonas arboricola pv. juglandis Walnut Bacterial Leaf Blight - causative organism Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
 /Proteobacteria/Xanthomonas arboricola pv. juglandis/Xanthomonas arboricola pv. juglandiswalnut bacterial leaf blight - causative organismcolony Foodplant / spot causerUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsliveleaf (petiole) colony causes spots on live leaf (petiole)
leaf (attached, fading) attached, fading leaf is spotted by hypophyllous acervulus of Marssonina coelomycetous anamorph Neomarssoniella juglandis a pyrenomycete Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Neomarssoniella juglandis/Neomarssoniella juglandisa pyrenomycetehypophyllousacervulusMarssonina coelomycetous anamorph Foodplant / spot causer /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsattached, fadingleaf (9-10)hypophyllous acervulus of Marssonina coelomycetous anamorph causes spots on attached, fading leaf
leaf (fallen, dead) fallen, dead leaf is decayed by immersed perithecium Neomarssoniella juglandis a pyrenomycete Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Neomarssoniella juglandis/Neomarssoniella juglandisa pyrenomyceteimmersedperithecium Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsfallen, deadleaf (3-4)immersed perithecium is saprobic on fallen, dead leaf
leaf (live) live leaf is spotted by colony UK/Ireland Xanthomonas arboricola pv. juglandis Walnut Bacterial Leaf Blight - causative organism Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
 /Proteobacteria/Xanthomonas arboricola pv. juglandis/Xanthomonas arboricola pv. juglandiswalnut bacterial leaf blight - causative organismcolony Foodplant / spot causerUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsliveleaf colony causes spots on live leaf
leaf (live) live leaf may be infected and damaged by Cherry Leaf-roll virus a phytopathogenic virus Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
 /Cherry Leaf-roll virus/Cherry Leaf-roll virusa phytopathogenic virus Foodplant / pathogen /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsliveleaf infects and damages live leaf
nut (young, green) nut (young, green) may be infected and damaged by hypophyllous acervulus of Marssonina coelomycetous anamorph Neomarssoniella juglandis a pyrenomycete Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Neomarssoniella juglandis/Neomarssoniella juglandisa pyrenomycetehypophyllousacervulusMarssonina coelomycetous anamorph Foodplant / pathogen /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsnut (young, green) (9-10)hypophyllous acervulus of Marssonina coelomycetous anamorph infects and damages nut (young, green)
shoot (live, galled) live, galled shoot is galled by Phytoplasma Phytoplasmas Acholeplasmatales: Acholeplasmataceae Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
 /Firmicutes/Mollicutes/Acholeplasmatales/Acholeplasmataceae/Phytoplasma/PhytoplasmaPhytoplasmas Foodplant / gall /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutslive, galledshoot causes gall of live, galled shoot
stem (esp. base) stem (esp. base) is galled by Rhizobium radiobacter Crown Gall - causative organism Rhizobiales: Rhizobiaceae Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
 /Proteobacteria/Alphaproteobacteria/Rhizobiales/Rhizobiaceae/Rhizobium radiobacter/Rhizobium radiobactercrown gall (causative organism) Foodplant / gall /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsstem (esp. base) causes gall of stem (esp. base)
trunk (wounded) wounded trunk is parasitised by fruitbody Polyporus squamosus Dryad’S Saddle Polyporales: Polyporaceae Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
 /Fungi/Basidiomycota/Agaricomycetes/Polyporales/Polyporaceae/Polyporus squamosus/Polyporus squamosusdryad’s saddlefruitbody Foodplant / parasite /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutswoundedtrunk fruitbody parasitises wounded trunk
wood wood is decayed by colony of Stachybotrys dematiaceous anamorph Melanopsamma pomiformis a pyrenomycete Hypocreales: Niessliaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Sordariomycetes/Hypocreales/Niessliaceae/Melanopsamma pomiformis/Melanopsamma pomiformisa pyrenomycetecolonyStachybotrys dematiaceous anamorph Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutswood (11-4)colony of Stachybotrys dematiaceous anamorph is saprobic on wood
wood wood is decayed by superficial, thickly clustered perithecium Melanopsamma pomiformis a pyrenomycete Hypocreales: Niessliaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Sordariomycetes/Hypocreales/Niessliaceae/Melanopsamma pomiformis/Melanopsamma pomiformisa pyrenomycetesuperficial, thickly clusteredperithecium Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutswood (11-4)superficial, thickly clustered perithecium is saprobic on wood
wood wood is decayed by effuse colony of Virgaria dematiaceous anamorph Virgaria nigra a dematiaceous anamorphic fungus Xylariales: Xylariaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Sordariomycetes/Xylariales/Xylariaceae/Virgaria nigra/Virgaria nigraa dematiaceous anamorphic funguseffusecolonyVirgaria dematiaceous anamorph Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutswood effuse colony of Virgaria dematiaceous anamorph is saprobic on wood
wood wood is decayed by colony of Xylohypha dematiaceous anamorph Xylohypha nigrescens a dematiaceous anamorphic fungus Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Xylohypha nigrescens/Xylohypha nigrescensa dematiaceous anamorphic funguscolonyXylohypha dematiaceous anamorph Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutswood colony of Xylohypha dematiaceous anamorph is saprobic on wood
wood (decayed) decayed wood is decayed by basidiome Foreign Candelabrochaete septocystidia a resupinate basidiomycete Polyporales: Phanerochaetaceae New British Records 135. Candelabrochaete septocystidia (Burt) Burdsall, Legon, N. & Pegler, D.N., 1996
 /Fungi/Basidiomycota/Agaricomycetes/Polyporales/Phanerochaetaceae/Candelabrochaete septocystidia/Candelabrochaete septocystidiaa resupinate basidiomycetebasidiome Foodplant / saprobeForeign /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsdecayedwood basidiome is saprobic on decayed wood
wood (rotten) rotten wood is decayed by effuse colony of Dictyosporium dematiaceous anamorph Dictyosporium toruloides a dematiaceous anamorphic fungus Pleosporales Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Dothideomycetes/Pleosporales/Dictyosporium toruloides/Dictyosporium toruloidesa dematiaceous anamorphic funguseffusecolonyDictyosporium dematiaceous anamorph Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsrottenwood (1-12)effuse colony of Dictyosporium dematiaceous anamorph is saprobic on rotten wood
wood (rotten) rotten wood is decayed by effuse colony of Graphium dematiaceous anamorph Graphium calicioides a dematiaceous anamorphic fungus Chaetothyriales: Herpotrichiellaceae Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
 /Fungi/Ascomycota/Eurotiomycetes/Chaetothyriales/Herpotrichiellaceae/Graphium calicioides/Graphium calicioidesa dematiaceous anamorphic funguseffusecolonyGraphium dematiaceous anamorph Foodplant / saprobe /Plantae/Tracheophyta/Magnoliopsida/Fagales/Juglandaceae/Juglans/Juglanswalnutsrottenwood (9-5)effuse colony of Graphium dematiaceous anamorph is saprobic on rotten wood

Juglans (walnuts) may also be included in 'fed on by' relations listed under the following higher taxa:

Author & YearTitleSource
Buczacki, S. & Harris, K., 1998Pests, Diseases & Disorders of Garden PlantsCollins Photoguide, 2nd edition edition, Collins
Ellis, M.B. & J.P., 1997Microfungi on Land Plants: An Identification Handbook2nd (New Enlarged) edition, 868pp, The Richmond Publishing Co. Ltd
Grove, W.B., 1935British Stem- and Leaf- Fungi: Coelomycetes Vol. I … Sphaeropsidales with hyaline conidiaVol I, 488pp, Cambridge University Press
Legon, N. & Pegler, D.N., 1996New British Records 135. Candelabrochaete septocystidia (Burt) BurdsallMycologist Vol 10 (4): 156-157.
Subtaxon Rank Featured
subtaxa		 No of
interactions		 No of
references
Juglans regia
Walnut
Species 28 trophisms
Taxonomic hierarchy:
GenusJuglans (walnuts)
FamilyJUGLANDACEAE (walnuts, hickories, wingnuts)
OrderFAGALES (forest trees)
SubclassEU-DICOTS (dicotyledonous flowering plants)
ClassMAGNOLIOPSIDA (flowering plants)
PhylumTRACHEOPHYTA (vascular plants)
KingdomPLANTAE (plants)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
NBNNBN (data.nbn.org.uk) has a distribution map for Juglans (walnuts)

Juglans (walnuts) may be included in identification literature listed under the following higher taxa:

Literature listed under the following higher taxa may be relevant to Juglans (walnuts):

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