BioImages: The Virtual Field-Guide (UK)

Dahlia (dahlias)

Subtaxa

Rank Taxon #webs
Species Dahlia pinnata Cav. (a dahlia) 1

Suggested Literature

Dahlia may be covered by literature listed under:

BIOTA
(living things)
Eukaryota
(eukaryotes)
PLANTAE
(plants)
SPERMATOPHYTA
(vascular plants)
MAGNOLIOPSIDA
(flowering plants)
MAGNOLIIDAE
(dicotyledonous flowering plants)
ASTERACEAE
(daisies, dandelions and thistles - formerly Compositae)

Feeding and other inter-species relationships

Associated with Dahlia:

leaf (dead) dead leaf is decayed by effuse colony of Trichoderma anamorph Trichoderma longibrachiatum - an anamorphic fungus (Hypocreales: Hypocreaceae) Ellis, M.B. & J.P., 1997
leaf (live) live leaf is spotted by pycnidium of Ascochyta coelomycetous anamorph Ascochyta dahliicola - a coelomycete Ellis, M.B. & J.P., 1997 [causes irregular, 1-4cm diam., grey or whitish spots]
leaf (live) live leaf is spotted by sorus Entyloma dahliae - Dahlia Smut Fungus (Entylomatales: Entylomataceae) UK/Ireland Ellis, M.B. & J.P., 1997 [causes round or ellptical, pallid to brown spots]
leaf-mine (end of) leaf-mine (end of) may house puparium Chromatomyia horticola - a leaf-mining fly (Diptera: Agromyzidae) UK/Ireland Spencer, K.A., 1972
leaf leaf is mined by larva Chromatomyia horticola - a leaf-mining fly (Diptera: Agromyzidae) UK/Ireland Spencer, K.A., 1972 [mine linear, whitish, both upper and lower surface]
leaf leaf is mined by larva Liriomyza strigata - a leaf-mining fly (Diptera: Agromyzidae) UK/Ireland Spencer, K.A., 1972 [mine follows midrib with short offshoots along lateral veins]
Photos petal (live) live petal may be infected and damaged by Itersonilia perplexans - an anamorphic basidiomycete (Filobasidiales: Filobasidiaceae) Ellis, M.B. & J.P., 1997 [causes "Flower Scorch"]
stem (dead) dead stem is decayed by effuse colony of Trichoderma anamorph Trichoderma longibrachiatum - an anamorphic fungus (Hypocreales: Hypocreaceae) Ellis, M.B. & J.P., 1997

Dahlia may be associated with more taxa listed at higher taxonomic level

MAGNOLIOPSIDA
(flowering plants)
MAGNOLIIDAE
(dicotyledonous flowering plants)
ASTERACEAE
(daisies, dandelions and thistles - formerly Compositae)

References

Ellis, M.B. & J.P., 1997 Microfungi on Land Plants: An Identification Handbook
Spencer, K.A., 1972 Diptera: Agromyzidae

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