Botryotinia squamosa Vienn.-Bourg.
(Onion Leaf Rot - causative organism)

Interactions where Botryotinia squamosa is the dominant partner and gains from the process

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

Stage		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
Botrytis dematiaceous anamorph		colony of Botrytis dematiaceous anamorph infects and damages live, white-flecked leaf (esp. towards tip)			Allium	leeks, onions, garlics	Asparagales: Amaryllidaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Botryotinia squamosa/	Botryotinia squamosa	onion leaf rot - causative organism			colony	Botrytis dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium/	Allium	leeks, onions, garlics		live, white-flecked	leaf (esp. towards tip)		Minor
Botrytis dematiaceous anamorph		colony of Botrytis dematiaceous anamorph infects and damages live, white-flecked leaf (esp. towards tip)			Allium cepa	Onion	Asparagales: Amaryllidaceae	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/Leotiomycetes/Helotiales/Sclerotiniaceae/Botryotinia squamosa/	Botryotinia squamosa	onion leaf rot - causative organism			colony	Botrytis dematiaceous anamorph	Foodplant / pathogen		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium cepa/	Allium cepa	onion		live, white-flecked	leaf (esp. towards tip)		Major
Botrytis dematiaceous anamorph		colony of Botrytis dematiaceous anamorph infects and damages otting leaf			Allium cepa	Onion	Asparagales: Amaryllidaceae	British Parasitic Fungi, Moore, W.C., 1959	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Botryotinia squamosa/	Botryotinia squamosa	onion leaf rot - causative organism			colony	Botrytis dematiaceous anamorph	Foodplant / pathogen		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium cepa/	Allium cepa	onion		otting	leaf
Botrytis dematiaceous anamorph		colony of Botrytis dematiaceous anamorph infects and damages live, white-flecked leaf (esp. towards tip)			Allium porrum	Leek	Asparagales: Amaryllidaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Botryotinia squamosa/	Botryotinia squamosa	onion leaf rot - causative organism			colony	Botrytis dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium porrum/	Allium porrum	leek		live, white-flecked	leaf (esp. towards tip)		Minor
Botrytis dematiaceous anamorph		colony of Botrytis dematiaceous anamorph is saprobic on			Allium triquetrum	Three-cornered Garlic	Asparagales: Amaryllidaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Botryotinia squamosa/	Botryotinia squamosa	onion leaf rot - causative organism			colony	Botrytis dematiaceous anamorph	Foodplant / saprobe		Foreign	/Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium triquetrum/	Allium triquetrum	three-cornered garlic

Author & Year	Title	Source
Buczacki, S. & Harris, K., 1998	Pests, Diseases & Disorders of Garden Plants	Collins Photoguide, 2nd edition edition, Collins
Ellis, M.B. & J.P., 1997	Microfungi on Land Plants: An Identification Handbook	2nd (New Enlarged) edition, 868pp, The Richmond Publishing Co. Ltd
Moore, W.C., 1959	British Parasitic Fungi	430pp, Cambridge University Press

Botryotinia squamosa (Onion Leaf Rot - causative organism) may also be included in 'feeds on' relations listed under the following higher taxa:

FUNGI
(true fungi)

Botryotinia squamosa (Onion Leaf Rot - causative organism) may be included in 'fed on by' relations listed under the following higher taxa:

FUNGI
(true fungi)

Fungi s.l.
(fungi (in the broad sense))

Subtaxon				Rank	Featured subtaxa	No of interactions	No of references
Botrytis squamosa				Synonym

Taxonomic hierarchy:

Species	Botryotinia squamosa (Onion Leaf Rot - causative organism)
Genus	Botryotinia (a genus of discomycetes)
Family	SCLEROTINIACEAE (a family of discomycetes)
Order	HELOTIALES (an order of discomycetes and lichens)
Subclass	LEOTIOMYCETIDAE (powdery mildews)
Class	LEOTIOMYCETES (a class of fungi)
Subphylum	PEZIZOMYCOTINA (a subphylum of ascomycetes)
Phylum	ASCOMYCOTA (spore shooters, ascomycete)
Kingdom	FUNGI (true fungi)
Domain	Eukaryota (eukaryotes)
Life	BIOTA (living things)

Botryotinia squamosa is also a member of:
Discomycetes - discomycete fungi (via Helotiales)
Micromycetes - microfungi (via Ascomycota)
Fungi s.l. - fungi (in the broad sense) (via Fungi)
Lower Plants - lower plants (via Fungi s.l.)

NBN

NBN (data.nbn.org.uk) has a distribution map for Botryotinia squamosa (Onion Leaf Rot - causative organism)

Botryotinia squamosa (Onion Leaf Rot - causative organism) may be included in identification literature listed under the following higher taxa:

SCLEROTINIACEAE
(a family of discomycetes)

HELOTIALES
(an order of discomycetes and lichens)

LEOTIOMYCETIDAE
(powdery mildews)

ASCOMYCOTA
(spore shooters, ascomycete)

FUNGI
(true fungi)

Eukaryota
(eukaryotes)

BIOTA
(living things)

Discomycetes
(discomycete fungi)

Fungi s.l.
(fungi (in the broad sense))

Literature listed under the following higher taxa may be relevant to Botryotinia squamosa (Onion Leaf Rot - causative organism):

SCLEROTINIACEAE
(a family of discomycetes)

HELOTIALES
(an order of discomycetes and lichens)

LEOTIOMYCETIDAE
(powdery mildews)

ASCOMYCOTA
(spore shooters, ascomycete)

FUNGI
(true fungi)

Eukaryota
(eukaryotes)

BIOTA
(living things)

Discomycetes
(discomycete fungi)

Fungi s.l.
(fungi (in the broad sense))

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