Ovulinia azaleae F.A. Weiss
(Rhododendron Petal Blight - causative organism)

Interactions where Ovulinia azaleae 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
apothecium (stromatic, single or in groups of 2-3)		stromatic, single or in groups of 2-3 apothecium is saprobic on			Kalmia latifolia	Mountain Laurel, Spoonwood, Mountain-laurel	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)		stromatic, single or in groups of 2-3		apothecium	Foodplant / saprobe			/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Kalmia latifolia/	Kalmia latifolia	mountain laurel, spoonwood, mountain-laurel
Ovulitis anamorph		Ovulitis anamorph causes spots on live, wilting petal			Kalmia latifolia	Mountain Laurel, Spoonwood, Mountain-laurel	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)				Ovulitis anamorph	Foodplant / spot causer			/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Kalmia latifolia/	Kalmia latifolia	mountain laurel, spoonwood, mountain-laurel		live, wilting	petal				(5-9)
sclerotium		sclerotium is saprobic on dead, fallen, collapsed, rotting petal			Kalmia latifolia	Mountain Laurel, Spoonwood, Mountain-laurel	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)				sclerotium	Foodplant / saprobe			/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Kalmia latifolia/	Kalmia latifolia	mountain laurel, spoonwood, mountain-laurel		dead, fallen, collapsed, rotting	petal				(autumn)
apothecium (stromatic, single or in groups of 2-3)		stromatic, single or in groups of 2-3 apothecium is saprobic on			Rhododendron	rhododendrons and azaleas	Ericales: Ericaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997 Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)		stromatic, single or in groups of 2-3		apothecium	Foodplant / saprobe		Confirmed abroad, probable in UK/Eire	/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Rhododendron/	Rhododendron	rhododendrons and azaleas
Ovulitis anamorph		Ovulitis anamorph causes spots on live, wilting petal			Rhododendron	rhododendrons and azaleas	Ericales: Ericaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997 Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)				Ovulitis anamorph	Foodplant / spot causer		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Rhododendron/	Rhododendron	rhododendrons and azaleas		live, wilting	petal				(5-9)
sclerotium		sclerotium is saprobic on dead, fallen, collapsed, rotting petal			Rhododendron	rhododendrons and azaleas	Ericales: Ericaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997 Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)				sclerotium	Foodplant / saprobe		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Rhododendron/	Rhododendron	rhododendrons and azaleas		dead, fallen, collapsed, rotting	petal				(autumn)
apothecium (stromatic, single or in groups of 2-3)		stromatic, single or in groups of 2-3 apothecium is saprobic on			Vaccinium corymbosum	Blueberry, Highbush Blueberry	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)		stromatic, single or in groups of 2-3		apothecium	Foodplant / saprobe		Foreign	/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Vaccinium corymbosum/	Vaccinium corymbosum	blueberry, highbush blueberry
Ovulitis anamorph		Ovulitis anamorph causes spots on live, wilting petal			Vaccinium corymbosum	Blueberry, Highbush Blueberry	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)				Ovulitis anamorph	Foodplant / spot causer		Foreign	/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Vaccinium corymbosum/	Vaccinium corymbosum	blueberry, highbush blueberry		live, wilting	petal				(5-9)
sclerotium		sclerotium is saprobic on dead, fallen, collapsed, rotting petal			Vaccinium corymbosum	Blueberry, Highbush Blueberry	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)				sclerotium	Foodplant / saprobe		Foreign	/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Vaccinium corymbosum/	Vaccinium corymbosum	blueberry, highbush blueberry		dead, fallen, collapsed, rotting	petal				(autumn)
apothecium (stromatic, single or in groups of 2-3)		stromatic, single or in groups of 2-3 apothecium is saprobic on			Vaccinium tenerellum	a house plant	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)		stromatic, single or in groups of 2-3		apothecium	Foodplant / saprobe			/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Vaccinium tenerellum/	Vaccinium tenerellum	a house plant
Ovulitis anamorph		Ovulitis anamorph causes spots on live, wilting petal			Vaccinium tenerellum	a house plant	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)				Ovulitis anamorph	Foodplant / spot causer			/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Vaccinium tenerellum/	Vaccinium tenerellum	a house plant		live, wilting	petal				(5-9)
sclerotium		sclerotium is saprobic on dead, fallen, collapsed, rotting petal			Vaccinium tenerellum	a house plant	Ericales: Ericaceae	Fungal foes in your garden no 58: Petal Blight on Azalea, Fox, R.T.V., 2004	/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Ovulinia azaleae/	Ovulinia azaleae	rhododendron petal blight (causative organism)				sclerotium	Foodplant / saprobe			/Plantae/Tracheophyta/Magnoliopsida/Ericales/Ericaceae/Vaccinium tenerellum/	Vaccinium tenerellum	a house plant		dead, fallen, collapsed, rotting	petal				(autumn)

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
Fox, R.T.V., 2004	Fungal foes in your garden no 58: Petal Blight on Azalea	Mycologist Vol 18 (4): 175-6.

Ovulinia azaleae (Rhododendron Petal Blight - causative organism) may also be included in 'feeds on' relations listed under the following higher taxa:

FUNGI
(true fungi)

Ovulinia azaleae (Rhododendron Petal Blight - 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))

Taxonomic hierarchy:

Species	Ovulinia azaleae (Rhododendron Petal Blight - causative organism)
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)

Ovulinia azaleae 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 Ovulinia azaleae (Rhododendron Petal Blight - causative organism)

Identification Works

Handling & Magnification	Author	Year	Title	Source
	Fox, R.T.V.	2004	Fungal foes in your garden no 58: Petal Blight on Azalea	Mycologist Vol 18 (4): 175-6.

Ovulinia azaleae (Rhododendron Petal Blight - causative organism) may also 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 Ovulinia azaleae (Rhododendron Petal Blight - 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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