Peronospora gei Syd.
(a downy mildew)

Interactions where Peronospora gei 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
sporangium		sporangium parasitises live leaf			Geum rivale	Water Avens	Rosales: Rosaceae	Fungal Records Database of Britain and Ireland, Cooper, J. & Kirk, P.M.	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora gei/	Peronospora gei	a downy mildew				sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Geum rivale/	Geum rivale	water avens		live	leaf
sporangium (hypophyllous)		hypophyllous colony of sporangium causes spots on live, patchily chlorotic leaf			Geum rivale	Water Avens	Rosales: Rosaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora gei/	Peronospora gei	a downy mildew		hypophyllous	colony	sporangium	Foodplant / spot causer		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Geum rivale/	Geum rivale	water avens		live, patchily chlorotic	leaf		Minor
sporangium (hypophyllous)		hypophyllous colony of sporangium causes spots on live, patchily chlorotic leaf			Geum sp. cult.	cultivated geums	Rosales: Rosaceae	New or interesting British fungi, Dennis, R.W.G. & Wakefield, E.M., 1946 Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora gei/	Peronospora gei	a downy mildew		hypophyllous	colony	sporangium	Foodplant / spot causer		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Geum sp. cult./	Geum sp. cult.	cultivated geums		live, patchily chlorotic	leaf		Major
sporangium (hypophyllous)		hypophyllous colony of sporangium causes spots on live, patchily chlorotic leaf			Geum urbanum	Wood Avens, Herb Bennet	Rosales: Rosaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora gei/	Peronospora gei	a downy mildew		hypophyllous	colony	sporangium	Foodplant / spot causer		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Geum urbanum/	Geum urbanum	wood avens, herb Bennet		live, patchily chlorotic	leaf		Minor

Author & Year	Title	Source
Cooper, J. & Kirk, P.M.	Fungal Records Database of Britain and Ireland	www.fieldmycology.net/GBCHKLST/gbchklst.asp
Dennis, R.W.G. & Wakefield, E.M., 1946	New or interesting British fungi	TBMS Vol 29 (3): 141-166.
Ellis, M.B. & J.P., 1997	Microfungi on Land Plants: An Identification Handbook	2nd (New Enlarged) edition, 868pp, The Richmond Publishing Co. Ltd
Preece, T.F., 2002	A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles	33pp, British Mycological Society

Peronospora gei (a downy mildew) may be included in 'fed on by' relations listed under the following higher taxa:

CHROMISTA
(algae)

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

Taxonomic hierarchy:

Species	Peronospora gei (a downy mildew)
Genus	Peronospora (a genus of downy mildews)
Family	PERONOSPORACEAE (downy mildews)
Order	PERONOSPORALES (downy mildews and white rusts)
Class	PERONOSPOREA (a class of fungoid organisms)
Phylum	OOMYCOTA (a group of mainly plant-parasitic fungi)
Kingdom	CHROMISTA (algae)
Domain	Eukaryota (eukaryotes)
Life	BIOTA (living things)

Peronospora gei is also a member of:
Fungi s.l. - fungi (in the broad sense) (via Oomycota)
Micromycetes - microfungi (via Oomycota)
Lower Plants - lower plants (via Fungi s.l.)

NBN

NBN (data.nbn.org.uk) has a distribution map for Peronospora gei (a downy mildew)

Identification Works

Handling & Magnification	Author	Year	Title	Source
	Dennis, R.W.G. & Wakefield, E.M.	1946	New or interesting British fungi	TBMS Vol 29 (3): 141-166.

Peronospora gei (a downy mildew) may also be included in identification literature listed under the following higher taxa:

Peronospora
(a genus of downy mildews)

PERONOSPORACEAE
(downy mildews)

PERONOSPORALES
(downy mildews and white rusts)

OOMYCOTA
(a group of mainly plant-parasitic fungi)

CHROMISTA
(algae)

Eukaryota
(eukaryotes)

BIOTA
(living things)

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

Literature listed under the following higher taxa may be relevant to Peronospora gei (a downy mildew):

Peronospora
(a genus of downy mildews)

PERONOSPORACEAE
(downy mildews)

PERONOSPORALES
(downy mildews and white rusts)

OOMYCOTA
(a group of mainly plant-parasitic fungi)

CHROMISTA
(algae)

Eukaryota
(eukaryotes)

BIOTA
(living things)

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

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