Podosphaera clandestina (Wallr.) Lev.
(Hawthorn Mildew)

Interactions where Podosphaera clandestina 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
cleistothecium		cleistothecium parasitises live leaf of seedling			Crataegus	hawthorns	Rosales: Rosaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Podosphaera clandestina/	Podosphaera clandestina	hawthorn mildew				cleistothecium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Crataegus/	Crataegus	hawthorns		live	leaf	seedling			(10-11)
cleistothecium		cleistothecium parasitises live leaf of soft shoot of hedge tree			Crataegus	hawthorns	Rosales: Rosaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Podosphaera clandestina/	Podosphaera clandestina	hawthorn mildew				cleistothecium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Crataegus/	Crataegus	hawthorns		live	leaf of soft shoot	hedge tree			(10-11)
cleistothecium		cleistothecium parasitises live leaf			Pyracantha coccinea	Firethorn	Rosales: Rosaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Podosphaera clandestina/	Podosphaera clandestina	hawthorn mildew				cleistothecium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Pyracantha coccinea/	Pyracantha coccinea	firethorn		live	leaf				(10-11)
		parasitises			Spiraea douglasii	Steeplebush	Rosales: Rosaceae	An Introduction to British Powdery Mildews, Ing, B., 1990	/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Podosphaera clandestina/	Podosphaera clandestina	hawthorn mildew					Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Spiraea douglasii/	Spiraea douglasii	steeplebush
		parasitises			Spiraea salicifolia	Bridewort	Rosales: Rosaceae	An Introduction to British Powdery Mildews, Ing, B., 1990	/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Podosphaera clandestina/	Podosphaera clandestina	hawthorn mildew					Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Rosales/Rosaceae/Spiraea salicifolia/	Spiraea salicifolia	bridewort

Author & Year	Title	Source
Ellis, M.B. & J.P., 1997	Microfungi on Land Plants: An Identification Handbook	2nd (New Enlarged) edition, 868pp, The Richmond Publishing Co. Ltd
Ing, B., 1990	An Introduction to British Powdery Mildews	Mycologist Vol 4 (1) et seq.

Podosphaera clandestina (Hawthorn Mildew) may also be included in 'feeds on' relations listed under the following higher taxa:

FUNGI
(true fungi)

Podosphaera clandestina (Hawthorn Mildew) may be included in 'fed on by' relations listed under the following higher taxa:

ERYSIPHACEAE
(powdery mildews)

FUNGI
(true fungi)

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

Subtaxon				Rank	Featured subtaxa	No of interactions	No of references
Podosphaera clandestina var aucupariae Whitebeam Mildew				Variety		4 trophisms
Podosphaera clandestina var clandestina Hawthorn Mildew				Variety		4 trophisms

Taxonomic hierarchy:

Species	Podosphaera clandestina (Hawthorn Mildew)
Genus	Podosphaera (a genus of powdery mildews)
Family	ERYSIPHACEAE (powdery mildews)
Order	ERYSIPHALES (powdery mildews)
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)

Podosphaera clandestina is also a member of:
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 Podosphaera clandestina (Hawthorn Mildew)

Podosphaera clandestina (Hawthorn Mildew) may be included in identification literature listed under the following higher taxa:

ERYSIPHALES
(powdery mildews)

LEOTIOMYCETIDAE
(powdery mildews)

ASCOMYCOTA
(spore shooters, ascomycete)

FUNGI
(true fungi)

Eukaryota
(eukaryotes)

BIOTA
(living things)

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

Literature listed under the following higher taxa may be relevant to Podosphaera clandestina (Hawthorn Mildew):

ERYSIPHACEAE
(powdery mildews)

ERYSIPHALES
(powdery mildews)

LEOTIOMYCETIDAE
(powdery mildews)

ASCOMYCOTA
(spore shooters, ascomycete)

FUNGI
(true fungi)

Eukaryota
(eukaryotes)

BIOTA
(living things)

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

BioImages

BioImages (www.bioimages.org.uk) has 29 images of Podosphaera clandestina (Hawthorn Mildew)

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