Myrothecium roridum Tode
(Viola Stem Rot - causative organism)

Interactions where Myrothecium roridum 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
Myrothecium dematiaceous anamorph (abundant, sessile)		abundant, sessile sporodochium of Myrothecium dematiaceous anamorph infects and damages dry, brittle stem (base)			Dahlia	dahlias	Asterales: Asteraceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		abundant, sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Dahlia/	Dahlia	dahlias		dry, brittle	stem (base)		Minor
Myrothecium dematiaceous anamorph (abundant, sessile)		abundant, sessile sporodochium of Myrothecium dematiaceous anamorph infects and damages dry, brittle stem (base)			Lupinus	lupins	Fabales: Fabaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		abundant, sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Fabales/Fabaceae/Lupinus/	Lupinus	lupins		dry, brittle	stem (base)		Minor
Myrothecium dematiaceous anamorph (abundant, sessile)		abundant, sessile sporodochium of Myrothecium dematiaceous anamorph infects and damages dry, brittle stem (base)			Antirrhinum	snapdragons	Lamiales: Plantaginaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		abundant, sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Lamiales/Plantaginaceae/Antirrhinum/	Antirrhinum	snapdragons		dry, brittle	stem (base)		Minor
Myrothecium dematiaceous anamorph (sessile)		sessile sporodochium of Myrothecium dematiaceous anamorph causes shot holes on live leaf			Antirrhinum majus	Snapdragon	Lamiales: Plantaginaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / shot hole causer			/Plantae/Tracheophyta/Magnoliopsida/Lamiales/Plantaginaceae/Antirrhinum majus/	Antirrhinum majus	snapdragon	?	live	leaf
Myrothecium dematiaceous anamorph (sessile)		sessile sporodochium of Myrothecium dematiaceous anamorph causes shot holes on live leaf			Misopates orontium	Weasel’s-snout	Lamiales: Plantaginaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / shot hole causer			/Plantae/Tracheophyta/Magnoliopsida/Lamiales/Plantaginaceae/Misopates orontium/	Misopates orontium	weasel's-snout	?	live	leaf
Myrothecium dematiaceous anamorph (sessile, often confluent)		sessile, often confluent sporodochium of Myrothecium dematiaceous anamorph causes shot holes on live leaf			Viola riviniana	Common Dog-violet, Blunt-spurred Violet	Malpighiales: Violaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		sessile, often confluent	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / shot hole causer			/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola riviniana/	Viola riviniana	common dog-violet, blunt-spurred violet		live	leaf				(6-7)
Myrothecium dematiaceous anamorph (sessile, often confluent)		sessile, often confluent sporodochium of Myrothecium dematiaceous anamorph causes shot holes on live leaf			Viola tricolor	Wild Pansy	Malpighiales: Violaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		sessile, often confluent	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / shot hole causer			/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola tricolor/	Viola tricolor	wild pansy		live	leaf				(6-7)
Myrothecium dematiaceous anamorph (abundant, sessile)		abundant, sessile sporodochium of Myrothecium dematiaceous anamorph infects and damages dry, brittle stem (base)			Viola x wittrockiana (V. altaica x lutea x tricolor)	garden pansy	Malpighiales: Violaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		abundant, sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola x wittrockiana (V. altaica x lutea x tricolor)/	Viola x wittrockiana (V. altaica x lutea x tricolor)	garden pansy		dry, brittle	stem (base)
Myrothecium dematiaceous anamorph (abundant, sessile)		abundant, sessile sporodochium of Myrothecium dematiaceous anamorph infects and damages dry, brittle stem (base)			[Viola sp. cult.]	cultivated violets	Malpighiales: Violaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		abundant, sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola sp. cult./	Viola sp. cult.	cultivated violets		dry, brittle	stem (base)
Myrothecium dematiaceous anamorph (sessile, often confluent)		sessile, often confluent sporodochium of Myrothecium dematiaceous anamorph causes shot holes on live leaf			[Viola sp. cult.]	cultivated violets	Malpighiales: Violaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		sessile, often confluent	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / shot hole causer		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola sp. cult./	Viola sp. cult.	cultivated violets		live	leaf				(6-7)
Myrothecium dematiaceous anamorph (abundant, sessile)		abundant, sessile sporodochium of Myrothecium dematiaceous anamorph infects and damages dry, brittle stem (base)			Delphinium	delphiniums	Ranunculales: Ranunculaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		abundant, sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Ranunculales/Ranunculaceae/Delphinium/	Delphinium	delphiniums		dry, brittle	stem (base)		Minor
Myrothecium dematiaceous anamorph (abundant, sessile)		abundant, sessile sporodochium of Myrothecium dematiaceous anamorph infects and damages dry, brittle stem (base)			Lycopersicon esculentum	Tomato	Solanales: Solanaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		abundant, sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Solanales/Solanaceae/Lycopersicon esculentum/	Lycopersicon esculentum	tomato	?	dry, brittle	stem (base)
Myrothecium dematiaceous anamorph (abundant, sessile)		abundant, sessile sporodochium of Myrothecium dematiaceous anamorph infects and damages dry, brittle stem (base)			Solanum tuberosum	Potato	Solanales: Solanaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998	/Fungi/Ascomycota/Sordariomycetes/Hypocreales/Myrothecium roridum/	Myrothecium roridum	viola stem rot - causative organism		abundant, sessile	sporodochium	Myrothecium dematiaceous anamorph	Foodplant / pathogen			/Plantae/Tracheophyta/Magnoliopsida/Solanales/Solanaceae/Solanum tuberosum/	Solanum tuberosum	potato	?	dry, brittle	stem (base)

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

Myrothecium roridum (Viola Stem Rot - causative organism) may also be included in 'feeds on' relations listed under the following higher taxa:

FUNGI
(true fungi)

Myrothecium roridum (Viola Stem Rot - causative organism) may be included in 'fed on by' relations listed under the following higher taxa:

FUNGI
(true fungi)

Pyrenomycetes
(charcoal fungi)

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

Taxonomic hierarchy:

Anamorphic Species	Myrothecium roridum (Viola Stem Rot - causative organism)
Genus	Myrothecium (a genus of dematiaceous anamorphic fungi)
Order	HYPOCREALES (an order of ascomycetes and lichens)
Subclass	SORDARIOMYCETIDAE (a subclass of ascomycetes and lichens)
Class	SORDARIOMYCETES (a class of ascomycetes)
Subphylum	PEZIZOMYCOTINA (a subphylum of ascomycetes)
Phylum	ASCOMYCOTA (spore shooters, ascomycete)
Kingdom	FUNGI (true fungi)
Domain	Eukaryota (eukaryotes)
Life	BIOTA (living things)

NBN

NBN (data.nbn.org.uk) has a distribution map for Myrothecium roridum (Viola Stem Rot - causative organism)

Myrothecium roridum (Viola Stem Rot - causative organism) may be included in identification literature listed under the following higher taxa:

HYPOCREALES
(an order of ascomycetes and lichens)

ASCOMYCOTA
(spore shooters, ascomycete)

FUNGI
(true fungi)

Eukaryota
(eukaryotes)

BIOTA
(living things)

Dematiaceous Hyphomycetes
(dematiaceous anamorphic fungi)

Anamorphic fungi
(mitosporic fungi)

Pyrenomycetes
(charcoal fungi)

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

General Works

Author	Year	Title	Source
Brooks, F.T.	1945	Notes on the pathogenicity of Myrothecium roridum Tode ex Fr.	TBMS Vol 27 (3+4): 155-157.

Literature listed under the following higher taxa may also be relevant to Myrothecium roridum (Viola Stem Rot - causative organism):

Myrothecium
(a genus of dematiaceous anamorphic fungi)

HYPOCREALES
(an order of ascomycetes and lichens)

ASCOMYCOTA
(spore shooters, ascomycete)

FUNGI
(true fungi)

Eukaryota
(eukaryotes)

BIOTA
(living things)

Dematiaceous Hyphomycetes
(dematiaceous anamorphic fungi)

Anamorphic fungi
(mitosporic fungi)

Pyrenomycetes
(charcoal fungi)

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

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