Phoma Sacc.
(a form genus of coelomycetes)

Subtaxon	Rank	No of images	No of ID refs
Phoma evemiae a coelomycetous anamorph	Anamorphic Species		1 ident. refs
Phoma lobariae a lichenicolous coelomycete	Anamorphic Species		1 ident. refs
Phoma prunicola Apple and Pear Leaf Spot	Anamorphic Species		1 ident. refs
Phoma (unidentified) Unidentified Phoma Coelomycetes	Unidentified	15 images

Taxonomic hierarchy:

Form genus	Phoma (a form genus of coelomycetes)
Order	PLEOSPORALES (an order of ascomycetes and lichens)
Subclass	DOTHIDEOMYCETIDAE (a subclass of fungi)
Class	DOTHIDEOMYCETES (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)

Phoma 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.)

Identification Works

	Author	Year	Title	Source
	Boerema, G.H., de Gruyter, J., Noordeloos, M.E. & Hamers, M.E.C.	2004	Phoma identification manual	448pp, CABI
	Hawksworth, D.L.	1981	The lichenicolous Coelomycetes	Bull. Br. mus. nat. hist. bot. Vol 9 (1): 1-98.

Phoma (a form genus of coelomycetes) may also be included in identification literature listed under the following higher taxa:

PLEOSPORALES
(an order of ascomycetes and lichens)

DOTHIDEOMYCETES
(a class of ascomycetes)

ASCOMYCOTA
(spore shooters, ascomycete)

FUNGI
(true fungi)

Eukaryota
(eukaryotes)

BIOTA
(living things)

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

NBN (data.nbn.org.uk) has a distribution map for Phoma (a form genus of coelomycetes)

BioInfo (www.bioinfo.org.uk) has 79 host/parasite/foodplant and/or other relationships for Phoma (a form genus of coelomycetes)

The commonest form-genus of coelomycetes, Phoma form black medium thickness-walled, erumpent pycnidia on (usually) dead stems (occasionally leaves). The pycnidia produce simple conidia generally less than 15µm long, on short or imperceptible conidiophores. The conidia often contain two oil-droplets.

Many of the species are host limited (or at least there are different names which have been applied to Phoma on different hosts).

Phoma has been used as a taxonomic dumping ground for any coelomycete with simple hyaline spores.

Coelomycetes with medium thickness walled, erumpent pycnidia and simple, hyaline conidia generally less than 15µm long, on short or imperceptible conidiophores. Mostly on dead stems.

The similar Phomopsis produces slightly larger and tougher pycnidia but is best distinguished by the longer conidiophores.

Phyllosticta, with thinner walled pycnidia, is the equivalent on leaves.

Cultural studies are needed to identify most spp.

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Taxonomic hierarchy:

Phoma is also a member of:

Identification Works

BioImages - Virtual Field-Guide (UK)