BioImages: The Virtual Field-Guide (UK)

Phoma Sacc., 1880 (a form genus of coelomycetes)

Notes (MWS) 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.
Diagnostic features 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.

Sets of Photographs

These relate to individual finds ("biological records") of the organism.

Taxon Summary # images # photos # microphotos Date Vice-county Country
Phoma Imperfect stage 15 11 4 30 Jun 2010 Dorset England

Subtaxa

Rank Taxon #photos #macrophotos #microphotos #refs

Suggested Literature

Identification Works

BioInfo BioInfo (www.bioinfo.org.uk) has 2 general literature references to Phoma (a form genus of coelomycetes)

Phoma may also be covered by literature listed under:

BIOTA
(living things)
Eukaryota
(eukaryotes)
FUNGI SS.
(true fungi)
ASCOMYCOTA
(spore shooters)
ASCOMYCETES
(spore shooters)
Coelomycetes (via Phoma) Fungi sl.

BioInfo BioInfo (www.bioinfo.org.uk) has 117 feeding and other relationships of Phoma (a form genus of coelomycetes)

Creative Commons Licence
Unless otherwise expressly stated, all original material on the BioImages website by Malcolm Storey is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.0 UK: England & Wales License .