Crous, P.W.; Quaedvlieg, W.; Hansen, K.; Hawksworth, D.L.; Groenewald, J.Z. 2014: Phacidium and Ceuthospora (Phacidiaceae) are congeneric: taxonomic and nomenclatural implications. IMA Fungus 5(2): 173-193.
Details
Crous, P.W.; Quaedvlieg, W.; Hansen, K.; Hawksworth, D.L.; Groenewald, J.Z. 2014: Phacidium and Ceuthospora (Phacidiaceae) are congeneric: taxonomic and nomenclatural implications. IMA Fungus 5(2): 173-193.
10.5598/imafungus.2014.05.02.02
Article
Taxonomic concepts
Allantophomopsiella pseudotsugae (M. Wilson) Crous
Allantophomopsis pseudotsugae (M. Wilson) Nag Raj 1993
Discula pinicola (Naumov) Petr.
Phacidiella coniferarum G.G. Hahn 1957
Phacidiopycnis pseudotsugae (M. Wilson) G.G. Hahn 1957
Phacidium coniferarum (G.G. Hahn) DiCosmo, Nag Raj & W.B. Kendr. 1983
Phomopsis pseudotsugae M. Wilson 1920
Phomopsis strobi Syd. 1922
Potebniamyces coniferarum (G.G. Hahn) Smerlis 1962
Descriptions
Notes: Distinct from Apostrasseria and Allantophomopsis in that it lacks percurrent proliferation on its conidiogenous cells, and has inequilaterally fusiform or naviculate conidia.
Notes: Although we assume that Phacidiopycnis is the asexual morph of Potebniamyces, the type species of Phacidiopycnis, P. malorum, still needs to be recollected to confirm this assumption. For this reason the synonymy between these two generic names remains unconfirmed. If shown to be synonymous, the older name, Phacidiopycnis, will have preference for the holomorph (Johnston et al. 2014). Potebniamyces produces black, gelatinous discs, erumpent from submerged stromata in tree bark. Although DiCosmo et al. (1984) considered this genus a possible member of Phacidiaceae, Rhytismataceae or Dermateaceae, it appears to be a member of an independent family. As the majority of the families in Helotiales still lack molecular data, we consider it premature to introduce any new family name here to accommodate Potebniamyces. DiCosmo et al. (1984) discussed the morphological differences between Potebniamyces and Phacidium, and Wang et al. (2006b) suggested a possible sister relationship between the two genera.
Cited scientific names
- Allantophomopsiella Crous 2014
- Allantophomopsiella pseudotsugae (M. Wilson) Crous 2014
- Allantophomopsis pseudotsugae (M. Wilson) Nag Raj 1993
- Bulgaria Fr. 1822
- Bulgariaceae Fr. 1849
- Discula pinicola (Naumov) Petr. 1927
- Phacidiaceae Fr. 1849
- Phacidiales Höhn. 1917
- Phacidiella coniferarum G.G. Hahn 1957
- Phacidiella Potebnia 1912
- Phacidiopycnis Potebnia 1912
- Phacidiopycnis pseudotsugae (M. Wilson) G.G. Hahn 1957
- Phacidium coniferarum (G.G. Hahn) DiCosmo, Nag Raj & W.B. Kendr. 1983
- Phacidium mollerianum (Thüm.) Crous 2014
- Phaeobulgaria Seaver 1932
- Phomopsis pseudotsugae M. Wilson 1920
- Phomopsis strobi Syd. 1922
- Potebniamyces coniferarum (G.G. Hahn) Smerlis 1962
- Potebniamyces Smerlis 1962
- Pseudophacidium P. Karst. 1885
Metadata
e4561f40-b5dc-4ae9-9a1e-6d4daf8787a3
reference
Names_Fungi
12 November 2014
23 September 2019