Dermatea fumosa Cooke & W. Phillips 1879
Show more
Details
Dermatea fumosa Cooke & W. Phillips in Cooke, Grevillea 8 64 (1879)
Dermatea fumosa Cooke & W. Phillips 1879
Nomenclature
Cooke & W. Phillips
Cooke & W. Phillips
1879
64
ICN
Dermatea fumosa Cooke & W. Phillips 1879
NZ holotype
species
Dermatea fumosa
Classification
Synonyms
Associations
Descriptions
Dermatea fumosa Cooke & W. Phillips 1879
ITS gene tree showing 'Dermatea' fumosa phylogenetically isolated within Rhytismataceae.
Dermatea fumosa Cooke & W. Phillips 1879
Sparsa, sessilis. Cupulis demum expansis (2-4 mm), extus pallidis, granulosis, margine elevato, flexuoso. Hymenio murinaceo. Ascis clavatis, lone stipitatis. Sporidiis lanceolatis, rectis vel curvulis, endochromate quinque-divisis (.025-.035 x .004-.006 mm)
On rotten wood. Dunedin (207).
Dermatea fumosa Cooke & W. Phillips 1879
On rotten wood, Dunedin, Berggren 207 (type).
Ascomata scattered, erumpent, sessile, orbicular, 2-4 mm. diameter; disc flat, brown, pruinose, whitish with extruded spores when dry; receptacle dark brown, pruinose, composed of tightly woven hyphae, 1-2 µ wide, mingled with small subglobose cells. Ascogenous layer soft, ochraceous in section; flesh white, formed of slender, matted, hyaline hyphae; basal layer black, composed of larger black-walled cells, rooting in the wood. Asci clavate, thick-walled, very long-stalked and maturing at different levels, up to 250 x 18-20 µ, not blued by Melzer's reagent; ascospores 1-2-seriate in the ascus tip, elliptic-fusiform, hyaline, 24-32 x 4-6 µ becoming 3-septate and budding shortly elliptical, hyaline, secondary spores 2.5-4 x 1.5-2 µ after being extruded from the asci; interascal hyphae slender, hyaline, branched, 1 wide.
This certainly bears no resemblance to a Dermea, nor to any genus of Dermteaceae. In structure it recalls such genera as Phacidiella, Propolis, Cryptomyces, Cryptodiscus and Agyriella Ell. & Ev. (=Bisbyella Boed.), especially the last named in which the long asci become packed with secondary spores. Its true systematic position is not clear to me, however, and I prefer not to propose any transfer for the species at present.
It was described as occurring on rotten wood in New Zealand. No material has been seen and the description does not suggest a Dermea.
Dermatea fumosa Cooke & W. Phillips 1879
[Notes from Kew Type specimen, PRJ 2010] Surely this is the thing that is erumpent from bark and wood, sessile, with somewhat split margin, that I sometimes field label as ?lichen?? At a glance macroscopically it has that kind of look about it. Most of the collection is mouldy, but there are a few apothecia in a separate small envelope that are in better condition, and these certainly have the right look about them.
Sparsa, sessilis; cupulis demum expansis, 2-4 mm., extus pallidis, granulosis, margine elevato flexuoso; hymenio murinaceo; ascis clavatis, longe stipitatis; sporidiis lancoolatis, rectis vel curvulis, endochromate quinque-divisis, 25-35 x 4-6.
Taxonomic concepts
Dermatea fumosa Cooke & W. Phillips 1879
Dermatea fumosa Cooke & W. Phillips (1879)
Dermatea fumosa Cooke & W. Phillips 1879
Dermatea fumosa Cooke & W. Phillips (1879)
Dermatea fumosa Cooke & W. Phillips 1879
Dermatea fumosa Cooke & W. Phillips (1879)
Dermatea fumosa Cooke & W. Phillips 1879
Dermatea fumosa Cooke & W. Phillips 1879
Dermatea fumosa Cooke & W. Phillips 1879
Dermatea fumosa Cooke & W. Phillips (1879)
Dermea fumosa (Cooke & W. Phillips) J.W. Groves (1946)
Dermea fumosa (Cooke & W. Phillips) J.W. Groves (1946)
Scleroderris fumosa (Cooke & W. Phillips) Sacc. (1889)
Global name resources
Collections
Notes
taxonomic status
nom. dub. in some taxonomic resources, but recent NZ collections and sequences from them confirm this species is a Rhytismatales (see Descripions). It needs a new genus. Groves 1946 noted that the description "does not suggest a Dermea"; Dennis 1961 noted that this species "certainly bears no resemblance to a Dermea" [PRJ, 2018]
typification
On rotten wood,[New Zealand], Otago, Dunedin, Berggren 207 (type) S F51979, isotype K(M)
Metadata
1cb1b1e1-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
5 February 1993
15 January 2019