Hymenoscyphus quintiniae (Dennis) Dennis 1964

Caption:

Details

Name scientific

Hymenoscyphus quintiniae (Dennis) Dennis, Persoonia 3 77 (1964)

Preferred name

Hymenoscyphus quintiniae (Dennis) Dennis 1964

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Endemic

Present

New Zealand

Political Region

Anon

Nomenclature

Authors

(Dennis) Dennis

Original authors

Dennis

Combination authors

Dennis

Publication place

Dennis, R.W.G. 1964: Remarks on the genus Hymenoscyphus S.F. Gray, with observations on sundry species referred by Saccardo and others to the genera Helotium, Pezizella or Phialea. Persoonia - Molecular Phylogeny and Evolution of Fungi 3(1): 29-80.

Year published

1964

Publication page

Nomenclatural code

ICN

Basionym

Helotium quintiniae Dennis 1961

Type locality

NZ holotype

Taxonomic rank

species

Canonical form

Hymenoscyphus quintiniae

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Leotiomycetes

Order

Helotiales

Family

Helotiaceae

Genus

Hymenoscyphus

Species

quintiniae

Synonyms

Helotium quintiniae Dennis 1961

Associations

View full associations record

Association type

Associated organism

Association source

has host

Fuchsia excorticata (J.R.Forst. & G.Forst.) L.f.

PDD (2 records from New Zealand.)

has host

Quintinia serrata A.Cunn.

PDD (1 records from New Zealand.)

Descriptions

Dennis, R.W.G. 1961: Some inoperculate Discomycetes from New Zealand. Kew Bulletin 15(2): 293-320.

Helotium quintiniae Dennis 1961

Latin

Apothecia gregaria, stipitata, cyathiformia, disco vix 1 mm. lato, castaneo, excipulo ex hyphis elongatis, parallelis, 5-6 µ crassis contexto. Asci clavati, octospori, 55-60 x 4-5 µ, apice subacutati, jodo coerulescentes; ascosporae monostichae vel subdistichae, hyalinae, continuae, ellipticae, 5 x 2 µ; paraphyses filiformes, 2 µ crassae, apicem versus baud incrassatae.

Notes

The densely clustered apothecia suggest the presence of some kind of stroma within the bark but I can detect neither sclerotium nor black line in sections cut through the bark beneath the clusters. I am, therefore, constrained to refer the species to Helotiun instead of to some genus of the Sclerotiniaceae as its appearance would at first sight suggest. Pseudohelotiurn microcenangium Penz. & Sacc. looks rather similar but with shorter stipe and apparently a different structure, 'contextu excipuli parenchymatico flavicante'.

Typification

In cortice Quintiniae serratae (Saxifragaceae), The Forks, Okarito, Westland, 21.4.1955, Dingley 19041 (typus).

Hymenoscyphus quintiniae (Dennis) Dennis 1964

Description

Spores 5 x 2 µ.

Notes

SERIES 6. Cupreum. Stipitate tropical or South temperate species on woody substrata, with excipulum of parallel hyphae, asci mostly I+ and small rod-like spores

Johnston, P.R. 2010: Kew Type Specimens - images and notes from P.R. Johnston, 2010.

Helotium quintiniae Dennis 1961

Notes

[Notes from Kew Type specimen, PRJ 2010] On bark amongst sooty moulds. There are other collections in PDD given this name, need to check them. Type with translucent brown apothecia with long, thin stipes, looks a bit like a Crocicreas. – but no mention of gelatinous tissue in description. Small apothecia barely visible in the photos