Download Copy a link to this page Cite this record

Rosellinia hughesii L.E. Petrini 2003

Scientific name record
Names_Fungi record source
Is NZ relevant
This is the current name
This record has collections
This record has descriptions
This is indigenous
Show more

Click to collapse Details Info

Rosellinia hughesii L.E. Petrini, New Zealand J. Bot. 41 102 (2003)
Rosellinia hughesii L.E. Petrini 2003

Click to collapse Biostatus Info

Endemic
Present
New Zealand
Political Region

Click to collapse Nomenclature Info

L.E. Petrini
L.E. Petrini
2003
102
ICN
Rosellinia hughesii L.E. Petrini 2003
NZ holotype
species
Rosellinia hughesii
New Zealand. HOLOTYPE: South Island: Mid Canterbury: Kaituna, Waiwera County, on unknown host, 31 Oct 1963, H. C. Smith, PDD 22120

Click to collapse Classification Info

hughesii

Click to collapse Descriptions Info

Rosellinia hughesii L.E. Petrini 2003

Subiculum persistent, dark brown, wiry, with synnemata. Stromata (750)850 ± 60(950) µm high, (700)1007 ± 194(1250) µm wide (n = 10), cupulate, subglobose to globose, dark brown, black around the ostioles, solitary, often crowded, when young completely embedded in the subiculum, gradually emerging while growing. Ostioles finely papillate. Ectostroma 75-100 µm thick, black, hard, brittle. Entostroma cream, confined to base, absent in mature material. Perithecia detached and collapsed in mature material. Ascus apical rings (4.8)5.9 ± 0.5(6.7) µm high, upper width 4.3-4.8 µm, lower width 2.8-3.8 µm (n = 10), J+, dark blue. Ascospores (17.3)20.5 ± 1.4(24) mm long, (6.7)7.6 ± 0.5(8.6) µm wide (n = 60), inequilaterally ellipsoidal with one flat side, often broadly rounded, dark brown, with straight germ slit running over the whole spore length. Synnemata up to 1000 µm high, conidia 7-8 x 3-4.5 µm.
ANAMORPH: Dematophora.
HOST: Hoheria populnea.
MATRIX: Decorticated, heavily decomposed wood.
Subiculum perdurans, atrobrunneum, filo metallico simile, synnemata ferens. Stromata (750)850 ± 60(950) µm alta, (700)1007 ± 194(1250) µm lata, cupulata, subglobosa vel globosa, atrobrunnea, ostiola circa nigra, singularia, saepe conferta, in subiculo omnino dum juvena immersa, aetate paulatim emergentia. Ostiola laeviter papillata. Annulus apicalis asci (4.8)5.9 ± 0.5(6.7) µm altus, parte superiore 4.3-4.8 µm et inferiore 2.8-3.8 µm µm latus, iodo valde coerulescenti. Ascosporae (17.3)20.5 ± 1.4(24) µm longae, (6.7)7.6 ± 0.5(8.6) µm latae, asymmetrice ellipsoideae et lato applanato, late rotundatae, atrobrunneae, fissura germinativa recta totam ascosporam recurrenti praeditae. Status anamorphosis Dematophora.
ETYMOLOGY: In honour of the mycologist S. J. Hughes, who collected the paratype.
NOTES: Rosellinia hughesii is characterised by its Dematophora anamorph and the shape and size of its ascospores with a long germ slit. Only ascospores without slimy sheath or caps were observed. This, however, may be due to the age of the material. It would not be surprising in the future to find material having ascospores with slimy sheaths or caps.
Most Rosellinia species with a Dematophora anamorph have long, slender ascospores with a very short straight germ slit as seen in R. arcuata. In this respect, R. hughesii resembles R. buxi Fabre, as both have similar ascospore shapes. The latter, however, has larger ascospores with a short germ slit, taller stromata, and smaller synnemata. The size of conidia is almost the same in both species (Petrini 1993). Rosellinia hughesii differs from R. gisbornia by its persistent dark brown subiculum with the Dematophora conidial state, larger stromata, and smaller ascospores, and from R. mammaeformis by the larger stromata, persistent subiculum, and anamorph.
HOLOTYPE: South Island: Mid Canterbury: Kaituna, Waiwera County, on unknown host, 31 Oct 1963, H. C. Smith, PDD 22120; PARATYPE: South Island: Mid Canterbury: Kaituna Valley, Banks Peninsula, on Hoheria populnea, 15 Oct 1963, S. J. Hughes, PDD 21799.

Click to collapse Taxonomic concepts Info

Rosellinia hughesii L.E. Petrini 2003
Rosellinia hughesii L.E. Petrini (2003)
Rosellinia hughesii L.E. Petrini 2003
Rosellinia hughesii L.E. Petrini (2003)
Rosellinia hughesii L.E. Petrini 2003
Rosellinia hughesii L.E. Petrini
Rosellinia hughesii L.E. Petrini 2003
Rosellinia hughesii L.E. Petrini 2003
Rosellinia hughesii L.E. Petrini (2003)

Click to collapse Collections Info

Rosellinia hughesii L.E. Petrini 2003
[Not available]

Click to collapse Notes Info

typification
New Zealand. HOLOTYPE: South Island: Mid Canterbury: Kaituna, Waiwera County, on unknown host, 31 Oct 1963, H. C. Smith, PDD 22120

Click to collapse Metadata Info

5d1ee156-1993-11d6-8aee-dfd06341b942
scientific name
Names_Fungi
4 February 2002
30 June 2014
Click to go back to the top of the page
Top