PDD 95538 – Sirobasidium rubrofuscum (Berk.) P. Roberts 1997
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 95538
Specimen type:
Packet
Loan status:
Active
Database record added:
01 April 2010
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Sirobasidium rubrofuscum
Determiner:
J.A. Cooper
Determiners reference no.:
JAC11087
Identification date:
Preferred name:
Sirobasidium rubrofuscum (Berk.) P. Roberts 1997
Division:
Basidiomycota
Class:
Tremellomycetes
Order:
Tremellales
Family:
Sirobasidiaceae
Identification type:
Determination
Associations:
has host Diatrype
Substrate:
branch
Other components
Active identification
Determined name:
Diatrype
Determiner:
Identification date:
Preferred name:
Diatrype Fr.
Division:
Ascomycota
Class:
Sordariomycetes
Order:
Xylariales
Family:
Diatrypaceae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Unknown
Standard locality
Location:
Lake Papaitonga, Levin
Georeferences:
Latitude and Longitude (WGS84):
-40.642 175.23
Verbatim locality:
Lake Papaitonga, Levin
Verbatim collector:
K. Taylor
Standardised collector:
K. Taylor
Verbatim date:
2009/05/11
Start date:
2009-05-11
Country:
New Zealand
New Zealand Area Codes:
Wellington
Native lands:
Muaūpoko
Ngāti Raukawa ki te Tonga
Ngāti Toa Rangatira
Georeferences:
New Zealand Map Grid:
2698945E 6060093N (WGS84 -40.64382 175.234357)
Specimen notes
Public Note:
New to NZ. Macroscopically similar to the reddish NZ tremellas, e.g. T. vesiculosa. S.r. is is synonymous with T. sanguineum according to Roberts. According to Kobayasi TMSJ 1961, S. magnum is brown, which brings into doubt the picture of a red S. magnum in the Thai Fungal Diversity book. S. sanguineum and indicum are the only red/brown taxa. Kobayasi's table shows how little difference there is between described taxa. Note that Roberts says the navicular cells are actually deciduous sterigmata and the spores are spherical, and Bandoni 1957 refers to them as epibasidia. Maybe, but then why are the navicular cells germinating? Basidia with one longitudinal septum. 4-'spored'. I'd say naviculate cells are primary basidia produced without sterigma (?) and spherical cells are secondary. Primary spores length=18.4–20.9µm (µ=19.1, σ=0.7), width=7.6–9.1µm (µ=8.4, σ=0.5), Q=2.1–2.5µm (µ=2.3, σ=0.1), n=11. Secondary spores 10um in diameter. Also seems to be familiar looking anamorph conidia in the tissue (Peter R. had spores looking like this for something). Reported to MAF 2/07/2010. This has a sequence in Tremella Clade 1 (T. exigua) of Liu et al (SIM81) and not in Sirobasidiaceae (with Fibulobasidum in it) but the type of Sirobasidium is sanguineum (not sequenced) which is surely close to this species. So I'd accept the broader concept of Sirobasidiaceae within Tremellaceae, or Sirobasidiaceae is currently incorrectly placed.
J.A. Cooper
J.A. Cooper
Assigned reference numbers
JA Cooper Fungarium:
JAC11087
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