PDD 60167 – Helotiaceae Rehm 1892 [1896]
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 60167
Specimen type:
Packet
Database record added:
11 April 2011
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Helotiaceae sp. "nikau"
Determiner:
P.R. Johnston
Identification date:
2019-09 (Verbatim: Sept 2019)
Preferred name:
Helotiaceae Rehm 1892 [1896]
Division:
Ascomycota
Class:
Leotiomycetes
Order:
Helotiales
Family:
Helotiaceae
Identification type:
Determination
Associations:
has host Rhopalostylis sapida
Other identifications
Identification
Determined name:
Crocicreas sp.
Determiner:
P.R. Johnston
Identification date:
Preferred name:
Crocicreas Fr.
Active:
no
Identification type:
Determination
Other components
Active identification
Determined name:
Rhopalostylis sapida
Determiner:
Identification date:
Preferred name:
Rhopalostylis sapida H.Wendl. & Drude
Division:
Tracheophyta
Class:
Liliopsida
Order:
Arecales
Family:
Arecaceae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Unknown
Standard locality
Location:
vic. Whangarei, Tangihua Forest
Georeferences:
Latitude and Longitude (WGS84):
-35.8516 174.111
Verbatim locality:
vic. Whangarei, Tangihua Forest
Verbatim collector:
P.R. Johnston
Standardised collector:
Peter R. Johnston
Collectors reference no.:
PRJ D823
Verbatim date:
1992/05/23
Start date:
1992-05-23
Country:
New Zealand
New Zealand Area Codes:
Northland
Native lands:
Ngāti Whātua
Georeferences:
New Zealand Map Grid:
2610980E 6593800N (WGS84 -35.851547 174.110873)
Specimen notes
Public Note:
Small, sessile, gelatinous-looking apothecia, erumpent from dead Rhopalostylis sapida fronds, with a scale-like flap of host tissue often retained at the base of the disc.
Excipulum with a Cyathicula-like anatomy. Long-celled, parallel hyphae embedded in thick gel, hyphae about 3-4.5 µm diam., end cells of excipular elements clavate, swollen to 5.5-7.5 µm diam., sometimes with dense yellow vacuolar contents in Melzers.
Two specimens have ITS sequences available. Based on an ITS phylogeny, this species is isolated within the Helotiaceae sensu Johnston et al. (2019)
PDD 60167 (D823) - culture and DNA sequences PDD 117536 (TTT2108) - culture and DNA sequences PDD 57939 PDD 63507 (D1103) PDD 60057 (D730)
Excipulum comprises long-cylindric cells in parallel rows and embdded in thick gel matrix. Paraphyses 1.5-3 µm diam., increasinging slightly and gradually toward the rounded apex, about same length as asci. Asci 120-150 x 10-13 µm, cylindric, apex more or less rounded, wall thickened at apex, J-, 8-spored. Ascospores 23-26 x 5-7.5 µm, elliptic-fusoid, flat one side in side view, slightly curved, widest point towards upper half, 0-septate, hyaline.
P.R. Johnston, 2019
External links
Peter Johnston Culture Collection:
D823
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