PDD 238 – Leptothyrium phormii (Cooke) Grove
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 238
Specimen type:
Packet
Database record added:
07 June 2001
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Phoma phormicola Cooke
Determiner:
Identification date:
Preferred name:
Leptothyrium phormii (Cooke) Grove
Division:
Ascomycota
Class:
Dothideomycetes
Order:
Pleosporales
Family:
Didymellaceae
Identification type:
Determination
Associations:
has host Phormium tenax
Other components
Active identification
Determined name:
Phormium tenax
Determiner:
Identification date:
Preferred name:
Phormium tenax J.R.Forst. & G.Forst.
Division:
Tracheophyta
Class:
Liliopsida
Order:
Asparagales
Family:
Asphodelaceae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Unknown
Verbatim collector:
T. Kirk
Standardised collector:
T. Kirk
Verbatim date:
Country:
New Zealand
New Zealand Area Codes:
Stewart Island
Native lands:
Ngāi Tahu
Georeferences:
New Zealand Map Grid:
2118990E 5361990N (WGS84 -46.840121 167.875893)
Specimen notes
Public Note:
Phoma phormicola is an unpublished herbarium name used by Cooke on the label of his specimen 134 (collected on Phormium tenax from Stewart Island, duplicates in Kew and PDD 238). Based on an examination of the Kew duplicate, Grove (1921) considered this to be a synonym of Leptothyrium phormii, a species decribed from Phormium in cultivation in Belgium. Grove’s description suggests a fungus morphologically close to Pirostoma viridisporum, with subcuticular, black fruiting bodies, distinguished by conidial size (smaller in L. phormii). Examination of PDD 238 showed an acervular fungus, yellowish conidial ooze exposed after covering host tissue splits open, with conidia about 21-26 x 4-4.5 µm, cylindric, straight, apex broadly rounded, hyaline, 0-septate. [PRJ, 2012]
P.R. Johnston, 2012
P.R. Johnston, 2012
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