PDD 87408 – Agaricus sp. 'Riccarton (PDD 96222)' J.A. Cooper ined.
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 87408
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:
Agaricus sp. 'Riccarton (PDD 96222)'
Determiner:
J.A. Cooper
Identification date:
2016 (Verbatim: 2016)
Preferred name:
Agaricus sp. 'Riccarton (PDD 96222)' J.A. Cooper ined.
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Agaricales
Family:
Agaricaceae
Identification type:
Determination
Associations:
has host Cedrus libani
Substrate:
soil
Other identifications
Identification
Determined name:
Agaricus
Determiner:
J.A. Cooper
Identification date:
Preferred name:
Agaricus L. 1753
Active:
no
Identification type:
Determination
Identification
Determined name:
Agaricus meleagris cf.
Determiner:
J.A. Cooper
Identification date:
2011-05-08 (Verbatim: 8/5/2011)
Preferred name:
Agaricus moelleri Wasser
Active:
no
Identification type:
Determination
Other components
Active identification
Determined name:
Cedrus libani
Determiner:
Identification date:
Preferred name:
Cedrus libani A.Rich.
Division:
Tracheophyta
Class:
Pinopsida
Order:
Pinales
Family:
Pinaceae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Unknown
Standard locality
Location:
CASC, Lincoln
Georeferences:
Latitude and Longitude (WGS84):
-43.6406 172.476
Verbatim locality:
CASC, Lincoln
Verbatim collector:
J.A. Cooper
Standardised collector:
J. A. Cooper
Collectors reference no.:
JAC10320
Verbatim date:
2008/01/09
Start date:
2008-01-09
Country:
New Zealand
New Zealand Area Codes:
Mid Canterbury
Native lands:
Ngāi Tahu
Georeferences:
New Zealand Map Grid:
2467744E 5729499N (WGS84 -43.640767 172.476152)
Habitat:
Rural roadside
Keywords:
Rural roadside
Specimen notes
Public Note:
cap 7-9cm, white with sepia/fuscous black adpressed fibrils. Convex then upturned without umbo. Stem white, equal but enlarged slightly towards base, basal hyphae white. Stem 4-5cm x 15mm. Partial veil over gills persisting, elastic, on stem remaining as large ring either hanging or upturned, edge fimbriate, smooth or very faintly grooved. Smell slightly oily, taste slightly acidic. Schaeffers negative. KOH strongly yellow. Xanthodermati. Flesh on expsorure immediately very faintly yellow and then browning slightly, especially in stem apex. Same as 9481? Without cheilocystidia. In Kerrigan keys to praeclaresquamosus and treats meleagris as a synomym but that has cheilocystidia. Spores thick walled 6x4um, without germ pore. I'd say this is the same taxon as pictured by taylor - but does that have cheilocystidia? Even if this is praeclaresquamosus there is some debate, see Callac Mycologia, 97(2), 2005, pp. 416–424. The correct name for this is moelleri, unless this really is sensu Kerrigan (which is bigger in stature) in which case it doesn't have a name. A pacific coastal redwood species. Interesting to note that Sanchez (fungi non delineati 24) indicates that only constant characters in Agaricus are odour of intact fruitbody (not bruised), discolouration, form of annulus, cheilocystidia, KOH/Schaeffer. All other characters, including colour, are too variable. Recent work suggest praeclaresquomosus and meleagris as synonyms and variable. A. rotalis has different sequence (as rotalis and A. endoxanthus), but part of the same group.
J.A. Cooper
J.A. Cooper
Assigned reference numbers
JA Cooper Fungarium:
JAC10320
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