PDD 96401 – Polyporus nigrocristatus E. Horak & Ryvarden
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 96401
Specimen type:
Packet
Loan status:
Active
Database record added:
27 July 2012
Database record updated:
26 February 2024
Components
Primary component
Active identification
Determined name:
Polyporus nigrocristatus
Determiner:
J.A. Cooper
Identification date:
2010-04-25 (Verbatim: 2010/04/25)
Preferred name:
Polyporus nigrocristatus E. Horak & Ryvarden
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Polyporales
Family:
Polyporaceae
Identification type:
Determination
Associations:
has host Nothofagus solandri
Substrate:
dead fallen trunk
Other components
Active identification
Determined name:
Nothofagus solandri
Determiner:
J.A. Cooper
Identification date:
2010-04-23 (Verbatim: 23/04/2010)
Preferred name:
Fuscospora solandri
Division:
Tracheophyta
Class:
Magnoliopsida
Order:
Fagales
Family:
Nothofagaceae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Field
Verbatim locality:
Cragieburn, Dracophyllum Flat Track
Verbatim collector:
J.A. Cooper
Standardised collector:
J. A. Cooper
Collectors reference no.:
JAC11312
Verbatim date:
2010/04/23
Start date:
2010-04-23
Country:
New Zealand
New Zealand Area Codes:
Mid Canterbury
Native lands:
Ngāi Tahu
Georeferences:
New Zealand Map Grid:
2404693E 5782561N (WGS84 -43.156991 171.704988)
Altitudes:
from 918m
Habitat:
Beech-broadleaved forest
Specimen notes
Public Note:
cap with radial raised ridges, many black. Pores with a grey/yellow/green hue. 7 pores per mm. Flesh 6mm thick. Stipe has a brown (not black) cuticle covered with an easily removable tomentum. This feature shifts it from Synopsis Fungorum v10 'melanopus' surely? And the flesh is much thicker than Ryvarden/Horak describe - although that appears to be absed on a single collection. Hymenium with some thick walled hyphae with dark brown lumen, running parallel to the tubes. Spores length=6.1-7.2µm (µ=6.6, σ=0.3), width=3.2-3.7µm (µ=3.6, σ=0.2), Q=1.7-2.0µm (µ=1.8, σ=0.1), n=9. These spore measurements are closer to P. xerophyllus (3.5-4um wide) rather than the holotype of P. n (2.5-3um wide). So there are a number of features highlighted by Ryvarden and Horak that bridge the gap to xerophyllus (which for Hood etc has a broad synonymy under dictyopus). I think the crested nature of the cap makes it worthy of recognition, but the quoted supporting characters are not good.
J.A. Cooper
J.A. Cooper
Assigned reference numbers
JA Cooper Fungarium:
JAC11312
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