PDD 30663 – Russula griseoviolacea McNabb
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 30663
Type status:
Holotype
Specimen type:
Packet
Database record added:
06 June 2001
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Russula griseoviolacea
Determiner:
R.F.R. McNabb
Identification date:
Preferred name:
Russula griseoviolacea McNabb
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Russulales
Family:
Russulaceae
Identification type:
Determination
Type status:
Holotype
Associations:
has host Nothofagus menziesii (Hook.f.) Oerst.
Substrate:
ground
Other components
Active identification
Determined name:
Nothofagus menziesii (Hook.f.) Oerst.
Determiner:
Identification date:
Preferred name:
Lophozonia menziesii (Hook.f.) Heenan & Smissen
Division:
Tracheophyta
Class:
Magnoliopsida
Order:
Fagales
Family:
Nothofagaceae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Unknown
Standard locality
Location:
Karamea, Umere
Georeferences:
Latitude and Longitude (WGS84):
-41.2623 172.175
Verbatim locality:
Karamea, Umere
Verbatim collector:
R.F.R. McNabb
Standardised collector:
Robert F. R. McNabb
Collectors reference no.:
RFRM 134
Verbatim date:
1968/01/05
Start date:
1968-01-05
New Zealand Area Codes:
Nelson
Country:
New Zealand
Native lands:
Ngāi Tahu
Ngāti Apa ki te Rā Tō
Ngāti Rārua
Ngāti Toa Rangatira
Te Atiawa o Te Waka-a-Māui
Georeferences:
New Zealand Map Grid:
2440860E 5993470N (WGS84 -41.262498 172.175117)
Specimen notes
Public Note:
[McNabb:] no 134 (group23). Typical of the species, reddish-purple stipe, purplish cap. habitat gregarious under Nothofagus menziesii, Nelson, Karamea, Umere, 5.1.1968. Coll. RF.R. McNabb. Pileus cuticle composed of hyaline, thin-walled or slightly thick-walled smooth septate hairs 3-5um diam., to 150um long, tapering apically, terminal cells unspecialised, arising from inflated celled hyphae. Sphaerocyst layer not apparent and no differentiated sphaerocysts seen. Pilocystidia absent. Stipe cuticle of hyaline septate thin walled parallel to interwoven hyphae 2.5-5um diam., terminal cells inconspicuous, aggregated into clumps. No caulocystidia. Basidia hyaline, clavate 4-spored stergigmata to 1.5um long, 30-43.5 x 10.5-15um. Pleurocystidia sparse, scattered, not or only slightly projecting beyond basidia, thin-walled, hyaline, contents refractive in KOH, broadly fusiform with acuminate, strangulated or capitulate apices 60-78 x 7.5-10.5um. Cheilocystidia sparse, +- strangulated or irregularly cylindrical to 5um diam., thin-walled not spectacular. Spores broadly elliptical to ovate obliquely apiculate, apiculus to 1.5(-2)um long. 9.8-12 x 7.5-9.8. Ornamentation of truncated verrucae to 1.5um high, joined in groups of 2-3, or joined by moderately fine amyloid ridges and a very incomplete reticulum formed. Plage present. Note that ornamentation is less dense than in R. macrocystidiata and R. 'caulocystidiata' [JAC = pilocystidiata?] [Ridley] Basidiospores 8-9.25 x 7-8 um, [9.5-12 x 8.5-10.5 um], Qm= 1.18, broadly ellipsoid, Q1.10-1.32, subglobose to broadly ellipsoid, hyaline. Ornamented with moderately crowded, partially amyloid to amyloid, truncate spines to 1.75 um, mostly single or in small confluent groups, joined by low, fine, amyloid ridges, forming a partial reticulum. Suprahilar plage distinct amyloid, smooth, slightly raised c. 2.75 um wide. Hilar appendix obconical, oblique, 2(-2.75) um long. (Fig. 28a). The plage was distinct and amyloid; the ornamentation was type IIIB. [Cooper:] reddish purple stipe, purplish cap'. gill cystidia not seen. Cap hairs very obvious. Amyloid spot on spores very clear. Spines to 2um high. Spores length=7.4–10.3µm (µ=8.8, σ=0.6), width=6.7–7.7µm (µ=7.2, σ=0.3), Q=1.1–1.4µm (µ=1.2, σ=0.1), n=20. DCY not seen, SV-ve, fuchsinophile -ve. Ridley has 8-9.25 x 7-8, Q=1.18. The dried material has a dark magenta cap. Pat's 'cap colour fading on drying' is not a good character.
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