PDD 30653 – Russula roseopileata McNabb
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 30653
Type status:
Holotype
Specimen type:
Packet
Database record added:
11 April 2011
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Russula roseopileata
Determiner:
R.F.R. McNabb
Identification date:
Preferred name:
Russula roseopileata 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 152 (Russula)
Verbatim date:
1969/01/08
Start date:
1969-01-08
Country:
New Zealand
New Zealand Area Codes:
Buller
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:
2440900E 5993560N (WGS84 -41.261691 172.175605)
Specimen notes
Public Note:
[McNabb:] Holotype = #152 (as roseola in Book3, p 1) . Pileus 3-3.5cm, slightly centrally depressed, smooth, no veilar remnants, finely innately pruinose under lens, margins not radially marked, pallid pinkish rose with area of white patches. Gills white, moderately crowded. Lamellae simple, lamellulae rarely present, to 4mm deep, not discoloured. Stipe 3-3.5cm long, solid, pure white, dry, 7-10mm diam., slightly expanded basally, flesh white. Context unchanging. Taste gills and context - extremely acrid. Chemical characters formalin n.r., phenol n.r., FeSO4 salmon pink, guiacol on stipe base pinkish red, KOH on pileus orange tints replacing pink, KOH on context n.r., NH4OH on pileus and context n.r. Habitat under Nothofagus menziesii, Nelson, Karamea, Umere, 8.1.1969, Coll. R.F.R. McNabb, Painting 152 (JAC Missing - where are these paintings?). Pileus cuticle a +- trichodermium of hyphae and pilocystidia with highly refractive content. Hyphae hyaline, thin-walled, septate, c2.5-3.5um diam. without refractive contents in KOH, terminal cells not specialised. 40-100 x 6-10um. Pilocystidia extremely numerous +- clavate, contents refractive in KOH, hyaline, thin-walled. Cuticle of stipe a rather disorganised palisade of hyphae and caulocystidia similar i size and shape to those of the pileus. Basidia hyaline, clavate 4-spored 39-52 x 12-15um. Pleurocystidia numerous, scattered, conspicuous, hyaline, thin-walled, with yellowish crystals in KOH, fusiform with acuminate or slightly strangulate apices 56-83 x 10.5-13.5um, not or only slightly projecting beyond basidia. Cheilocsytidia same as pleurocystidia in shape etc, but shorter, crowded on gill edge. Spores broadly elliptical to ovate, obliquely apiculate, apiculus to 1.5um long, -(2), 9.8-12 x 9-10.5um. Ornamentation of coarse xxx amyloid spines to 1.5(-2) um high, solitary or confluent groups of 2-3, almost always joined by fine amyloid ridges to form an almost complete reticulum. Ornamentation lower in plage area. Note: microscopically this species is close to R. pilocystidiata. Plage present, rather inconspicuous. [Ridley:] Basidiospores (8-)9-95 x 7-8.5 um, [10-12 x 9-10.5um] Qm = 1.15, broadly ellipsoid, Q=1.08-123, subglobose to broadly ellipsoid, hyaline. Ornamented with moderately crowded partially amyloid to amyloid, truncate spines to 1.75um high, mostly single or in small confluent groups, joined by low, moderately fine to coarse, amyloid ridges occasionally isolated, forming an almost complete reticulum. Suprahilar plage difficult to observe, smooth to slightly flaking, weakly amyloid or occasionally amyloid, c. 2 um wide. Hilar appendix obconical, oblique, to 2 um long. (Fig. 28c). As noted the plage was difficult to see and its amyloid reaction varied from just perceptibly grey, to pale blue black. The ornamentation approached IIIA. [Cooper:] No spore print. Subcutis white. SV weakly positive, broad, septate. McNabb's illustration of the cutis is good, but missing the longer septate cystidia, and it is unusual in having a mass of very refractive elements. Fuchsinophile granules not seen. Spores with poorly defined plage and weakly amyloid irregular spot. Spores length=8.2–10.4µm (µ=9.0, σ=0.6), width=7.1–8.6µm (µ=7.8, σ=0.4), Q=1.1–1.3µm (µ=1.16, σ=0.06), n=20, ornamentation to 1.4um
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