PDD 26628 – Russula griseoviridis McNabb
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 26628
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 griseoviridis
Determiner:
R.F.R. McNabb
Identification date:
Preferred name:
Russula griseoviridis McNabb
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Russulales
Family:
Russulaceae
Identification type:
Determination
Type status:
Holotype
Associations:
has host Leptospermum ericoides
Substrate:
ground
Other components
Active identification
Determined name:
Leptospermum ericoides
Determiner:
Identification date:
Preferred name:
Kunzea ericoides (A.Rich.) Joy Thomps.
Division:
Tracheophyta
Class:
Magnoliopsida
Order:
Myrtales
Family:
Myrtaceae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Unknown
Standard locality
Location:
Titirangi, Atkinson Park
Georeferences:
Latitude and Longitude (WGS84):
-36.942330 174.657734
Verbatim locality:
Titirangi, Atkinson Park
Verbatim collector:
R.F.R. McNabb
Standardised collector:
Robert F. R. McNabb
Collectors reference no.:
RFRM 14 (Russula)
Verbatim date:
1967/02/13
Start date:
1967-02-13
Country:
New Zealand
New Zealand Area Codes:
Auckland
Native lands:
Ngāti Tamaoho
Ngāti Tamaterā
Ngāti Whātua
Ngāti Whātua o Ōrākei
Te Ākitai Waiohua
Te Kawerau a Maki
Georeferences:
New Zealand Map Grid:
2658010E 6471520N (WGS84 -36.946265 174.657607)
Specimen notes
Public Note:
[McNabb:] Holotype #14. #5, 8(pdd26622), 14 (this), 27(pdd26638),34(pdd26643), 35(pdd26644), 57, 42(pdd26650), 103(pdd26613) ,287? (pdd29398). Pileus 7.5-10. cm diam., infundibuliform, rather mucilaginous remnants present, concentrated in centre, areolately cracked, background colour greyish-green, paling towards margins, velar remnants c1E3 (In old fructs in dry weather the pileus becomes suffused with greyish-red tints (c 12D4) particularly towards margins and the geeenish colours are not so prominent). Margins not radiately grooved and ridged when fresh but in old and drier fructs the cuticle tents to shrink and may leave the margins somewhat grooved and ridged. GILLS: crowded, rather thick, brittle, lamellae simple or occasionally forked near stipe, not forked near margins, lamellulae very occasionally present, white, becoming creamy, with edges sometimes discoloured brownish. STIPE: 4-7 cm long, stout, equal, 1.7-2.8 cm diam, dry, no indications of velar remnants, annulus absent, normally solid but becoming hollowed by insects finely subtomentose to velutinate, delicate shades of pallid greyish-rose, (c 12B2-3 to C2-3) occasionally entirely pallid smoke grey. Flesh white, unchanging. CONTEXT OF PILEUS: white, unchanging. SMELL: TASTE: context not distinctive, Gills perhaps very faintly acrid. SPORE PRINT: a-B Crawshay when fresh, nearer A than B. CHEMICAL REACTIONS Formalin on context - no reaction. Phenol on context - dark red, vinaceous (c 10E7) after 20 mins. FeS04 on context - rapidly faint pink. KOH on pileus and context - no reactions. NH4OH on pileus and context - no reactions. HABITAT: Gregarious under Leptospermum ericoides. Auckland, Titirangi, Atkinson Park, 13/2/67, Coll. R.F.R.- McNabb. Subcuticle c 150um thick composed of hyaline thin-walled septate hyphae, ascending or repent, +- interwoven, heavily gelatinised, 2-4um diam., terminal cells unspecialised; pilocystidia absent, but a few oleiferous hyphae present. Sections from areolae show a typical 'virescens structure' of linked filaments arising from inflated almost sphaerocyst-like cells. Filaments 2-7um to 50um long. Hymenophoral trama interwoven, oleiferous, hyphae sparingly present. Spores broadly elliptical obliquely apiculate, apiculus to 1.5um long, 7-9 x 6-7um, ornamentation of fine to moderately amyloid verrucose to 0.5um high, joined by fine to moderately coarse amyloid ridges, forming an an almost complete reticulum, occasionally isolated. Plage indistinct. Cheilocystidia filamentous to subclavate to 4um diam., crowded on gill edge. Cuticle of stipe composed of +- parallel to interwoven hyphae 2.5-5um diam., aggregated in places with terminal cells projecting obliquely or at right angles to surface. Basidia hyaline, +- clavate, 4-spored, sterigmata to 5.5um long, 35-48 x 6-8.5 um. Pleurocystidia extremely sparse, scattered, not or only slightly projecting beyond basidia, hyaline, thin-walled, contents sparse, slightly refractive in KOH, clavate to broadly fusiform, 63-85 x 9.8-14um. Apices acuminate occasionally strangulate or capitulate. [Ridley:] Basidiospores 6.5-8.5 x 5.27-7 um, [7-9 x 6-7um], Qm 1.30, broadly ellipsoid Q (1.14)1.23-1.38) (subglobose to) broadly ellipsoid to ellipsoid, hyaline. Ornamented with moderately crowded, occasionally obtuse, usually acute, amyloid verrucae to 0.75(-1)um high, joined by moderately fine low, amyloid ridges or occasionally isolated, forming a partial reticulum. Suprahilar plage indistinct, smooth inamyloid. Hilar appendix prominent, obconical, oblique, to 1.25 um long. (Fig. 26d). The plage was indistinct and poorly defined and the ornamentation was type IIIB. [Cooper:] All the material is from Bishops Reserve or Atkinson Park. The cap does have areolate patches. Away from areolate patches the cap is a plain ixocutis. Only the areolate patches have the terminal pilocystidia figured by McNabb (although he doesn’t recognise them as pilocystidia). There also numerous oleiferous hyphae in this region. DCY SV-ve. Cheilocystidia not seen at all and pleurocystidia rare (and collapsed). Fuchsinophile hyphae not seen. Spore print is cream/yellow and not white. Spores with no amyloid spot, with weak plage. Spores length=7.1–8.5µm (µ=7.8, σ=0.4), width=5.1–6.6µm (µ=5.8, σ=0.4), Q=1.2–1.5µm (µ=1.3, σ=0.1), n=20. Ridley has 6.5-8.5 x 5.25-7, Q=1.3, ornamentation to 0.7um. McNabb's notes on the type say lamellulae very occasionally present. They are not visible on the dried collection.
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