PDD 26936 – Russula multicystidiata McNabb
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 26936
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 multicystidiata
Determiner:
R.F.R. McNabb
Identification date:
Preferred name:
Russula multicystidiata 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 45 (Russula)
Verbatim date:
1967/03/13
Start date:
1967-03-13
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:] Packet #45 (same as 19,30)., 203. book 3, group 11. PILEUS: 4.5-5.5 cm diam., infundibuliform, glabrous, no indications of velar remnants, margins not radially ridged and grooved, rather thick, firm, pallid cream, cream or pallid creamy-ochraceous, not viscid. GILLS: white to pallid creamy white, crowded, to 5 mm deep, simple or forked anywhere between stipe and margins, lamellulae numerous, often in some sequence, 2 and 3-ary lamellulae present. Not discoloured at maturity. STIPE: 2-2.5 cm long, more or less equal or tapering basally, 0.8-1 cm diam., no indications of velar remnants, annulus absent, white to pallid creamy white glabrous, dry, solid, very faintly subvelutinate under lens near apex. Flesh white, firm, unchanging, rather granular. CONTEXT OF PILEUS: white, firm, unchanging, rather granular. SMELL: not noted. SPORE PRINT: TASTE: gills and context not distinctive. Crawshay B-C when fresh. CHEMICAL REACTIONS: Formalin on context - no reaction, Phenol on context - deep red, vinaceous. FeS04 on context pallid salmon pink. KOH on pileus - darkening to faintly reddish brown KOH on context NH40H on pileus and context - no reactions. HABITAT: Solitary under Leptospermum ericoides, Auckland, Titirangi, Atkinson Park, 13.3.67, Coll. R.F.R. McNabb. Cuticle of pileus 200-250um thick, composed of +- interwoven repent or obliquely ascending hyaline thin-walled septate hyphae, 2.5-. Pleurocystidia not numerous, +- cylindrical, apically rounded acuminate or capitulate. Contents refractive in KOH, of variable length, 3.5-6um diam. Cuticle of stipe similar to that of pileus, hyphae +- interwoven, repent, caulocystidia similar to pilocystidia. Cheilocystidia numerous, similar to pleurocystidia but shorter. Basidia hyaline, clavate 52-77 x 9.8 - 11.9um, sterigmata to 7um long. Spores broadly ellipitical obliquely apiculate apiculus to 1.5(-2)um, 8.4-11.2 x 7-8.8um. Ornamentation of moderately sparse amyloid verrucae of varying size and shape to 2um high. Isolated or joined by fine amyloid ridges and forming a partial reticulum. Plage not seen. Pleurocystidia extremely numerous, scattered, thin-walled, hyaline, narrowly fusiform, +- irregularly cylindrical or subclavate, apices acuminate, capitulate, undulate or strangulate, not projecting, contents refractive in KOH, 56-88 x 5.1-77. [Ridley:] Basidiospores 6-7 x 4.5-6 um, [8.5-11 x 7-9 um] Qm 1.34, ellipsoid, Q 1.16-1.55, broadly ellipsoid to ellipsoid, hyaline. Ornamented with moderately coarse, moderately crowded, amyloid verrucae to 0.75 um, occasionally isolated, but mostly confluent in small groups, joined by coarse to moderately fine, low, inamyloid to amyloid ridges, forming a partial reticulum. Suprahilar plage indistinct, inamyloid, roughened, c. 1 5 um wide. Hilar appendix obconical, oblique, 1-1.25 um long. (Fig. 24f). In SEM this species had a small but distinct plage. The verrucae were similar to those found in R. albolutescens, that is slightly constricted at the base giving a knob-like appearance and the ornamentation was type IIIB. [Cooper:] Packet contains cards on cremoochracea which then assign 19 & 30 to that taxon. Did McNabb had difficulty deciding between them?. Gills dried flesh pink. Has single series of lamellulae except they are very short, just a few mm and < 1/10 of diameter. Spores are sparse on the print. Spore clumps present on gills and used for photos. No DCY SV+ve (in either fruitbody of holotype) - unlike Pat’s current description. Lamellulae present on the whole fruitbody in the type collections. The collection that is split in two has cap hyphae intermixed with arthrobotrys. Cystidia not clear in the mix. Plage delimited, just. No amyloid spot. Most verrucae are separate, joint with lines in just a very few isolated spores. Cap cystidia only visible in KOH. Fruitbody 1 spores length=6.5–7.9µm (µ=7.1, σ=0.3), width=4.9–5.7µm (µ=5.3, σ=0.2), Q=1.3–1.4µm (µ=1.3, σ=0.1), n=16. 2nd fruitbody (suspected real multcystidiata) length=8.8–10.3µm (µ=9.3, σ=0.5), width=6.2–7.1µm (µ=6.6, σ=0.3), Q=1.3–1.6µm (µ=1.4, σ=0.1), n=19, ornamentation to 1um high. A mixed type collection? McNabb's key for this taxon does not work) on spore size relativity to australis at least). No fuchsinophile granules seen. Rechecked SV reaction and material hardly exudes pigment and cap hyphae are brown but not convinced there is any SV reaction at all, and there are definitely no SV granules.
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