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Russula macrocystidiata McNabb, New Zealand J. Bot. 11 709 (1973)
Russula macrocystidiata McNabb 1973
Segedin, B.P.; Pennycook, S.R. 2001: A nomenclatural checklist of agarics, boletes, and related secotioid and gasteromycetous fungi recorded from New Zealand. New Zealand Journal of Botany 39(2): 285-348.

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Endemic
Present
New Zealand
Political Region
Anon

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McNabb
McNabb
McNabb, R.F.R. 1973: Russulaceae of New Zealand. 2. Russula Pers. ex S.F. Gray. New Zealand Journal of Botany 11(4): 673-730.
1973
709
ICN
Russula macrocystidiata McNabb 1973
NZ holotype
species
Russula macrocystidiata
N. menziesii, [New Zealand], Nelson, Karamea, Umere, 31.1968, R. F. R. McN. (HOLOTYPE, PDD 30658)

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Fungi
Basidiomycota
Agaricomycetes
Russulales
Russulaceae
Russula
macrocystidiata

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McNabb, R.F.R. 1973: Russulaceae of New Zealand. 2. Russula Pers. ex S.F. Gray. New Zealand Journal of Botany 11(4): 673-730.

Russula macrocystidiata McNabb 1973

Under (1) Leptospermum ericoides, Auckland: Henderson Valley, Sharps Bush, 10.iii.l967, 16.V.1967, 21.vi.l967 (2 coils), R. F. R. McN. (PDD 26647, 26537. 26569, 26570). (2) Nothofagus fusca: Nelson, Oparara, Fenian Track, 4.i.l969, R. F. R. McN.; L. Daniels track. 15.V.1969, R. F. R. McN.; Karamea, Umere, 2.i.l968, R. F, R. McN. (3) N. menziesii, Auckland: Rotorua, Mangorewa Gorge, 25.iv.l967, R. F. R. McN (PDD 26593); Nelson, Karamea, Umere, 31.i.l968, R. F. R. McN. (holotype, pdd 30658); 29.xii.l969, R. F. R. McN. (2 coils); 13.xii.l969, A. Y. McN.; 411970 R. F. R. McN.; L. Daniels track, 25.iv.l969, R. F. R. McN.; Oparara R., 2.i.l970, R. F. R. McN. Otago: Secretary Is., 13.ii.l968, R. F. R. McN. (PDD 26934). (4) N. menziesii/N. cliffortioides: Canterbury, near Cass, 31.m.l968, M. J. Noonan. (5) N. solandri, Auckland, National Park, Whakapapaiti Stream, 2.v.1967, R. F. R. McN. (PDD 26606). (6) N. truncata: Nelson: Granite Creek, 6.1.1970, B. J. Denton.
pileus: 2.5-7 cm diam., convex when young, centrally depressed at maturity, slightly viscid under wet conditions, otherwise dry, finely subpruinose under lens, velar remnants absent, greyish magenta, greyish violet, or dull violet, often with yellow or greenish yellow areas; margins entire, non-pectinate. Cuticle composed of erect, thin-walled or slightly thick-walled, smooth, septate, hair-like hyphae to 125 µm long, 2.5-4.5 µm diam., without staining contents in KOH, terminal cells unspecialised, tapering apically, originating from inflated, short-celled hyphae arising from a layer of sphaerocysts, becoming disorganised and partially gelatinised with age; pilocystidia absent. lamellae: adnexed to adnate, crowded, thin, simple or forked near stipe, to 7 mm deep, white to creamy white, not discoloured at maturity but edges occasionally tinted with colours of stipe, lamellulae rare or absent. stipe: 2-5.5 cm long, ± equal or slightly expanded basally, 0.6-1.5 cm diam., dry, solid, finely furfuraceous under lens, paler than pileus, greyish magenta, beetroot, or rose, often with white flesh showing through, flesh white, unchanging on exposure to air. Cuticle composed of interwoven, repent, thin-walled, septate hyphae 2.5-4.5 µm diam., terminal cells projecting and aggregated into clumps; caulocystidia absent. spores: spore print not obtained; spores broadly elliptical to ovate, obliquely apiculate, apiculus to -1.5 µm long, 9-11 X 7.5-9.5 µm, ornamentation dense, of amyloid or partially inamyloid, truncated spines to 1.4-(1.8) µm high, in small confluent groups, joined basally by moderately fine amyloid ridges and forming a partial reticulum, or occasionally isolated; plage conspicuous. hymenium: basidia hyaline, clavate, 30-45 X 10.5-13 µm, 4-spored, sterigmata to 7 µm long; pleurocystidia scattered, numerous, fusiform to broadly fusiform, hyaline, thick-walled, walls to 2.5 µm thick at mid point, thinner at base and apex, contents refractive in KOH, projecting to 70 µm beyond basidia, apices, acuminate, strangulate, or capitulate, 60-135 X 9-21 µm, cheilocystidia numerous, filamentous, septate, simple or occasionally sparingly branched apically, to 5 µm diam., intermixed with a few short pleurocystidia. hymenophoral trama: heteromerous, intermixed. context of pileus: white, unchanging; structure heteromerous, clamp connections absent. taste: Lamellae and gills mild. chemical characters: formalin n.r.; phenol—slowly faintly deep purplish red; FeSO4—faint salmon pink; guaiacol—n.r.; KOH on pileus —bright brownish orange; on context—n.r.; NH4OH on pileus and context—n.r.
Solitary or gregarious under Leptospermum and Nothofagus spp.
Pileus centraliter depressus 2.5-7 cm diam., griseo-violaceus, subtiliter pruinosus; veli vestigia deficiunt; margines integri, non pectinati. Lamellae adnexae ad adnatas ad 7 mm altae cremeo-albae; lamellulae rarae. Stipes 2-5.5 cm longus, basim parum dilatatus, 0.6-1.5 cm diam., siccus, solidus, concolor cum pileo. Sporae late ellipticae ad ovatas 9-11 x 7.5-9.5 µm, amyloides vel partim inamyloides dense ornatae.
Russula macrocystidiata belongs in section Rigidae and, like R. tawai, is possibly best assigned to subsection Amoeninae (Singer 1962). It resembles R. tawai in many respects, but may be distinguished by the white to creamy white lamellae, white context, thinner walled pleurocystidia projecting to 70 µm beyond the basidia, and the slightly different spore ornamentation.
holotype, pdd 30658

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Russula macrocystidiata McNabb 1973
Russula macrocystidiata McNabb 1973
Anon.
Russula macrocystidiata McNabb 1973
Russula macrocystidiata McNabb (1973)
Dingley, J.M. (1978)
Russula macrocystidiata McNabb 1973
Russula macrocystidiata McNabb (1973)
McKenzie, E.H.C.; Buchanan, P.K.; Johnston, P.R. (2000)
Russula macrocystidiata McNabb 1973
Russula macrocystidiata McNabb (1973)
McNabb, R.F.R. (1973)
Russula macrocystidiata McNabb 1973
Russula macrocystidiata McNabb (1973)
Pennycook, S.R.; Galloway, D.J. (2004)
Russula macrocystidiata McNabb 1973
Russula macrocystidiata McNabb (1973)
Ridley, G.S.; Horne, D. (2006)
Russula macrocystidiata McNabb 1973
Russula macrocystidiata McNabb (1973)
Ridley, G.S.; Taylor, G.M. (1997)
Russula macrocystidiata McNabb 1973
Russula macrocystidiata McNabb (1973)
Segedin, B.P.; Pennycook, S.R. (2001)
Russula macrocystidiata McNabb 1973

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Russula macrocystidiata McNabb 1973
[Not available]
87 Link to an external page

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typification
N. menziesii, [New Zealand], Nelson, Karamea, Umere, 31.1968, R. F. R. McN. (HOLOTYPE, PDD 30658)

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1cb19f59-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
18 October 2022
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