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Russula littoralis McNabb 1973

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McNabb
McNabb
1973
681
illegitimate
ICN
Russula littoralis McNabb 1973
NZ
species
Russula littoralis

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littoralis

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Russula littoralis McNabb 1973

Under L. scoparium, Auckland: Bethell's Beach, 22.iii.l967, R. F. R. McN. (2 coils) (holotype, PDD 26940).
pileus: 3-5.5 cm diam., hemispherical when young, centrally depressed at maturity, slightly viscid under wet conditions, otherwise dry, glabrous, velar remnants absent, pallid creamy white, cream, or creamy ochraceous; margins entire, thick, non-pectinate. Cuticle 250-300 µm thick, composed of ± repent or obliquely ascending, interwoven hyphae and pilocystidia; hyphae thin-walled, septate, 2.5-5 µm diam., terminal cells unspecialised; pilocystidia relatively numerous, often superficial, cylindrical to fusiform, thin-walled, apices acuminate, strangulate, or capitulate, contents refractive in KOH, of variable length, 4-8 µm diam. lamellae: adnate, crowded, moderately thick, simple or forked near stipe, to 4 mm deep, pallid creamy white, not discoloured at maturity, lamellulae numerous, typically in partial sequence. stipe: 2-3.5 cm long, ± equal, 1.2-1.5 cm diam., solid, dry, finely granular-furfuraceous under lens, white to faintly creamy white; flesh white, unchanging on exposure to air. Cuticle similar to that of pileus, caulocystidia often superficial, similar to pilocystidia. spores: spore print not obtained; spores broadly elliptical, obliquely apiculate, apiculus to 1.5-(2) µm long, 7-8.5 X 6-7.5 µm, ornamentation moderately dense, of amyloid verrucae to 0.7 µm high, isolated or joined by fine amyloid ridges and forming a partial reticulum; plage indistinct. hymenium: basidia hyaline, clavate, 44-63 X 8-10.5 µm, 4-spored, sterigmata to 7 µm long; pleurocystidia scattered, extremely numerous, fusiform, hyaline, thin-walled, contents refractive in KOH, projecting to 15 µm beyond basidia, apices acuminate, strangulate, or capitulate, 56-91 X 7.5-10.5 µm, cheilocystidia numerous, similar to pleurocystidia but shorter, hymenophoral trama: heteromerous, intermixed. context of pileus: white, firm, unchanging; structure, heteromerous, clamp connections absent. taste: lamellae acrid, context slightly acrid. chemical characters: formalin on context—n.r.; phenol on context—slowly deep vinaceous; FeSO4 on context—pallid salmon pink; KOH on pileus— darkening slightly; on context—n.r.; NH4OH on pileus and context— n.r.
Solitary or in pairs under Leptospermum.
Pileus centraliter depressus 3-5.5 cm diam., cremeo-ochraceus, siccus, glaber; veli vestigia deficiunt; margines integri, non pectinati. Lamellae adnatae ad 4 mm altae, pallide cremeo-albae; lamellulae numerosae. Stipes 2-3.5 cm longus, plus minusve aequalis, 1.2-1.5 cm diam., solidus, siccus, concolor cum pileo. Sporae 7-8.5 x 6-7.5 µm, amyloides dense ornatae.
This species resembles R. papakaiensis in many ways but lamellae do not discolour. Pleurocystidia are more numerous and spores more densely and evenly verrucose.
holotype, PDD 26940

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Russula littoralis McNabb 1973
Russula littoralis McNabb (1973)
Russula littoralis McNabb 1973
Russula littoralis McNabb (1973)

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Russula littoralis McNabb 1973
New Zealand
Auckland
Russula littoralis McNabb 1973
New Zealand
Taupo
Russula littoralis McNabb 1973
New Zealand
Wairarapa
Russula littoralis McNabb 1973
New Zealand
Westland

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taxonomic status
requires a nom. nov.

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1cb1d3c8-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
5 April 2001
26 September 2003
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