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Taxonomy

Collection 17897 (herbarium acc. no. DENA-61424) is Hebeloma neurophyllum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 17897 was collected by H.J. Beker, L. Davies on 18th August 2018 in Kantishna Roadhouse Nature Trail, Denali National Park, Alaska, UNITED STATES (63.5243°N, 150.9625°W, altitude approximately 490 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genera Alnus and Betula) and Salicaceae (genus Salix) were present.

    The surrounding habitat was described as boreal, mixed but mainly coniferous woodland pathside with a substrate of sandy soil, corresponding to the IUCN habitat We map from the collector's description of the habitat to the International Union for Conservation of Nature (IUCN)'s definition using a standardised set of rules. Please see this page for a full list of IUCN habitats. 1.1: Forest – Boreal.

    According to the GPS data the collection was in the Alaska-St. Elias Range tundra WWF ecoregion The World Wildlife Fund (WWF) have divided the world into 867 terrestrial ecoregions. The ecoregion here is estimated by mapping from the GPS coordinates of the collection using data made available by Dinerstein et al (2017). Use this webtool to explore the ecoregions visually or see a full list of current ecoregions on Wikipedia. (biome: Tundra) and Koppen climate code Dfc (Cold, no dry season, cold summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: up to 31 mm diameter; shape umbonate strongly; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre cream; and colour at margin not recorded; with remains of universal veil no.

    Lamellae: attachment emarginate; maximum depth up to 3 mm; number of complete lamellae 76; tears absent; white fimbriate edge present.

    Stipe: 36 x 6 {median} x 10 {basal} mm; stipe Q 6.0; base clavate; floccosity floccose weak; rooting no; mycelial chords no.

    Context: texture firm; stipe interior hollow; stipe flesh discolouring from base weak; slenderness measure 7.0; smell raphanoid; taste not recorded.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid, limoniform; colour through microscope not recorded; guttulate not recorded; papillate very strongly; Spore Code: O3; P1; P2; D4.

    Basidia: 27.5–31.4 x 8.5–9.5 μm; ave. Q = 3.2; basidia spore nature not recorded.

    Cheilocystidia: main shape gently clavate, cylindrical, ventricose; special features basal thickening, geniculate, septa; Cheilocystidia Ratios: A/M = 1.32; A/B = 1.23; B/M = 1.16.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(11.0) 12.3–14.7 (14.9)13.513.50.780
    Width (µm)(7.2) 7.3–8.6 (8.7)8.08.00.410
    Q(1.43) 1.51–1.80 (1.91)1.691.700.1

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(34) 45–67 (69)55557.8
    Apex Width(4.2) 4.8–8.2 (8.8)6.46.31.100
    Median Width(3.4) 3.8–6.0 (6.2)4.94.80.75
    Basal Width(3.2) 3.4–7.0 (9.3)5.65.91.51
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2018)2.97 °C-5.92 °C48.50 mm
    Collection month (8/2018)13.24 °C6.24 °C138.54 mm
    Max month (2018)19.15 °C7.55 °C138.54 mm

Compare this collection to its species

This section compares data for this collection against its true species and also against the most likely species as determined by our identifier. More often than not these will be the same species, but where this is not the case, the data may be used to help explain why the identifier got it wrong.

Image gallery

Detailed statistics

Spore measurementsMy valueSpecies mean valuePosition
Count 36.0 54.61 19th/23
Average length 13.5 12.84 4th/23
Average width 8.0 7.79 6th–7th/23
Standard deviation of length 0.78 0.90 18th/23
Standard deviation of width 0.41 0.45 15th/23
Median length 13.5 12.81 4th/23
Median width 8.0 7.73 5th–7th/23
Minimum length 11.0 10.91 8th–11th/23
Minimum width 7.2 6.85 2nd–3rd/23
Low length 12.3 11.50 3rd/23
Low width 7.3 7.11 4th–6th/23
High length 14.7 14.31 7th–8th/23
High width 8.6 8.53 12th/23
Max length 14.9 14.85 12th–13th/23
Max width 8.7 8.81 13th–16th/23
Spore featureValueCommonalities
Ornamentation O3 100% of collections
Perispore loosening P1; P2 82% of collections; 100% of collections
Dextrinoidity D4 34% of collections