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Taxonomy

Collection 16886 is Hebeloma pubescens.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 16886 was collected by L. Davies, H.J. Beker on 18th August 2017 in Fort Ross, Somerset Island, Nunavut, CANADA (72.0106°N, 94.2385°W, altitude approximately 10 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.

    The surrounding habitat was described as arctic tundra with a substrate of mossy 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. 4.1: Grassland – Tundra.

    According to the GPS data the collection was in the Canadian Middle Arctic 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 ET (Polar, tundra).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: yes.

    Pileus: 11–17 mm diameter; shape umbonate broadly; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre sepia; and colour at margin yellowish brown; with remains of universal veil no.

    Lamellae: attachment emarginate; maximum depth up to 3 mm; number of complete lamellae 28; tears absent; white fimbriate edge absent.

    Stipe: 15–20 x 3–4 {median} x 3–4 {basal} mm; stipe Q 4.5–5.0; base cylindrical; floccosity fibrillose; rooting no; mycelial chords no.

    Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base no; slenderness measure 6.0; 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 ellipsoid, ovoid; colour through microscope not recorded; guttulate not recorded; papillate no; Spore Code: O1; O2; P0; D1.

    Basidia: 31.7–34.2 x 8.1–10.3 μm; ave. Q = 3.7; basidia spore nature not recorded.

    Cheilocystidia: main shape lageniform, ventricose; special features septa; Cheilocystidia Ratios: A/M = 1.08; A/B = 0.72; B/M = 1.52.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.2) 9.3–10.9 (11.7)10.110.10.560
    Width (µm)(5.9) 6.0–6.9 (7.1)6.46.40.260
    Q(1.40) 1.42–1.73 (1.78)1.581.580.09

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(29) 34–61 (65)45429.11
    Apex Width(4.6) 4.7–6.9 (7.0)5.95.90.670
    Median Width(4.4) 4.8–6.1 (6.2)5.55.60.48
    Basal Width(6.8) 6.9–10.5 (10.6)8.48.11.12
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2017)-8.86 °C-15.68 °C16.35 mm
    Collection month (8/2017)8.60 °C2.10 °C42.60 mm
    Max month (2017)9.50 °C2.90 °C42.60 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 38.0 54.22 8th/9
Average length 10.1 10.74 9th/9
Average width 6.4 6.30 3rd–4th/9
Standard deviation of length 0.56 0.63 5th–6th/9
Standard deviation of width 0.26 0.35 9th/9
Median length 10.1 10.73 9th/9
Median width 6.4 6.26 2nd–4th/9
Minimum length 9.2 9.49 7th/9
Minimum width 5.9 5.59 1st–2nd/9
Low length 9.3 9.72 7th–8th/9
Low width 6.0 5.79 2nd–3rd/9
High length 10.9 11.77 8th–9th/9
High width 6.9 6.86 4th–5th/9
Max length 11.7 12.24 7th–8th/9
Max width 7.1 7.13 4th–5th/9
Spore featureValueCommonalities
Ornamentation O1; O2 88% of collections; 33% of collections
Perispore loosening P0 100% of collections
Dextrinoidity D1 22% of collections