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Taxonomy

Collection 14926 (herbarium acc. no. O 362280) is Hebeloma alpinum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 14926 was collected by J. Stordal (11.680) on 5th August 1960 in Vest-Spitsbergen, Dicksonfjorden, Kapp Wijk,near Hytta, SVALBARD (approx. 78.5996°N, 15.1966°E, altitude approximately 0 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.

    The surrounding habitat was described as arctic tundra, 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.

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: analysis not yet complete.

    Lamellae: attachment not recorded; maximum depth not recorded; number of complete lamellae 60; tears not recorded; white fimbriate edge not recorded.

    Stipe: analysis not yet complete.

    Context: analysis not yet complete.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid; colour through microscope not recorded; guttulate not recorded; papillate yes; Spore Code: O2; P0; P1; D2.

    Basidia: 27.9–29.7 x 7.8–8.9 μm; ave. Q = 3.5; basidia spore nature not recorded.

    Cheilocystidia: main shape capitate-stipitate, clavate-stipitate; special features apical thickening, many collapsed in exsiccata, septa; Cheilocystidia Ratios: A/M = 2.04; A/B = 2.48; B/M = 0.92.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.9) 11.0–12.6 (12.7)11.911.90.610
    Width (µm)(6.9) 7.0–7.6 (7.7)7.37.30.240
    Q(1.46) 1.50–1.75 (1.78)1.631.630.09

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(46) 47–61 (63)53525.59
    Apex Width(6.9) 7.0–11.0 (13.1)8.47.91.610
    Median Width(3.2) 3.3–5.3 (6.4)4.24.10.76
    Basal Width(1.8) 2.1–7.2 (9.8)3.93.51.88
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1960)-3.82 °C-8.34 °C31.66 mm
    Collection month (8/1960)6.38 °C3.49 °C35.60 mm
    Max month (1960)9.52 °C4.48 °C68.10 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 8.0 51.92 86th/86
Average length 11.9 12.22 55th–61st/87
Average width 7.3 7.03 17th–22nd/87
Standard deviation of length 0.61 0.81 70th/82
Standard deviation of width 0.24 0.41 81st/82
Median length 11.9 12.23 52nd–57th/82
Median width 7.3 7.04 20th–26th/82
Minimum length 10.9 10.47 17th–22nd/84
Minimum width 6.9 6.19 2nd–4th/84
Low length 11.0 11.01 41st–46th/84
Low width 7.0 6.44 4th–7th/84
High length 12.6 13.50 72nd–76th/84
High width 7.6 7.69 44th–50th/84
Max length 12.7 14.03 79th–81st/84
Max width 7.7 8.03 62nd–65th/84
Spore featureValueCommonalities
Ornamentation O2 88% of collections
Perispore loosening P0; P1 68% of collections; 52% of collections
Dextrinoidity D2 58% of collections