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Taxonomy

Collection 11989 is Hebeloma alpinum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 11989 was collected by H.J. Beker, M.L. Beker on 14th August 2007 in Skansbukta, SVALBARD (78.516°N, 16.0174°E, altitude approximately 40 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.

    The surrounding habitat was described as arctic, coastal tundra with a substrate of 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 Russian Arctic desert 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: no.

    Pileus: 13–24 mm diameter; shape umbonate; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre yellowish brown; and colour at margin not recorded; with remains of universal veil no.

    Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 50; tears not recorded; white fimbriate edge present.

    Stipe: 17–18 x 2–3 {median} x 2–3 {basal} mm; stipe Q 6.0–6.8; base cylindrical; floccosity pruinose; rooting no; mycelial chords no.

    Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure 6.7; 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; colour through microscope brown pale; guttulate no; papillate yes; Spore Code: O1; O2; P0; D2.

    Basidia: 29.4–31.1 x 7.7–9.8 μm; ave. Q = 3.5; basidia spore nature not recorded.

    Cheilocystidia: main shape clavate-stipitate; special features apical thickening, septa; Cheilocystidia Ratios: A/M = 2.00; A/B = 2.12; B/M = 1.02.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(11.5) 12.1–14.9 (15.1)13.413.40.900
    Width (µm)(7.1) 7.3–8.2 (8.4)7.77.70.260
    Q(1.46) 1.55–1.88 (2.04)1.731.750.12

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(44) 50–61 (67)55544.85
    Apex Width(7.0) 7.1–9.4 (9.6)8.48.50.810
    Median Width3.4–5.64.34.20.69
    Basal Width2.2–6.3 (7.0)4.34.31.21
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2007)-1.52 °C-5.64 °C27.50 mm
    Collection month (8/2007)5.17 °C1.88 °C32.82 mm
    Max month (2007)5.63 °C2.19 °C69.48 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 50.0 51.92 47th–54th/86
Average length 13.4 12.22 6th/87
Average width 7.7 7.03 3rd–7th/87
Standard deviation of length 0.9 0.81 23rd/82
Standard deviation of width 0.26 0.41 76th–79th/82
Median length 13.4 12.23 6th/82
Median width 7.7 7.04 3rd–4th/82
Minimum length 11.5 10.47 4th–6th/84
Minimum width 7.1 6.19 1st/84
Low length 12.1 11.01 4th–5th/84
Low width 7.3 6.44 1st/84
High length 14.9 13.50 5th/84
High width 8.2 7.69 11th/84
Max length 15.1 14.03 10th–14th/84
Max width 8.4 8.03 18th–23rd/84
Spore featureValueCommonalities
Ornamentation O1; O2 24% of collections; 88% of collections
Perispore loosening P0 68% of collections
Dextrinoidity D2 58% of collections