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Taxonomy

Collection 11100 is Hebeloma alpinum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 11100 was collected by H.J. Beker, M.L. Beker, det: H.J. Beker on 9th August 2005 in Spittelmatte, SWITZERLAND (approx. 46.4395°N, 7.6378°E, altitude approximately 2000 m above sea level - Google maps). The ectomycorrhizal families Rosaceae (genus Dryas) and Salicaceae (genus Salix) were present.

    The surrounding habitat was described as alpine meadow with a substrate of calcareous, decomposed soil and litter, 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. 5.11: Wetlands (inland) – Alpine wetlands (inc. temporary waters from snowmelt).

    According to the GPS data the collection was in the Alps conifer and mixed forests 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: Temperate Conifer Forests) and Koppen climate code ET (Polar, tundra).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: up to 53 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre yellowish brown; and colour at margin pale cream; with remains of universal veil no.

    Lamellae: attachment emarginate; maximum depth up to 6 mm; number of complete lamellae 58; tears visible with naked eye; white fimbriate edge present.

    Stipe: 35 x 11 {median} x 15 {basal} mm; stipe Q 3.2; base clavate; floccosity floccose; rooting no; mycelial chords no.

    Context: texture firm; stipe interior hollow; stipe flesh discolouring from base weak; slenderness measure 2.1; smell cocoa; taste mild.

    Spore deposit colour: yellowish brown.

    Exsiccata: normal.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid; colour through microscope brown; guttulate no; papillate yes; Spore Code: O3; P1; D1.

    Basidia: 31.5–32.5 x 8.8–9.0 μm; ave. Q = 3.6; basidia spore nature not recorded.

    Cheilocystidia: main shape capitate-stipitate, clavate-stipitate, spathulate-stipitate; special features apical thickening; Cheilocystidia Ratios: A/M = 2.38; A/B = 2.49; B/M = 0.99.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 110 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis ellipsoid, thickly sausage-shaped, spherical up to 15 μm wide.

    Caulocystidia: caulocystidia maximum length 100 μm.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.4) 10.7–12.2 (13.5)11.411.30.530
    Width (µm)(5.8) 5.9–7.2 (7.6)6.56.50.380
    Q(1.54) 1.61–1.93 (1.95)1.741.730.1

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(52) 53–77 (82)66677.74
    Apex Width(6.5) 7.2–10.9 (13.5)9.09.01.220
    Median Width2.9–5.03.83.80.63
    Basal Width(2.7) 3.1–4.6 (5.2)3.73.60.56
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2005)2.78 °C-3.37 °C71.51 mm
    Collection month (8/2005)10.30 °C4.46 °C101.93 mm
    Max month (2005)11.20 °C5.11 °C126.62 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 68.0 51.92 16th/86
Average length 11.4 12.22 78th–79th/87
Average width 6.5 7.03 79th–81st/87
Standard deviation of length 0.53 0.81 81st/82
Standard deviation of width 0.38 0.41 51st–52nd/82
Median length 11.3 12.23 74th–77th/82
Median width 6.5 7.04 75th–76th/82
Minimum length 10.4 10.47 45th–50th/84
Minimum width 5.8 6.19 64th–72nd/84
Low length 10.7 11.01 60th–64th/84
Low width 5.9 6.44 76th–81st/84
High length 12.2 13.50 80th–81st/84
High width 7.2 7.69 71st–76th/84
Max length 13.5 14.03 52nd–58th/84
Max width 7.6 8.03 66th–70th/84
Spore featureValueCommonalities
Ornamentation O3 35% of collections
Perispore loosening P1 52% of collections
Dextrinoidity D1 72% of collections