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Taxonomy

Collection 19712 (herbarium acc. no. C-F-133795) is Hebeloma alpinum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 19712 was collected by D. Boertmann (95007) on 25th August 1995 in Thule, Dundas, N, GREENLAND (approx. 76.5667°N, 68.75°W, altitude approximately 100 m above sea level - Google maps). The ectomycorrhizal family Rosaceae (genus Dryas) was present.

    The surrounding habitat was described as arctic tundra snowbed, 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. 5.1: Wetlands (inland) – Permanent rivers/streams/creeks (includes waterfalls).

    According to the GPS data the collection was in the Kalaallit Nunaat High 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: no.

    Pileus: not recorded diameter; shape not recorded; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation unicolor; with colour at centre cream; and colour at margin not recorded; with remains of universal veil not recorded.

    Lamellae: attachment not recorded; maximum depth not recorded; number of complete lamellae 48; 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, limoniform; colour through microscope not recorded; guttulate not recorded; papillate yes; Spore Code: O2; P0; P1; D0; D1.

    Basidia: 29.9–34.2 x 8.9–9.8 μm; ave. Q = 3.4; basidia spore nature not recorded.

    Cheilocystidia: main shape clavate-stipitate; special features many collapsed in exsiccata; Cheilocystidia Ratios: A/M = 1.83; A/B = 1.92; B/M = 0.98.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.2) 11.2–15.2 (15.9)13.513.61.310
    Width (µm)(6.1) 7.1–8.7 (9.0)7.97.80.580
    Q(1.44) 1.46–1.95 (2.11)1.731.710.15

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(41) 43–58 (59)52526.22
    Apex Width(6.4) 6.6–8.7 (8.8)7.77.80.830
    Median Width(3.5) 3.6–5.2 (5.5)4.34.20.68
    Basal Width(2.7) 3.0–5.04.24.40.88
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1995)-7.52 °C-13.78 °C10.57 mm
    Collection month (8/1995)6.41 °C1.83 °C0.80 mm
    Max month (1995)7.60 °C3.75 °C26.50 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 25.0 51.92 73rd–74th/86
Average length 13.5 12.22 5th/87
Average width 7.9 7.03 1st–2nd/87
Standard deviation of length 1.31 0.81 1st/82
Standard deviation of width 0.58 0.41 7th/82
Median length 13.6 12.23 5th/82
Median width 7.8 7.04 2nd/82
Minimum length 10.2 10.47 53rd–58th/84
Minimum width 6.1 6.19 50th–53rd/84
Low length 11.2 11.01 24th–31st/84
Low width 7.1 6.44 2nd–3rd/84
High length 15.2 13.50 2nd–3rd/84
High width 8.7 7.69 2nd–3rd/84
Max length 15.9 14.03 3rd/84
Max width 9.0 8.03 1st–2nd/84
Spore featureValueCommonalities
Ornamentation O2 88% of collections
Perispore loosening P0; P1 68% of collections; 52% of collections
Dextrinoidity D0; D1 12% of collections; 72% of collections