Collection 12203 (herbarium acc. no. C-F-119750) is Hebeloma pubescens.


  • arrow_drop_downarrow_drop_upCollecting details

    Collection 12203 was collected by T. Borgen (99.194), det: J. Vesterholt on 5th August 1999 in Zackenberg, W of Zackenberg River, N, GREENLAND (approx. 74.5°N, 21°W, altitude approximately 50 m above sea level - Google maps). The ectomycorrhizal families Rosaceae (genus Dryas) and Salicaceae (genus Salix) were present.

    The surrounding habitat was described as arctic tundra with a substrate of dry, grassy 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 Kalaallit Nunaat Arctic steppe 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: up to 21 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.

    Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 28; tears not recorded; white fimbriate edge present.

    Stipe: 25 x 3 {median} x 3 {basal} mm; stipe Q 8.3; base cylindrical; floccosity fibrillose, pruinose at apex; rooting no; mycelial chords not recorded.

    Context: texture firm; stipe interior hollow; stipe flesh discolouring from base yes; slenderness measure 9.9; smell raphanoid; taste mild.

    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 yellow; guttulate no; papillate no; Spore Code: O2; P0; D0.

    Basidia: 24.4–31.5 x 6.9–8.5 μm; ave. Q = 3.5; basidia spore nature not recorded.

    Cheilocystidia: main shape lageniform, ventricose; special features basal thickening, septa; Cheilocystidia Ratios: A/M = 1.03; A/B = 0.51; B/M = 2.10.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(8.9) 9.2–11.7 (12.3)10.510.40.710
    Width (µm)(5.2) 5.8–7.0 (7.3)
    Q(1.41) 1.47–1.79 (2.01)1.631.620.11

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(24) 31–58 (76)444410.57
    Apex Width(3.9) 4.0–5.3 (6.7)
    Median Width(3.4) 3.6–6.1 (6.3)
    Basal Width(6.5) 7.4–12.9 (14.9)
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1999)-7.10 °C-13.90 °C36.26 mm
    Collection month (8/1999)2.84 °C-2.07 °C27.10 mm
    Max month (1999)5.60 °C-1.11 °C88.80 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 77.0 54.22 1st/9
Average length 10.5 10.74 6th/9
Average width 6.4 6.30 3rd–4th/9
Standard deviation of length 0.71 0.63 3rd/9
Standard deviation of width 0.4 0.35 2nd–3rd/9
Median length 10.4 10.73 6th/9
Median width 6.4 6.26 2nd–4th/9
Minimum length 8.9 9.49 9th/9
Minimum width 5.2 5.59 9th/9
Low length 9.2 9.72 9th/9
Low width 5.8 5.79 4th/9
High length 11.7 11.77 4th/9
High width 7.0 6.86 2nd–3rd/9
Max length 12.3 12.24 4th/9
Max width 7.3 7.13 2nd/9
Spore featureValueCommonalities
Ornamentation O2 33% of collections
Perispore loosening P0 100% of collections
Dextrinoidity D0 77% of collections