menu
×

Taxonomy

Collection 12017 is Hebeloma velatum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 12017 was collected by H.J. Beker, M.L. Beker on 16th August 2007 in Ny Alesund, SVALBARD (78.9155°N, 11.9624°E, altitude approximately 20 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.

    The surrounding habitat was described as arctic tundra pastureland with a substrate of rocky 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: yes.

    Pileus: 8–13 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre umber; and colour at margin greyish buff; with remains of universal veil no.

    Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 36; tears absent; white fimbriate edge present.

    Stipe: 20–21 x 2–3 {median} x 4–5 {basal} mm; stipe Q 7.0–8.0; base clavate, cylindrical; floccosity fibrillose; rooting no; mycelial chords no.

    Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base no; slenderness measure 15.7; smell not recorded; taste not recorded.

    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 not recorded; guttulate not recorded; papillate no; Spore Code: O1; O2; P0; D1.

    Basidia: 33.1–35.6 x 8.1–9.9 μm; ave. Q = 3.8; basidia spore nature not recorded.

    Cheilocystidia: main shape lageniform, ventricose; special features not recorded; Cheilocystidia Ratios: A/M = 1.07; A/B = 0.76; B/M = 1.43.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.4) 9.9–12.3 (13.6)11.111.10.940
    Width (µm)(5.9) 6.0–7.76.86.80.570
    Q(1.45) 1.48–1.81 (1.84)1.631.610.11

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(34) 35–51 (52)42425.07
    Apex Width(4.8) 5.0–6.7 (7.0)5.85.70.650
    Median Width(4.2) 4.4–6.1 (6.9)5.45.50.6
    Basal Width(6.4) 6.5–9.2 (9.5)7.77.60.89
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2007)-2.07 °C-6.07 °C38.96 mm
    Collection month (8/2007)4.71 °C1.41 °C34.80 mm
    Max month (2007)4.71 °C1.41 °C107.71 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 13.0 56.22 103rd–104th/111
Average length 11.1 10.95 42nd–52nd/117
Average width 6.8 6.41 17th–24th/117
Standard deviation of length 0.94 0.72 9th–10th/107
Standard deviation of width 0.57 0.38 4th/107
Median length 11.1 10.96 38th–45th/107
Median width 6.8 6.42 15th–25th/107
Minimum length 9.4 9.35 48th–53rd/113
Minimum width 5.9 5.60 24th–30th/113
Low length 9.9 9.84 39th–48th/113
Low width 6.0 5.85 31st–44th/113
High length 12.3 12.01 36th–42nd/113
High width 7.7 7.02 6th–9th/113
Max length 13.6 12.70 15th–18th/113
Max width 7.7 7.36 25th–28th/113
Spore featureValueCommonalities
Ornamentation O1; O2 98% of collections; 100% of collections
Perispore loosening P0 100% of collections
Dextrinoidity D1 99% of collections