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Taxonomy

Collection 1000064 (herbarium acc. no. LY BR69-22) is Hebeloma discomorbidum. It is the holotype of heterotypic synonym Hebeloma candidipes Bruchet (1970).

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000064 was collected by G. Bruchet on 13th September 1969 in La Foret du Praz de Saint-Bon,, Savoie, FRANCE (approx. 45.41°N, 6.6°E, altitude approximately 2150 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Picea) was present.

    The surrounding habitat was described as subalpine woodland with a substrate of boggy 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. 1.1: Forest – Boreal.

    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 Dfc (Cold, no dry season, cold summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: yes.

    Pileus: 20–40 mm diameter; shape convex, umbonate; margin characters involute; viscosity tacky when moist; spotting no; hygrophanous yes; colour variation two-colour; with colour at centre yellowish brown; and colour at margin cream; with remains of universal veil yes.

    Lamellae: attachment adnexed, emarginate; maximum depth not recorded; number of complete lamellae 40; tears visible with x10 lens; white fimbriate edge present.

    Stipe: 50–70 x 4–5 {median} x 4–5 {basal} mm; stipe Q 12.5–14.0; base cylindrical; floccosity fibrillose, pruinose at apex; rooting no; mycelial chords no.

    Context: texture firm; stipe interior hollow; stipe flesh discolouring from base no; slenderness measure 27.9; smell cocoa, raphanoid; taste bitter strongly, raphanoid.

    Spore deposit colour: yellowish brown.

    Exsiccata: dark, lamellae blackening.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid, limoniform; colour through microscope yellow; guttulate no; papillate yes; Spore Code: O2; P1; D3.

    Basidia: 26.8–30.0 x 7.1–7.8 μm; ave. Q = 3.8; basidia spore nature not recorded.

    Cheilocystidia: main shape cylindrical, lageniform, ventricose; special features median thickening, septa; Cheilocystidia Ratios: A/M = 0.93; A/B = 0.60; B/M = 1.66.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) not recorded; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis not recorded.

    Caulocystidia: caulocystidia maximum length 80 μm.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.0) 9.7–12.7 (13.7)11.011.00.940
    Width (µm)(5.2) 5.5–7.2 (7.6)6.56.50.490
    Q(1.52) 1.56–1.89 (1.99)1.701.680.1

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length47–53 (55)49492.77
    Apex Width(3.7) 3.8–5.6 (5.9)4.64.40.750
    Median Width(4.4) 4.5–6.2 (6.6)5.04.70.82
    Basal Width(4.9) 5.7–10.1 (10.4)8.18.21.82
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1969)4.18 °C-3.00 °C113.45 mm
    Collection month (9/1969)10.00 °C3.17 °C113.43 mm
    Max month (1969)13.50 °C5.26 °C178.13 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 58.0 43.34 31st/99
Average length 11.0 11.86 86th–91st/100
Average width 6.5 6.83 77th–81st/100
Standard deviation of length 0.94 0.80 20th–21st/99
Standard deviation of width 0.49 0.39 14th–16th/99
Median length 11.0 11.83 83rd–89th/99
Median width 6.5 6.82 75th–81st/99
Minimum length 9.0 10.21 96th–98th/100
Minimum width 5.2 5.99 96th–98th/100
Low length 9.7 10.66 93rd–95th/100
Low width 5.5 6.24 95th–99th/100
High length 12.7 13.06 59th–63rd/100
High width 7.2 7.41 66th–73rd/100
Max length 13.7 13.54 44th–48th/100
Max width 7.6 7.66 54th–60th/100
Spore featureValueCommonalities
Ornamentation O2 92% of collections
Perispore loosening P1 39% of collections
Dextrinoidity D3 83% of collections